MAGNETROL 345-0442-100

Model 344/345
Software version 2.3
Installation and Operating Manual
Ultrasonic Non-Contact
Transmitters for Level,
Volume, or Open
Channel Flow
Read this Manual Before Installing
This manual provides information on the Echotel®
Model 344/345 Ultrasonic Transmitter. It is important
that all instructions are read carefully and followed in
sequence. Detailed instructions are included in the
Unit Configuration section of this manual.
Conventions Used in this Manual
Certain conventions are used in this manual to convey
specific types of information. General technical material,
support data, and safety information are presented in narrative form. The following styles are used for notes, cautions, and warnings.
NOTES
Notes contain information that augments or clarifies an
operating step. Notes do not normally contain actions.
They follow the procedural steps to which they refer.
Cautions
Cautions alert the technician to special conditions that
could injure personnel, damage equipment, or reduce
a component’s mechanical integrity. Cautions are also
used to alert the technician to unsafe practices or the
need for special protective equipment or specific materials. In this manual, a caution box indicates a potentially hazardous situation which, if not avoided, may
result in minor or moderate injury.
WARNINGS
Warnings identify potentially dangerous situations or
serious hazards. In this manual, a warning indicates an
imminently hazardous situation which, if not avoided,
could result in serious injury or death.
Safety Messages
Follow all standard industry procedures for servicing electrical and computer equipment when working with or
around high voltage. Always shut off the power supply
before touching any components. Although high voltage
is not present in this system, it may be present in other
systems.
Electrical components are sensitive to electrostatic discharge. To prevent equipment damage, observe safety
procedures when working with electrostatic sensitive
components.
WARNING Explosion hazard. Do not connect or
disconnect designs rated Explosion-proof or Non-incendive unless power has been switched off and/or the area is
known to be non-hazardous
Notice of Copyright and Limitations
Magnetrol & Magnetrol logotype, and Echotel are registered trademarks of Magnetrol International.
Copyright © 2010 Magnetrol International, Incorporated
All rights reserved.
Performance specifications are effective with date of issue
and are subject to change without notice. Magnetrol
reserves the right to make changes to the product
described in this manual at any time without notice.
Magnetrol makes no warranty with respect to the accuracy
of the information in this manual.
Warranty
All Magnetrol electronic level and flow controls are warranted free of defects in materials or workmanship for one
full year from the date of original factory shipment.
If returned within the warranty period; and, upon factory
inspection of the control, the cause of the claim is determined to be covered under the warranty; then, Magnetrol
will repair or replace the control at no cost to the purchaser (or owner) other than transportation.
Magnetrol shall not be liable for misapplication, labor
claims, direct or consequential damage or expense arising
from the installation or use of equipment. There are no
other warranties expressed or implied, except special written warranties covering some Magnetrol products.
Quality Assurance
The quality assurance system in place at Magnetrol
guarantees the highest level of quality throughout the
company. Magnetrol is committed to providing full
customer satisfaction both in quality products and
quality service.
Magnetrol’s quality assurance system is
registered to ISO 9001 affirming its
commitment to known international
quality standards providing the strongest
assurance of product/service quality
available.
Low Voltage Directive
For use in Installations Category II, Pollution Degree 2.
If equipment is used in a manner not specified by the
manufacturer, protection provided by equipment may be
impaired.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
Echotel® Model 344/345
Ultrasonic Non-contact Transmitters
Table of Contents
1.0 Installation
1.1 Unpacking ................................................................4
1.2 Mounting..................................................................4
1.2.1 Transmitter Location ......................................4
1.2.2 Transducer Location.......................................4
1.3 Transmitter Mounting Procedure ..............................5
1.4 Transducer Mounting Requirements .........................6
1.4.1 Mounting 3⁄4" or 2" NPT Transducer
with Factory-Supplied Bracket,
Without Transducer Housing .........................7
1.4.2 Mounting 3⁄4" or 2" NPT Transducer
with Factory-Supplied Bracket and
Transducer Housing .......................................8
1.4.3 Mounting 3⁄4", 1" or 2" NPT Transducer
with Flange, With or Without
Transducer Housing .......................................9
2.0 Wiring
2.1 Electrostatic Discharge (ESD) Handling Procedure.10
2.2 Transmitter Power Wiring.......................................11
2.3 Transducer Wiring ..................................................11
2.3.1 Without a Transducer Housing.....................12
2.3.2 With a Transducer Housing ..........................13
2.4 Relay Output Wiring ..............................................14
2.5 Output Signal Wiring .............................................14
2.6 RS-232 Output.......................................................15
2.7 Transducer Synchronization ....................................15
3.0 General Information
3.1 Menus .....................................................................16
3.2 Passwords ................................................................16
3.2.1 General Password ..........................................16
3.2.2 Supervisory Password ....................................16
3.3 Operator Keypad.....................................................17
4.0 Unit Configuration
4.1 Complete Menu Structure ......................................18
4.2 Measured Values......................................................19
4.2.1 View Data Log .............................................19
4.3 System Configuration .............................................20
4.3.1 Level Measurement.......................................20
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
4.3.2 Volume and Level Measurement...................22
4.3.2.1 Custom Table Entry ..............................25
4.3.3 Flow and Level Measurement .......................26
4.3.3.1 Custom Table Entry ..............................28
4.4 I/O Configuration ..................................................29
4.4.1 Relay Settings ...............................................29
4.4.1.1 Relay #1-normal operation....................29
4.4.1.2 Relay #2-normal operation
or lead/lag pump control.......................30
4.4.1.3 Relay #3-normal operation
or fault detection...................................31
4.4.1.4 Relay #4-normal operation
or sampler .............................................32
4.4.2 4–20 mA Settings.........................................33
4.4.3 Totalizer (Flow Mode only) ..........................33
4.5 Advanced Configuration .........................................34
4.6 Diagnostics Menu ...................................................38
4.7 Laptop Menu ..........................................................39
5.0 Reference Information
5.1 Description .............................................................39
5.2 Theory of Operation...............................................39
5.3 Troubleshooting ......................................................40
5.3.1 Troubleshooting System Problems................41
5.3.2 Troubleshooting Flow Chart ........................43
5.4 Agency Approvals....................................................44
5.5 Specifications ..........................................................45
5.5.1 Transmiter ....................................................45
5.5.2 Transducer....................................................45
5.5.3 Physical ........................................................46
5.6 Replacement Parts...................................................48
5.7 Measurement Range Calculations ...........................50
5.8 Model Numbers......................................................52
5.8.1 Transmitter...................................................52
5.8.2 Model 384 38 kHz Transducer.....................52
5.8.3 Model 385 50 kHz Transducer.....................53
5.8.4 Connecting Cable ........................................54
1.0
Installation
Caution: Read entire section prior to starting installation.
1.1
Unpacking
Unpack the instrument carefully. Make sure all components
have been removed from the packing material. Inspect all
components for damage. Check the contents of the packing
slip and report any discrepancies to the factory. Check the
nameplate model number to be sure it agrees with the packing slip and purchase order. Check and record the serial
number for future reference when ordering parts.
Model Number
Serial Number
1.2
Mounting
1.2.1 Transmitter Location
The transmitter enclosure should be securely fastened to an
appropriate supporting structure, in a location that permits
easy access for maintenance. Avoid locations that are
exposed to direct sunlight, flooding, high levels of radiated
electromagnetic interference, and excessive vibration or
shock.
1.2.2 Transducer Location
Sunshade
Figure 1
Transducer Sunshade
Model 384/385 transducers must be mounted directly over
the material to be measured. Both floor and wall mount
transducer brackets are available for use over open tanks or
channels. Flange mounts are available for use with closed
vessels. If mounted in a location where there is intense,
extreme, direct sunlight, a sunshade is recommended.
Proper mounting and wiring of the ultrasonic transducer is
of the utmost importance. Both the accuracy and the reliability of the Model 344/345 can be adversely affected if the
transducer is mounted improperly.
NOTE: The 344/345 requires a blocking distance between the transducer and the maximum liquid level. The minimum blocking
distance is 12 inches (305 mm) for Model 345 and 18 inches
(460 mm) for Model 344. At temperatures above +140° F
(+60° C) minimum, it is 18 inches for either model. Maximum
blocking distance should be limited to approximately 10 feet
(3 m) as this blocking distance is extended at the expense of
the useful span over which the instrument operates.
4
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
Transducer
Air
Blocking Distance*
Model 345
25 feet (7.6 m)
maximum
Model 345
24 feet (7.3 m)
maximum
Range
Model 344
35 feet (10.7 m)
maximum
Span
Liquid
Model 344
33.5 feet (10.2 m)
maximum
*Minimum Blocking Distance:
18 inches (460 mm) for the Model 344
12 inches (305 mm) for the Model 345
Figure 2
Transducer Mounting Location–Level/Volume
1.3
Transmitter Mounting Procedure
There are two predrilled openings in the enclosure for
connecting 3⁄4" NEMA 4X conduit. Refer to Figure 3.
1. Open the door of the unit.
2. Drill holes in the enclosure as required for additional
wiring. Be careful not to damage the printed circuit boards.
Be sure that the PC boards are not damaged or contaminated
when removing filings and/or debris from the housing.
Figure 3
Predrilled Conduit Openings
3. Provide watertight seals for all wiring entrances in the enclosure to maintain the NEMA 4X rating.
4. Mount the enclosure to a wall or flat surface using the
appropriate screws or bolts. The mounting tabs on the back
of the enclosure can be rotated to the sides, or top and bottom to facilitate mounting. Refer to Figure 4.
5. Install conduit for power and control wiring. Be sure all
connections to the enclosure maintain a NEMA 4X rating.
6. Close the door until it is time to wire the transmitter.
Secure the door by tightening the six screws. Proceed to
Transducer Mounting on the next page.
NOTE: Do not overtighten the screws that hold the transmitter door
closed. Do not use an electric or pneumatic drive on the screw.
Overtightening can cause cracking of the housing, resulting in
leakage into the housing.
Figure 4
Transmitter Mounting Tabs
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
5
1.4
Transducer Mounting Requirements
1. Whenever possible, locate the transducer to avoid obstructions between the transducer face and the surface of the
level being tracked. The ultrasonic signal is emitted from
the transducer with a beam spread of approximately
12 degrees. Objects that extend into the ultrasonic beam
can produce echoes that mask the true level. The false target
buffering feature allows for blocking out up to nine
obstructions inside the tank.
Ultrasonic Beam Angle
12° beam
Figure 5
Ultrasonic Beam Angle
Distance from
Transducer Face
in feet
2'
4'
6'
8'
10'
12'
14'
16'
18'
20'
22'
24'
26'
28'
30'
32'
35'
12° Beam
Diameter
in feet
0.42'
0.84'
1.25'
1.67'
2.1'
2.5'
2.9'
3.3'
3.76'
4.18'
4.6'
5.02'
5.44'
5.86'
6.28'
6.80'
7.44'
Minimum Distance
From Wall or
Obstruction in inches
2.52"
5.04"
7.5"
10.02"
12.6"
15"
17.4"
19.8"
22.56"
25.08"
27.6"
30.12"
32.64"
35.16"
37.68"
40.8"
44.64"
2. Position the transducer so that the radiating surface or
transducer face is exactly parallel to the measurement
surface. This will provide the strongest return signals and
enhance the reliability of the Model 344/345.
NPT
Pipe Stub
Maximum 11"
(280 mm) or less
Transducer
8" (200)
Minimum I.D.
This end welded
or flanged to tank
3. In applications where the material level may come into the
blocking distance or where the full tank height will be used,
the transducer must be mounted in a short pipe stub
(standpipe). The diameter of the standpipe should be at
least 8 inches (200 mm) and its length should be limited to
11 inches (280 mm) from transducer face. Refer to Figure 6.
NOTE: When mounting in a standpipe, performance is
enhanced by using as short of a pipe as possible.
Figure 6
Transducer Mounting in Standpipe
6
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
4. Avoid installing the transducer in tank top openings that
exhaust heated air or vapors. The boundaries between the
vapors and the outside air often represent acoustic impedance gradients that can cause troublesome sound reflections.
In those installations, the transducer should be mounted
well away from the opening inside the tank, or in a pipe
stub. Refer to Figures 6 and 7.
5. To prevent electromagnetic noise from disrupting the normal operation of the Model 344/345, it is recommended
that each transducer cable be run in its own conduit, separated from other power cables and wiring.
Figure 7
Transducer Mounting for Tanks With Exhaust
6. Locate the mounting procedure from the chart below and
proceed to the appropriate instructions.
NPT
Mounting
Housing
Section
⁄4" or 2"
2"
3
⁄4", 1", or 2"
3
⁄4" or 2"
bracket
bracket
flange
flange
without
with
without
with
1.4.1
1.4.2
1.4.3
1.4.3
3
Caution: Do not install transducers in the center of domed roof
tanks. Locate transducers 1' to 3' off center to minimize
false/multiple echoes being reflected off the domed roof.
Conduit
NPT
Threaded
Mounting
Connection
1.4.1 Mounting 3⁄4" NPT or 2" NPT Transducer with FactorySupplied Bracket, Without Transducer Housing
1. Position the bracket such that the transducer mounting
hole is positioned over the open tank or channel.
Refer to Figure 8.
Transducer
2. Secure the bracket to the wall, floor, or vessel as appropriate
with four 3⁄8" screws. Refer to the mounting hole pattern as
shown in the dimensional drawings in Section 5.5.3.
Wall Mount Bracket
Tank Wall
3. Pull transducer cable through mounting bracket and handtighten transducer into fitting in mounting bracket.
Figure 8
Caution: HAND-TIGHTEN ONLY. DO NOT use a pipe wrench or
other tools when tightening the transducer. Use Teflon®
tape on thread for 316 stainless steel transducer. Avoid
excessive twisting of the transducer cable.
4. Provide conduit from the transducer to the transmitter
enclosure. Carefully pull the transducer cable through the
conduit toward the transmitter enclosure. This cable will be
connected as shown in Section 2.3.1, Transducer Wiring
Without Transducer Housing.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
7
Transducer Cable
Conduit
5. Tighten the conduit to the threads on the top of the transducer. Refer to Figure 9.
NOTE: In high humidity applications, it is recommended that the
transducer wiring be completely immersed in an insulating
compound where the conduit connects to the transducer
(3M™ #4441 Gella™ Reenterable Encapsulant or equivalent).
6. Proceed to Section 2.0, Wiring.
Mounting
Bracket
Transducer
Figure 9
Conduit
1. Position the bracket such that the transducer mounting
hole is positioned over the open tank or channel. Refer to
Figure 10.
Threaded
Mounting
Connection
2. Secure the bracket to the wall, floor, or vessel as appropriate
with four 3⁄8" screws. Refer to the mounting hole pattern as
shown in the dimensional drawings in Section 5.5.3.
Transducer
3. Mount transducer into the 2" NPT hole in bracket and
hand-tighten.
Transducer Housing
Caution: HAND-TIGHTEN ONLY. DO NOT use a pipe wrench or
other tools when tightening the transducer. Use Teflon®
tape on thread for 316 stainless steel transducer. Avoid
excessive twisting of the transducer cable.
Wall Mount Bracket
Tank Wall
Figure 10
Transducer Cable
4. Provide conduit from the transducer to the transmitter
enclosure. Carefully pull the transducer cable through the
conduit toward the transmitter enclosure. Refer to
Figure 11. This cable will be connected as shown in
Section 2.3.2, Transducer Wiring With Transducer Housing.
Conduit
Transducer
Housing
Mounting
Bracket
Transducer
Figure 11
8
1.4.2 Mounting 2" NPT Transducer with Factory-Supplied
Bracket and Transducer Housing
NOTE: In high humidity applications, it is recommended that the
transducer wiring be completely immersed in an insulating
compound where the conduit connects to the transducer
(3M™ #4441 Gella™ Reenterable Encapsulant or equivalent).
5. Tighten the conduit at the 3⁄4"connection on the transducer
housing.
6. Proceed to Section 2.0, Wiring.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
1.4.3 Mounting 3⁄4", 1", or 2" NPT Transducer with Flange,
With or Without Transducer Housing
Flange
1. Position transducer over the tank port. Bolt the transducer
flange to the tank port flange. Refer to Figure 12.
Transducer
Air
2. Hand-tighten transducer into flange.
Caution: HAND-TIGHTEN ONLY. DO NOT use a pipe wrench or
other tools when tightening the transducer. Use Teflon®
tape on thread for 316 stainless steel transducer. Avoid
excessive twisting of the transducer cable.
Liquid
3. Install conduit from the 3⁄4" NPT 316 SS nipple on transducer to the transmitter enclosure. For transducers with
transducer housing, conduit is connected to the 3⁄4" NPT
housing conduit connection.
Figure 12
4. Carefully pull the connecting cable through the conduit to
the transmitter. Refer to Figure 13. This cable will be connected as shown in the Transducer Wiring section.
Conduit
Transducer Cable
Bolts
Transducer
Flange
NOTE: In high humidity applications, it is recommended that the
transducer wiring be completely immersed in an insulating
compound where the conduit connects to the transducer
(3M™ #4441 Gella™ Reenterable Encapsulant or equivalent).
5. Proceed to Section 2.0, Wiring.
User
Flange
Transducer
Figure 13
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
9
2.0
Wiring
2.1
Electrostatic Discharge (ESD)
Handling Procedure
•
•
•
•
10
Magnetrol’s electronic instruments are manufactured to the
highest quality standards. These instruments utilize electronic components which may be damaged by static electricity present in most work environments. The following
steps are recommended to reduce the risk of component
failure due to electrostatic discharge:
Ship and store circuit boards in anti-static bags. If an antistatic bag is not available, wrap board in aluminum foil. Do
not place boards on foam packing materials.
Use a grounding wrist strap when installing and removing
circuit boards. A grounded workstation is also recommended.
Handle printed circuit boards only by the edges. Do not
touch components or connector pins.
Make sure that all electrical connections are completely
made and none are partial or floating. Ground all equipment to a good, earth ground.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
2.2
(+)
(–)
NOTE: Models 344 and 345 have the same motherboard (P/N
030-3564-00X), but have unique daughter boards. The 345
uses a daughter board (P/N 030-3565-001) that drives the
50 kHz Model 385-XXXX-XXX transducer, and the 344 uses a
daughter board (P/N 030-3573-001) that drives the 38 kHz
Model 384-XXXX-XXX transducer.
+
Totalizer
-
Heater
TB5
L1
L2/N GND
(+)
(-)
LOOP 4-20
TB1
Power Supply
Caution: DO NOT attempt to operate this unit at voltages other
than as specified from the Model Identification as it will
damage the unit.
Loop 4–20
Figure 14
344/345 Motherboard
(shown with daughterboard removed)
Caution: This instrument is grounded through the grounding connector of terminal block TB1. The power input must
include a ground wire connected to a good earth ground.
Failure to ground the instrument may allow a shock
hazard to exist!
Wiring Colors By Country/Continent
Line 1 (Hot)
Transmitter Power Wiring
U.S.
Europe
U.K.
Black
Blue
Brown
Line 2 (Neutral)
White
Black
Blue
Ground
Green/Yellow
Green/Yellow
Green/Yellow
1. Open the cover of the transmitter enclosure by loosening
the six screws.
2. The PC board is marked for 120/240 VAC (L1, L2/N, GND)
and 24 VDC (+,–) power connections. Ensure proper connections are made on the six position terminal block TB1.
Refer to Figure 14. Spade lugs should be used. For optimum operator safety, observe the wiring colors listed in
the chart at left.
3. To prevent electromagnetic noise from disrupting the
normal operation of the Model 344/345, the ground (GND)
should be connected to a good earth ground with as short
a length as possible of heavy wire or copper braid.
4. Proceed to the appropriate transducer wiring section.
NOTE: Stainless steel transducers are shipped with a protective rubber cap over the transducer face. Remove this cap after
mounting is complete.
2.3
Transducer Wiring
Caution: Do not run transducer cable in the same conduit with
power, signal, or other transducer cables.
The transducer cable consists of two twisted pairs of wire
wrapped with a shield. Refer to Figure 15 for wire identification.
NOTE: It is imperative that Magnetrol cable part number 037-3176
(Belden Type 8102) be used. If connecting cable was not provided with unit, consult factory for specifications. Maximum
total cable length is 500 feet (152 m). AVOID SPLICING CABLE.
If a 316 stainless steel transducer is used, connect the green
ground wire to an earth ground (i.e. conduit, tank, etc). If a junction box is used, connect earth ground to green terminal screw.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
11
After running the transducer wiring in its own conduit from
the transducer to the transmitter, separate the wires into two
groups;
Group 1 - Ultrasonic signal wiring (orange/white pair)
Group 2 - Temperature compensation wiring
(blue/white pair)
2.3.1 Transducer Wiring Without Transducer Housing
The following instructions are intended for use when the
transducer is provided without a transducer housing. There
will be 35 feet (10.7 meters) of potted cable coming out of
the transducer. This cable can be shortened as desired to
accommodate the installation.
Group 1 (Ultrasonic Signal)
1. Connect the orange w/white stripe wire to the terminal
marked (X1) at TB6.
2. Connect the shield wire to the middle terminal at TB6.
3. Connect the white w/orange stripe wire to the terminal
marked (X2) at TB6.
Group 2 (Temperature Signal)
1. Connect the white w/blue stripe wire to the terminal
labeled positive (+) at TB7.
Daughterboard
2. Connect the blue w/white stripe wire to the terminal
labeled negative (-) at TB7.
NOTE: Both groups of wire (Ultrasonic and Temperature) must be
connected.
TB6
X2 SH X1
TB7
– +
TB6
TB7
NOTE: Overall cable jacket and individual
wire jackets should be cut as short as
possible. This illustration is intended
for wiring termination clarity only.
Ultrasonic
Transducer
Figure 15
Wiring without Transducer Housing
12
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
2.3.2 Transducer Wiring with a Transducer Housing
The following instructions are intended for use when a
transducer housing has been provided. This housing is
threaded onto the top of the transducer via a 3⁄4" NPT
316 SS nipple. A board inside the housing is used to
terminate the transducer cabling.
NOTE: If cable was not provided by Magnetrol, Beldon 8102 or equivalent must be used.
Group 1 (Ultrasonic Signal)
1. Connect the orange w/white stripe wire from the transducer
housing terminal marked (X1) to the terminal inside the
transmitter marked (X1) at TB6 on the daughterboard.
2. Connect the shield from the transducer housing terminal
marked (SHLD) to the middle terminal at TB6 on the
daughterboard.
3. Connect the white w/orange stripe wire from the transducer
housing terminal marked X2 (GND) to the terminal
marked (X2) at TB6 on the daughterboard.
Group 2 (Temperature Signal)
1. Connect the white w/blue stripe wire of the twisted pair
from the transducer housing terminal marked (+) to the
terminal labeled positive (+) at TB7 on the daughterboard.
2. Connect the blue w/white stripe wire of the twisted pair
from the transducer housing terminal marked (-) to the
terminal labeled negative (-) at TB7 on the daughterboard.
SHLD
Daughterboard
TRANSDUCER
X1 X2 SH
+-
TEMPERATURE
SENSOR
SHLD
Orange with white stripe
TB6
SHLD
White w/orange stripe
TB6
White with blue stripe
TB7
Blue with white stripe
TB7
Figure 16
Wiring with Transducer Housing
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
13
Relay Output Wiring
RS232
The 344/345 unit is supplied with 4 relays that can operate
as normal independent contact closures or can be used as
dedicated relays as follows:
TB3
NC CO NO
RELAY #1
0
NC
CO NO
RELAY #4
Relay 1 Normal
Relay 2 Normal or Lead/Lag Pump Alternation (with Relay 1)
Relay 3 Normal or Dedicated Fault
NC CO NO
RELAY #3
TB4
RS485
TB2
T
2.4
Relay 4 Normal or Sampler Contact
Relay connections are supplied on the motherboard as
shown in Figure 17.
NC
CO NO
RELAY #2
1. Two-wire leads are connected to the desired relay terminal
block. Connect one wire to the common terminal (labeled
CO), and the other to the terminal for the desired
contact function—(NC) for normally closed or (NO) for
normally open. Repeat this step for each relay.
Figure 17
344/345 Motherboard
2. Refer to Relay Settings in the I/O Configuration section
for information on configuring the relays.
NOTE: If the device to be operated by the relay has an inductive load,
a separate power supply should be used for the electronics.
2.5
Output Signal Wiring
+
The 4–20 mA DC output connections can be made at terminal block TB1, located inside the transmitter housing.
Refer to Figure 18. The loop is optically isolated, has nongrounded outputs, and can drive a 1000-ohm load.
TOT.
+
1. Connect the positive (+) shielded twisted pair wire from the
load to terminal LOOP (+).
(TOTALIZER)
-
2. Connect the negative (-) shielded twisted pair wire from the
load to terminal LOOP (-).
TB1
HEAT
(HEATER)
TB5
L1 (+)
GND
L2/N (-)
(+)
(-)
LOOP 4-20
NC
RE
NOTE: The shield should be connected to an earth ground at only one
location.
Figure 18
344/345 Motherboard
14
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
2.6
DB 25F Connector
(Laptop)
TB2
(344/345 Transmitter)
NOTE: The RS-232 output is only used for downloading information
from the optional 31-day data logger.
7
3
TX
2
RX
RS-232 Output
RS-232 output connection is located at TB2 and labeled
TX and RX. Refer to Figure 19.
This connection for the RS-232 is utilized for the hook-up
of a laptop computer. In the laptop mode, one can download stored data if unit is equipped with the data logging
option.
Figure 19
The cable to connect the laptop computer to the Model
344/345 must be supplied by the user. Configure this cable
as shown in Figure 19. Downloading instructions are in the
Laptop Section on page 39.
2.7
Transducer Synchronization
Transducer synchronization is only available with the Model
344 unit. It allows you to run the cabling from multiple
Model 384 transducers in the same conduit. This prevents
the possibility for crosstalk to occur from one Model 344 to
another. The synchronization scheme involves the use of
one 344 unit operating as a master, and one or more other
units operating as slaves.
SYNC. IN
SYNC. OUT
GR. REF.
Multiple Model 344 units should be wired together utilizing
TB8 (Figure 20) on the daughterboard as shown in Figure 21
below. The master unit synchronizes the ultrasonic signals
such that all units transmit their ultrasonic signals at the
same time. This eliminates the possibility of cross talk
occurring. No calibration or configuration is necessary other
than the wiring shown below.
Figure 20
(344 Daughterboard)
Synchronization Terminal Block – TB8
SYNC. IN
SYNC. IN
GR. REF.
GR. REF.
SYNC. OUT
GR. REF.
MASTER UNIT
SLAVE UNIT
SLAVE UNIT
Figure 21
Synchronization Wiring Diagram
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
15
3.0
General Information
3.1
Menus
The Model 344/345 transmitter contains a microprocessorbased operator interface which allows for easy configuration
of level, volume, or open channel flow applications. All configuration data is entered via a keypad located on the front
of the unit.
User interface and configuration instructions are broken
down into six main groups of menus:
MEASURED VALUES
To view measured values
SYSTEM CONFIG
Basic programming information required for system
operation.
I/O CONFIG
Configure input/output functions
ADVANCED CONFIG
Additional values that affect the performance and
functionality of the transmitter
DIAGNOSTICS
Test functions and system diagnostic information
LAPTOP
Download data logging to laptop computer (with
optional Data Logger only)
3.2
Passwords
Caution: The Model 344/345 is shipped from the factory with the
password set at 0341. If the password is misplaced or
forgotten, consult the factory for assistance.
The Model 344/345 has two types of passwords that can be
used to protect configuration parameters. They are as follows:
3.2.1 General Password
The General Password (PASSWORD) is used for the System
Config and the I/O Config portion of the Menu Structure.
When a change is made to parameters in these menus (i.e.,
range, span, 4–20 mA, relays, etc.), the Model 344/345 will
prompt the operator to enter a password. This password can
be any one- to six-digit numeric combination.
3.2.2 Supervisory Password
The Supervisory Password (SUP PSWD) is used for the
Advanced Config portion of the Menu Structure. This
password is used to protect values that can affect the
performance and/or accuracy of the device.
NOTE: Although the Supervisory Password is normally used in the
Advanced Config menu, this password can also be used in any
portion of the menu. The Supervisory Password overrides the
General Password.
16
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
The Passwords can be changed at any time via the
Advanced Config mode.
If an invalid password is entered, the display will read
Password Invalid. By pressing
twice, the unit will
continue to operate with the previously-programmed
parameters.
Password
Sup Pass
3.3
Operator Keypad
All Unit Configuration instructions in this manual will
show the local transmitter display exactly as it will appear
to the operator.
The operator interface to the 344/345 is via a keypad
consisting of the following keys:
For numeric entry of parameters.
For decimal-point entries.
To exit any programming area and return to
a measurement mode.
For entering new parameter values into
memory. Also used to exit the parameter
entry mode, if pressed prior to entering
numeric parameter values.
To sequentially access other parameters.
Parameters may also be skipped over
without affecting their stored values. The
DOWN arrow also acts as a backspace for
correcting data entry errors.
Helpful when entering a new tag in the
Enter Tag section of the Advanced
Configuration menu.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
17
4.0
Unit Configuration
4.1
Complete Menu Structure
Volume (Volume mode only)
Flow (Flow mode only)
Totalizer (Flow mode only)
Level
Measured Values
Distance
Loop
Range Setting
Calculation
Span Setting
Temperature
Previous Menu
View Data Log
Previous Menu
System Configuration
Vessel Type
Level Units
Level Only
Mode Setup
Volume & Level
Flow & Level
Relay Settings
4–20 mA Settings
I/O Configuration
Volume Units
Range Setting
Maximum Volume
Span Setting
Previous Menu
Totalizer (Flow mode only)
Comm Port Setup
Flow Element
Previous Menu
Flow Units
Reference Distance
Temperature
Maximum Flow
Calibrate
Maximum Head
Gain Limit
Low Flow Cutoff
Dampening
Previous Menu
False Targets
Advanced Configuration
Set Clock
Enter Tag
Default Display
Calculation
Change Password
Change Sup Password
Previous Menu
Test Relays
Test 4–20 mA Loop
Diagnostics
Signal Strength
View Version #
Extended Errors
Previous Menu
Laptop
STRT ____
END ____
QUIT
18
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
4.2
Measured Values
The Measured Values Menu contains read-only data that is
presently being measured by the Model 344/345 transmitter.
Press
from the default display to access the Measured
Values menu. “Measured Values” along with the Up/Down
arrows will be displayed.
To view the Measured Values, press
at the Measured
Values display. “Level” will be displayed if level mode has
been selected. “Volume” will be displayed if volume mode
has been selected. “Flow” will be displayed if flow mode has
been selected.
To view the Present Measurement: Press . After reviewing,
press
to return to Level, Volume (Volume Mode Only)
or Flow (Flow Mode Only). To scroll down to the next
Measured Value: Press
. Pressing the
scrolls up the
menu. Press
at any measured value that you wish to
review.
If you do not wish to view the measured values at this time,
press
once if in a main menu mode or twice if in a value
read mode from anywhere in the display and the unit will
return to the default display, or press
at Previous Menu
display, and the unit will return to Measured Values.
4.2.1 View Data Log
If the 344/345 transmitter was ordered with the Data
Logger option, the View Data Log screen allows for storage
of up to 31 days of the following measurement data.
Level
Minimum and maximum level and time of occurrence
each day.
Volume and Level
Minimum and maximum volume and time of occurrence
each day.
Flow and Level
Minimum and maximum flow and time of occurrence each
day and total flow for that day.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
19
4.3
System Configuration
This menu is used to configure the main control parameters of the Model 344/345. This is also used for first-time
configuration of the unit.
Once in the System Configuration Menu, you may scroll
through the selections by using
or
arrow. Once the
desired selection is displayed, press . The unit is capable
of being configured in three different modes of operation.
• Level Only
• Volume & Level
• Flow & Level
4.3.1 Level Measurement
NOTE: The 344/345 has a default range setting of 144 inches
programmed into the software. If the transducer is installed
in the application and the distance from the transducer face
is further away than 144 inches, the display will read
Loss of Echo. The range setting will have to be adjusted at this
point in order to clear the loss of echo error.
1. Press
to display Measured Values.
2. Press
to display System Config.
3. Press
to display Level Units.
4. Press
then
selection.
5. Press
or
to make your units of measure
to display Mode Setup.
NOTE: If your selection is different from the previous selection, the
display will ask for a password. At any point PASSWORD? is
displayed, key in 0341, and press
.
6. Press
WARNING
7. Press
to display Level Only.
Changing the Mode Setup WILL erase ALL settings
if the 344/345 has been previously configured!
Confirm change by pressing . Key in your password if Password? is displayed.
to display Range Setting.
NOTE: Range setting is the measured distance from the transducer
face to the lowest point of measurement or the zero level
point in the vessel.
20
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
Transducer
Air
Blocking Distance*
Model 345
25 feet (7.6 m)
maximum
Model 345
24 feet (7.3 m)
maximum
Range
Model 344
35 feet (10.7 m)
maximum
Span
Model 344
33.5 feet (10.2 m)
maximum
Liquid
*Minimum Blocking Distance:
18 inches (460 mm) for the Model 344
12 inches (305 mm) for the Model 345
Figure 22
8. Press
.
or
toggles between manual set or auto set.
NOTE: Manual Set is the preferred mode.
Manual Set Mode allows direct entry of the Range value. Enter
the distance from the transduer face to the zero level point or
bottom of the vessel. Auto Set Mode is only used if the vessel
dimensions are unknown. Liquid level must be brought down to
zero point in the vessel prior to pressing
to automatically set
the Range value.
9. Press
10. Press
, key in Rng value.
to display Span Setting.
NOTE: The Span Setting is the distance from the lowest point or zero
to the maximum anticipated distance that the level will rise in
the tank, without entering the blocking distance of the transducer. Typically, Span is the difference between the Range and
the blocking distance.
11. Press
to display Manual Set.
NOTE: The user can toggle between Manual Set and Auto Set like the
range setting scheme. In the auto mode, be certain that the
level is at its absolute maximum in the tank otherwise loss of
echo may occur.
12. Press
, key in Spn value.
Caution: If the actual level falls below the maximum range of the unit,
the fail-safe selection must be set up so that the desired
output is transmitted. When the level falls below the programmed range, the display will show Loss of Echo. If this
condition occurs, the fail-safe actions will take place.
WARNING: If level exceeds the programmed span, false display or
output/control errors will occur. Transducer should be
installed and unit programmed to assure that this level
cannot occur.
13. Press
to display Previous Menu
14. Press
to display System Config.
15. Press
once to display I/O Config.
System Configuration is now complete. Proceed to I/O
Configuration, Section 4.4.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
21
4.3.2 Volume and Level Measurement
This menu is used to configure the parameters of the Model
344/345 for Volume and Level Measurement.
Once in the System Config menu, you may scroll through
the selections by using
or . Once the desired selection
is displayed, press . The unit is capable of being configured in three different modes of operation.
• Level Only
• Volume & Level
• Flow & Level
1. Press
to display Measured Values.
2. Press
to display System Config.
3. Press
to display Level Units.
4. Press
then
selection.
5. Press
or
to make your units of measure
to display Mode Setup.
NOTE: If your selection is different from the previous selection, the
display will ask for a password. At any point if PASSWORD? is
displayed, key in 0341, and press the
key.
6. Press
WARNING
7. Press
then
or
until Volume & Level is displayed.
Changing the Mode Setup WILL erase ALL settings
if the 344/345 has been previously configured!
Confirm change by pressing . Key in your password if Password? is displayed.
to display Vessel Type.
8. Press
then
selections.
or
to scroll through vessel type
Horiz/Flat
Horiz/Elipp.
Horiz/Sphere
Verti/Flat
Verti/Conical
Spherical
Custom Table (refer to Section 4.3.2.1)
22
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
9. Press
10. Press
Horizontal/Flat
Rad
Length
side view
then key in prompted values.
Rad__.
Radius
End__.
Len__.
Ht__.
Con__.
End Radius (enter value of one end of vessel)
11. Press
Horizontal/Elliptical
to select your vessel type.
Length
Height
Cone
to display Password?. Key in password.
12. Press . The display reads Processing.... and then
Volume Units.
Rad
Length
side view
13. Press
then
or
to scroll through volume units
selections.
Cubic Feet
Gallons
Million Gallons
Cubic Meters
Liters
Million Liters
Petroleum Barrel
End
Horizontal/Spherical
Rad
Length
side view
Vertical/Flat
14. Press
to select units.
Rad
15. Press
to display Range Setting.
Height
top view
NOTE: Range setting is the measured distance from the transducer
face to the lowest point of measurement or zero.
16. Press
then
auto set.
Vertical/Conical
Rad
Height
top view
Cone
Rad
Figure 23
to toggle between manual set or
NOTE: Manual Set is the preferred mode.
Manual Set Mode allows direct entry of the Range value. Enter
the distance from the transduer face to the zero level point or
bottom of the vessel. Auto Set Mode is only used if the vessel
dimensions are unknown. Liquid level must be brought down to
zero point in the vessel prior to pressing
to automatically set
the Range value.
Spherical
Vessel Types
or
17. Press
, key in Rng value.
18. Press
to display Maximum Volume.
19. Press
key in Max value.
20. Press
to display Span Setting
NOTE: The Span Setting is the distance from the lowest point or zero
to the maximum anticipated distance that the level will rise in
the tank, without entering the blocking distance of the transducer. Typically, Span is the difference between the Range and
the blocking distance.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
23
21. Press
to display Manual Set.
NOTE: The user can toggle between Manual Set and Auto Set. In the
Auto Set mode, be certain that the level is at its absolute maximum in the tank otherwise loss of echo may occur.
22. Press
, key in Spn value.
Caution: If the actual level falls below the maximum range of the
unit, the fail-safe selection must be set up so that the
desired output is transmitted. When the level falls below
the programmed range, the display will show Loss of
Echo. If this condition occurs, the fail-safe actions will
take place.
WARNING: If level exceeds the programmed span, false display or
output/control errors will occur. Transducer should be
installed and unit programmed to assure that this level
cannot occur.
23. Press
to display Previous Menu
24. Press
to display System Config.
25. Press
once to display I/O Config.
System Configuration is now complete. Proceed to I/O
Configuration, Section 4.4.
24
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
Points
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Level %
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
% of
Volume
0.00
3.60
5.58
7.55
9.51
11.48
13.44
15.41
17.37
19.34
21.31
23.28
25.25
27.21
29.18
31.15
33.11
35.08
37.05
39.02
40.98
42.95
44.92
46.89
48.85
50.82
52.79
54.75
56.72
58.69
60.66
62.62
64.58
66.56
68.51
70.49
72.44
74.42
76.39
78.36
80.33
82.30
84.26
86.23
88.20
90.16
92.13
94.10
96.06
98.03
100.00
4.3.2.1 Custom Table Entry
1. If Custom Table is selected at step 8, Press
Table Name.
to display
2. Press
to designate a Table Name. Press
to start the
first character scrolling. If a faster scrolling speed is desired,
press
again. Press
to stop at a character. Use
or
to single-step to a desired character.
3. Press
once again to proceed to the next character. For
the balance of the Table Name, perform the same steps as
stated above. A maximum of 13 characters can be used.
4. When completed, press
5. Press
to display Max Table Span.
and key in Max value in the chosen level units.
6. Press
to display Max Table Value. Key in the maximum
value in the chosen volume units. (For example: if the value
for 100% of volume in the table was 5,500 gallons, enter
5500.)
7. Press
to display Table Units. These are the table volume
units. Press
to start the first character scrolling. If a faster
scrolling speed is desired, press
again. Press
to stop at
a character. Use
or
to single step to a desired character.
8. Press
once again to proceed to the next character. For
the balance of the table units, perform the same steps as
stated above. A maximum of 3 characters can be used.
9. When completed, press
10. Press
to display Enter Table Pts.
to display 00%; 0.
11. Enter percent of volume for each percent of level displayed
in 2% steps. Table is complete after all 51 points are
entered. See Figure 24 at left for an example.
12. Press
to display Previous Menu.
13. Press
to display Volume Units. Press
and Operation
Denied will display because volume units have already been
entered.
14. Press
or
to display Range Setting.
15. Proceed with step 16, Section 4.3.2 on page 23.
Figure 24
Custom Table Example
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
25
Flow Element Menu
Vnotch
22.5°
30°
Vnotch
Vnotch
45°
Vnotch
60°
Vnotch
90°
Vnotch
120°
Parshall 1"
Parshall 2"
Parshall 3"
Parshall 6"
Parshall 9"
Parshall 12"
Parshall 18"
Parshall 24"
Parshall 36"
Parshall 48"
Parshall 60"
Parshall 72"
Parshall 96"
Parshall 120"
Parshall 144"
Rct/Cntr (Rectangular w/End Contractions)
Rectangular (Without End Contractions)
Cipolletti
Palmer-B 4" (Palmer-Bowlus)
Palmer-B 6"
Palmer-B 8"
Palmer-B 10"
Palmer-B 12"
Palmer-B 15"
Palmer-B 18"
Palmer-B 21"
Palmer-B 24"
Palmer-B 27"
Palmer-B 30"
H-Flume 6"
H-Flume 9"
H-Flume 12"
H-Flume 18"
H-Flume 24"
H-Flume 30"
H-Flume 36"
H-Flume 54"
I 12 Z (I-Flume)
I 30 Z
I 40 Z
I 50 Z
I 60 Z
I 80 Z
I 10 H
I 13 H
I 16 H
Custom Table
26
4.3.3 Flow and Level Measurement
This menu is used to configure the main control parameters
of the Model 344/345 for the Flow and Level Measurement.
Once in the System Config menu, you may scroll through
the selections by using
or . Once the desired selection
is displayed, press . The unit is capable of being configured in three different modes of operation.
• Level Only
• Volume & Level
• Flow & Level
1. Press
to display Measured Values.
2. Press
to display System Config.
3. Press
to display Level Units.
4. Press
then
selection.
5. Press
or
to make your units of measure
to display Mode Setup.
NOTE: If your selection is different from the previous selection, the display will ask for a password. If at any point PASSWORD? is displayed, key in 0341 and press the
key.
6. Press
WARNING
7. Press
then
or
Changing the Mode Setup WILL erase ALL settings
if the 344/345 has been previously configured!
Confirm change by pressing . Key in your password if Password? is displayed.
to display Flow Element.
8. Press
then
or
tions shown at left.
9. Press
10. Press
until Flow & Level is displayed.
to scroll through flow element selec-
to select your flow element.
to display Password?. Key in password.
11. Press . The display reads Processing.... and then
Flow Units.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
12. Press
then or to scroll through flow units selections.
Cubic Feet/Sec
Cubic Feet/Min
Cubic Feet/Hr
Gallons Per Min
Gallons Per Hour
Million Gals/Day
Cubic Meters/Sec
Cubic Meters/Min
Cubic Meters/Hr
Liters/Min
Liters/Hour
MegaLiters/Day
13. Press
to select units.
14. Press
to display Reference Dist.
NOTE: Reference distance is the measured distance from the transducer face to the lowest point of measurement or zero flow.
15. Press
then
Auto set.
or
to toggle between Manual or
NOTE: Manual Set is the preferred mode.
Manual Set Mode allows direct entry of the Reference
Distance. Enter the distance from the transduer face to the
point of zero flow in the flume or weir. Auto Set Mode is only
used if the flume or weir dimensions are unknown. Liquid Head
must be brought down exactly to the zero flow point prior to
pressing
to automatically set the Reference Distance value.
16. Press
, key in Reference Distance value.
17. Press
to display Maximum Flow.
18. Press
key in Max value.
19. Press
to display Maximum Head
20. Press
then
Auto set.
or
to toggle between Manual or
21. Press
key in Head value.
22. Press
to display Low Flow Cutoff.
23. Press
, key in Cut value.
24. Press
to display Previous Menu.
24. Press
to display System Config.
25. Press
once to display I/O Config.
System Configuration is now complete. Proceed to I/O
Configuration, Section 4.4.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
27
Points
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Head %
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
% of
Flow
0.00
3.60
5.58
7.55
9.51
11.48
13.44
15.41
17.37
19.34
21.31
23.28
25.25
27.21
29.18
31.15
33.11
35.08
37.05
39.02
40.98
42.95
44.92
46.89
48.85
50.82
52.79
54.75
56.72
58.69
60.66
62.62
64.58
66.56
68.51
70.49
72.44
74.42
76.39
78.36
80.33
82.30
84.26
86.23
88.20
90.16
92.13
94.10
96.06
98.03
100.00
4.3.3.1 Custom Table Entry
1. If Custom Table is selected at step 8, Press
Table Name.
to display
2. Press
to designate a Table Name. Press
to start the
first character scrolling. If a faster scrolling speed is desired,
press
again. Press
to stop at a character. Use
or
to single step to a desired character.
3. Press
once again to proceed to the next character. For
the balance of the Table Name, perform the same steps as
stated above. A maximum of 13 characters can be used.
4. When completed, press
5. Press
to display Max Table Span.
and key in Max value in the chosen level units.
6. Press
to display Max Table Value. Key in the maximum
value in the chosen flow units. (For example: if the value for
100% of flow in the table was 5,500 GPM, enter 5500.)
7. Press
to display Table Units. These are the table flow
units. Press
to start the first character scrolling. If a faster
scrolling speed is desired, press
again. Press
to stop at
a character. Use
or
to single step to a desired character.
8. Press
once again to proceed to the next character. For
the balance of the table units, perform the same steps as
stated above. A maximum of 3 characters can be used.
9. Press
to display Timebase. Use
or
to choose
Seconds, Minutes, Hours, or Days. This selection enables
the totalizer to function properly.
10. When completed, press
11. Press
to display Enter Table Pts.
to display 00%; 0.
12. Enter percent of flow for each percent of head displayed in
2% steps. Table is complete after all 51 points are entered.
See Figure 25 at left for an example.
13. Press
to display Previous Menu.
14. Press
to display Flow Units. Press
and Operation
Denied will display because flow units have already been
entered.
15. Press
or
to display Reference Distance.
16. Proceed with step 14, Section 4.3.3 on page 27.
Figure 25
Custom Table Example
28
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
4.4
I/O Configuration
This menu is used to configure relay settings, output, totalization, and communications parameters of the Model
344/345.
Once in the I/O Configuration menu, scroll through the
selections by using
or
arrow. Once the desired
selection is displayed, press .
4.4.1 Relay Settings
All relays can be configured for normal mode of action (i.e.,
pump control, high or low alarm) or for dedicated relays as
follows:
Relay 1- Normal
Relay 2- Normal or Lead/Lag Pump Alternation (with Relay 1)
Relay 3- Normal or Dedicated Fault
Relay 4- Normal or Sampler Contact
4.4.1.1 Relay #1 – normal operation
1. Press
to display Measured Values.
2. Press
to display System Config.
3. Press
to display I/O Config.
4. Press
to display Relay Settings.
5. Press
to display Relay #.
6. Key in , press
be displayed.
. The operating status of the relay will
NOTE: If relay number is entered in error, press
Relay Settings.
to return to
7. Press
or
to toggle between Disabled and Enabled.
With Enabled displayed, press
to display Setpoint.
NOTE: If in Flow or Volume mode, the unit will prompt to set relays in
Level or either Flow or Volume mode.
8. Press
, key in On value.
9. Press
, key in Off value.
NOTE: If keyed in On and Off values are identical, On >= Setpoint will be
displayed. Press
or
to toggle between < and >=.
10. Press
, key in On Delay value.
11. Press
, key in Off Delay value.
NOTE: Delay is the number of seconds before activating or deactivating the relay contact closure. This value is adjustable from 1 to
120 seconds.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
29
12. Press
to display Failsafe. Press
between On, Off, or Hold.
or
to toggle
NOTE: With loss of power, all relays, regardless of fail-safe setting, will
de-energize.
NOTE: Fail-safe is the state the relay will assume if a fault is detected
or echo loss occurs. Off means the relay is de-energized. On
means the relay is energized and Hold means the relay is left in
the state the relay was in when the fault occurred.
13. Press
to display Relay Settings.
NOTE: If all relays are set, press
4–20 mA Settings.
to proceed to Section 4.4.2,
4.4.1.2 Relay #2 – normal operation or lead/lag pump control
Air
Relay 2,
Energized
Relay 1,
Energized
Liquid
NOTE: Lead/lag pump control provides for an exchange of the role or
function of two pumps in order to provide for even pump wear.
The relay action is identical to the Auto Empty Mode or the
Auto Fill Mode; however, following each pump shutdown, the
lead/lag role of each pump is exchanged.
1. Press
2. Key in
Relays 1 & 2,
De-energized
Figure 26
to display Relay #.
, press
to display Mode: Normal.
NOTE: If relay number is entered in error, press
Relay Settings.
3. Press
press
to return to
or
to toggle between Normal and LeadLag1/2,
. The operating status of the relay will be displayed.
NOTE: If lead/lag is selected, relays 1 and 2 will alternate. When using
lead/lag pump control, set points cannot be identical; they
must operate in the same direction. Refer to Figure 26.
Pump II On
Pump I On
Pump II On
Pump I On
Pump II On
Pump I On
Pump II Off
Pump I Off
Pump II Off
Pump I Off
Pump II Off
Pump I Off
Cycle I
Cycle II
Cycle III
4. Proceed to Step 7 in Section 4.4.1.1 Relay #1.
Figure 27
30
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
4.4.1.3 Relay #3 – normal operation or fault detection
1. Press
to display Relay #.
2. Key in
, press
to display Mode: Fault.
NOTE: If relay number is entered in error, press
Relay Settings.
3. Press
or
to return to
to toggle between Fault and Normal.
4. If Normal, press
Relay #1.
5. If Fault, press
and proceed to Step 7 in Section 4.4.1.1
to display T'ducer.
NOTE: Each of the following menu items may be selected to operate
with Relay 3. Using
or
, toggle between Enabled and
Disabled. Press
to continue to next item.
T’ducer
The unit was not able to detect a transducer
connected or was not able to determine the
transducer’s frequency.
No Echo
The unit is not able to detect a return signal
from the transducer.
Ringdown
The transducer is ringing long enough to ring
beyond the blocking distance and into the span.
Loop flt
The calculated value for the loop output is less
than 4 mA or greater than 20 mA. The loop output will be in its fail-safe mode.
Temp.
The signal from the temperature sensor in the
transducer is out of range. Either a short or
open lead is detected.
System
This error is generated when there is an error
writing configured values to non-volatile memory.
Fault Action
Energized
De-Energized
6. With Fault Action displayed, press . Using
toggle between Energize or De-Energize.
7. Press
to display Previous Menu, press
Relay Settings.
NOTE: If all relays are set, press
4–20 mA Settings.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
or
,
to display
to proceed to Section 4.4.2,
31
4.4.1.4 Relay #4 – normal operation or sampler
1. Press
2. Key in
to display Relay #.
, press
to display Mode: Normal.
NOTE: If relay number is entered in error, press
Relay Settings.
3. Press
or
to return to
to toggle between Normal and Sampler.
4. If Normal, press
Relay #1.
and proceed to Step 7 in Section 4.4.1.1
5. If Sampler, press
.
NOTE: The pulse duration is 90 milliseconds for the contact closure.
6. Press
or
to toggle between Sample By Time or
Sample By Flow, press . If Sample By Flow is chosen,
proceed to step 10.
NOTE: Sample By Time is only allowed with units ordered with data
logging option.
7. Interval 0000 is displayed. Key in contact closure time in
minutes, press .
8. Press
to display Password?. Key in password.
9. Press . The display reads Processing.... and then
Relay Settings.
NOTE: If all relays are set, press
4–20 mA Settings.
to proceed to Section 4.4.2,
10. FLW ___. is displayed. Key in contact closure rate,
press .
NOTE: Sample By Flow is a momentary (90 millisecond) contact closure. Example: If 1000 gallons is entered, relay 4 will energize
once for every 1000 gallons.
11. Press
to display Relay Settings.
NOTE: If all relays are set, press
32
to proceed with 4–20 mA Settings.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
4.4.2 4–20 mA Settings
NOTE: 4–20 mA settings is dependent on the choice of Mode Setup
designated in Section 4.3, System Configuration.
1. Press
to display 4: __., Setpoint Level, Setpoint Flow or
Setpoint Volume, depending on the mode that the unit is in.
2. Press
or
to toggle between Level, Flow and Volume.
3. Press
to display 4: __. Key in value.
4. Press
to display 20: __. Key in value.
5. Press
to display Failsafe. Press
or
between 4ma, 20mA, 22mA and Hold.
6. Press
to toggle
to display Password?. Key in password.
7. Press . The display reads Processing.... and then
4–20 Relay Settings.
NOTE: If all 4–20 mA Settings are complete, press
Section 4.4.3, Totalizer (Flow Mode only).
to proceed with
4.4.3 Totalizer (Flow Mode only)
NOTE: The selected display units will determine the totalizer units.
Example: if units are gallons and multiplier is 100, for every 100
gallons the totalizer will advance once. This is the weight of
each count of flow increment shown on the multiplier totalizer.
1. Press
then
Software.
2. Press
or
to toggle between Hardware and
. Key in multiplier value.
3. Press
to display Password?. Key in password.
4. Press
to display Totalizer.
NOTE: Repeat this procedure for the remaining option (hardware or
software).
NOTE: The hardware/software totalizing multiplier should be chosen
so that at maximum value, the advance rate should not exceed
once per minute. Minimum multiplier is 0.01.
NOTE: If power to the unit is removed, Software Totalizer will reset to
zero, unless data logger option was ordered.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
33
4.5
Advanced Configuration
This menu is used to calibrate non-control parameters of
the Model 344/345. Each menu item will prompt for
Sup Pswd? as a protection against unauthorized changes.
WARNING: These values are factory set and should not be
changed without consulting the factory.
1. Press
to display Measured Values.
2. Press
to display System Config.
3. Press
to display I/O Config.
4. Press
to display Advanced Config.
5. Press
then
or
to scroll through Advanced
Configuration selections.
Temperature
Calibrate
Gain Limit
Dampening
False Targets
Set Clock
Enter Tag
Default Display
Calculation
Change Password
Change Sup Password
Previous Menu
Temperature
1. Press
to display the temperature sensed inside the transducer in degrees °F (°C if metric level units are chosen).
2. If the transducer is changed or the value seems to be in
error, enter the correct value and press .
3. Display will read Sup Password?, your chosen password
must be entered at this time. Press .
Calibrate
1. Press
to display the measured distance in the present
units of level.
2. If the process is other than air and/or a known distance is
available, enter the correct value and press .
NOTE: This feature allows the instrument to be used with inert gas
blankets where the speed of sound differs significantly from
atmospheric pressure.
34
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
NOTE: If calibrate mode is not properly used, this may cause false
level readings. Consult factory for reset procedures.
3. Display will read Sup Password?; your chosen password
must be entered at this time. Press .
Gain Limit
1. Press
to display the value of Maximum gain that the
unit will use. This value is from 1–32 and the unit steps up
in single gain increments until a suitable signal is received.
Limiting the Max Gain to a lower value may help limit
noise problems.
2. Enter any value between 1 and 32. Press
.
3. Display will read Sup Password?, your chosen password
must be entered at this time. Press .
NOTE: The Model 344/345 adapts its gain to suit the conditions of the
application. There are 32 gain steps. The higher the number,
the higher gain/drive required to detect an acceptable signal.
Dampening
1. Press
to display the value dampening. This factor is a
smoothing or averaging factor for the Model 344/345 output. The higher the number, the more smoothing to
improve performance during rapid changes. The value may
be between 1 and 16.
2. Enter any value between 1 and 16. Press
.
3. Display will read Sup Password?; your chosen password
must be entered at this time. Press .
NOTE: The dampening factor is a smoothing or averaging term.
The 344/345 averages echo values over a number of previous
measurement cycles. The dampening factor instructs the number of cycles over which the unit should perform this average.
Thus, the higher the dampening factor, the more averaging and
the slower it reacts to a step change in level.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
35
False Targets
NOTE: Contact the factory prior to using the False Targets feature.
The false target rejection feature allows for semi-automatic
programming as follows. The tank must be empty or the
level below any false targets that will be rejected. The
344/345 will proceed to find the first target which provides
a detectable echo. The display will prompt the user to identify each echo as either a false target or the true distance to
the process material.
1. If the echo results from a false target, press . The
344/345 will store gain and distance parameters about each
target that will allow it to discern true levels from false target echoes.
The 344/345 will suppress this target and increase gain
until the next target is obtained. This procedure can be
repeated until all false targets have been acknowledged.
2. After the true distance is displayed, press
3. The 344/345 will prompt “Press
targets.
4. Press
.
” to save all new false
to continue.
5. Display will read Sup Password?, your chosen password
must be entered at this time. Press .
NOTE: Entering this menu again will restart the false target selection
and clear the old targets.
WARNING: Make sure that all false targets are cleared or deleted
from the software. Press
when Tar 0:___in is displayed. Press
and input Supervisory Password
code.
Set Clock
This allows for setting or changing of the date and time.
This is only available with the Data Logging option. Unit
prompts for:
Month?
Date?
Year?
Hour? (24-hour format)
Minute?
After entering these values, the unit prompts
then requests password.
36
to set and
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
Enter Tag
This menu shows the present Tag - Magnetrol.
1. If desired, this tag can be changed by using
scan through characters.
or
to
2. Press
to use the character at that location in the Tag.
Pressing the
key will start scrolling of the available characters. When close to the desired character, press
and use
arrows to reach desired character.
Default Display
This menu allows the operator to select the items to be displayed during normal operation.The following items may
be toggled Enabled/Disabled using
or :
Level
Vol/Flow (Only when Volume or Flow mode is chosen)
Loop
Tag
Clock
Calculation
Totalizer
The last menu item is Previous Menu. If any change was
made in the default display, pressing
at this point will
cause the unit to prompt for the Sup Pswd.
Calculation
1. Press
to display Existing Text Is.
2. Press
again to display Text:.
3. Enter Text by using
or
and press
at each entry.
Display will then read Mult:. This is the multiplier used to
show up in calculation. This value is multiplied by your
level, flow or volume reading.
NOTE: The calculation is intended for display purposes only. It does
not affect the control relays or loop current output.
Change Password
Allows for a change of password. Requires the Sup Pswd.
Change Sup Password
Allows for a change of Sup Pswd. Requires the Sup Pswd.
Previous Menu
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
1. Press
to return to the previous menu, Advanced Config.
2. Press
arrow to proceed to Diagnostics.
37
4.6
Diagnostics Menu
This menu is used to provide the user with testing the
functionality and providing useful information for
troubleshooting of the unit.
1. Press
to display Measured Values.
2. Press
to display System Config.
3. Press
to display I/O Config.
4. Press
to display Advanced Config.
5. Press
to display Diagnostics.
6. Press
then
or
to scroll through Diagnostic
selections.
Test Relays
Test 4–20 Loop
Signal Strength
View Version#
Extended Errors
Previous Menu
Test Relays
This menu allows the operator to cycle individual control
relays on or off.
Test 4–20 mA Loop
By entering different values into the system, the actual loop
current output can be adjusted to test dependent devices
and/or control loops. The entered mA value will remain
until the
key is pressed.
Signal Strength
This menu provides the user with a gain value from 1 to 32
(1=low gain/sensitivity, 32=high gain/sensitivity) and a percent received signal strength from 0 to 100%. The 344/345
processor controls the signal strength at 60–70%. This is a
variable gain circuit which self-adjusts for an optimum signal
return.
View Version
This is the software version number in the 344/345.
Extended Errors
This information may be requested during troubleshooting
of the unit.
38
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
4.7
Laptop Menu
This menu is used to enter the start and end day range for
downloading of stored data log for the Model 344/345 with
optional data logging feature.
1. Press
to display Measured Values.
2. Press
to display System Config.
3. Press
to display I/O Config.
4. Press
to display Advanced Config.
5. Press
to display Diagnostics.
6. Press
to display Laptop.
7. Press
to display Strt. Enter the number of the day (the
most recent day) to begin downloading. The present day is
always day 1. Data up to 31 days prior to the current day
can be downloaded.
8. Press
and End will appear. Key in the ending day.
9. Press , Processing… will be displayed. If the laptop is
connected for RS-232 and the baud rate is compatible as set
in the I/O Config, the unit will begin to download the
start/end day range. See Figure 28 at left.
DB 25F Connector
(Laptop)
TB2
(344/345 Transmitter)
7
3
TX
2
RX
NOTE: This is an updating 31-day format. It will download the minimum, maximum (at times of occurrence), and total flow data for
selected days. When the transmission of data is complete, the
display will return to Laptop.
Any PC communication program may be used to capture
this data. Start the communications program. Set up as
8 bit, 9600 Baud, 1 stop bit. Select download file (usually
page DOWN key), select ASCII file type. Refer to your
communications program documentation if needed.
Figure 28
5.0
Reference Information
5.1
Description
Model 344/345 transmitters perform level, volume, or open
channel flow measurements of liquids and slurries.
5.2
Theory of Operation
Pulses generated by the electronics are transmitted to the
ultrasonic transducer. The transducer directs an ultrasonic
pulse to the liquid surface. The returning echo/signal is
detected by the transducer. The electronics convert the signal into a digital representation of the level, flow or volume
measurement.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
39
5.3
Troubleshooting
Following these five steps will assist in troubleshooting application difficulties with Model 344/345:
Step 1:
Application Checklist – review fundamental
application parameters
Step 4:
Troubleshooting Flowchart – step-by-step
procedure
Step 2:
Installation Checklist – review typical installation problems
Step 5:
Contact factory.
Step 3:
Troubleshooting Table – explains diagnostic error
conditions shown on the LCD display and some typical
electronic problems.
APPLICATION CHECKLIST
Check for the following application sensitivities before proceeding to the next section:
VAPORS
INVISIBLE (may alter speed of sound)
VISIBLE (may cause false reflections or attenuation)
FOAM
SURFACE AGITATION
ANGLE OF REPOSE
TEMPERATURE
PRESSURE
OBSTRUCTIONS
If any of the above sensitivities are present, consult the factory for recommendations.
INSTALLATION CHECKLIST
CABLE
1. _____
Was Belden 8102 used? If not, improper operation may occur.
2. _____
Is transducer wiring run in a dedicated conduit?
3. _____
Is shield connected at both ends?
TRANSDUCER
1. _____
Check transducer alignment (vertical)
2. _____
Is transducer mounted hand tight? Over tightening may cause ringing, some installations
may require use of a “shock” absorber.
PROCESS cont.
3. _____
Does the tank have a mixing blade? Could it
be providing false level readings or creating a
vortex resulting in echo loss.
4. _____
Is there an angle of repose? (Solids)
NOTE: Refer to Section 5.7, Measurement Range
Calculations, if any of the points in the PROCESS
section have been checked.
TRANSMITTER
Enter the specified menu and obtain the following information before consulting the factory.
3. _____
Minimum nozzle diameter 8 inches.
4. _____
Maximum nozzle height 11 inches.
LEVEL____________________
5. _____
Check beam path for obstructions, including
tank wall. Refer to Section 1.4 for Sonic Beam
Dispersion chart.
DISTANCE ________________
6. _____
Check transducer housing for moisture.
7. _____
What is the distance from the transducer face to
current level?
MEASURED VALUES MENU
SYSTEM CONFIGURATION
RANGE___________________
SPAN ____________________
ADVANCED CONFIGURATION
TEMPERATURE ___________
PROCESS
1.
GAIN _____________________
What is the temperature?
a. At transmitter __________________
b. At transducer __________________
2.
DIAGNOSTICS MENU
What is the media being measured? ________________
SIGNAL STRENGTH _______%
1. Transmitter is
I indoors I outdoors?
2. What is the transmitter serial number?
___________________________________________________
40
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
5.3.1 Troubleshooting System Problems
Problem
Solution
COMM PARAM FAIL
The configuration parameters for
the communications port are
corrupt.
Press ENT to continue. This loads default values for the
communication parameters. The configuration parameters
should be checked to make sure that they match your
application.
MAIN PARAM FAIL
The main parameters which
store range/reference and
span/headroom are corrupt.
Press ENT to continue. This will load default values for the main
parameters. All of the items in the System Config menu need to be
verified.
STRAP TABLE FAIL
There is an error in the custom
strapping table entry.
Press ENT to continue; the table is cleared. If a custom table is not
being used, then this error can be ignored. If you are using a custom
table, the table has to be re-entered.
RLY1 PARAM FAIL
The parameters for Relay 1 are
corrupt.
Press ENT to continue. The relay is disabled and the settings are set
to default values. Reconfigure the relay from the I/O Config menu.
RLY2 PARAM FAIL
The parameters for Relay 2 are
corrupt.
Press ENT to continue. The relay is disabled and the settings are set
to default values. Reconfigure the relay from the I/O Config menu.
RLY3 PARAM FAIL
The parameters for Relay 3 are
corrupt.
Press ENT to continue. The relay is disabled and the settings are set
to default values. Reconfigure the relay from the I/O Config menu.
RLY4 PARAM FAIL
The parameters for Relay 4 are
corrupt.
Press ENT to continue. The relay is disabled and the settings are set
to default values. Reconfigure the relay from the I/O Config menu.
LOOP PARAM FAIL
The 4–20 mA loop parameters
are corrupt.
Press ENT to continue. The loop is disabled and the settings are set
to default values. Reconfigure the relay from the I/O Config menu.
CALC PARAM FAIL
The calculation parameters are
corrupt.
Press ENT to continue. New values need to be entered for the
calculation. This is done from the Calibration menu.
PASSWORD LOST
The passwords are corrupt.
Press ENT to continue. Enter new passwords from the
Calibration menu.
DATA LOG LOST
The data log is corrupt.
Press ENT to continue. The data log is cleared.
P.O.S.T. FAILED
Power on self test failed.
Turn unit off and apply power again. If the error clears, it was
Microprocessor internal register
able to set the register to the proper value and will function properly.
was not set correctly on power
up. The software will attempt to
set the register to the proper value
TRANSDUCER FAIL
The unit was not able to detect
a transducer connected or was
not able to determine the
transducer's frequency.
Display
LOSS OF ECHO
The unit is not able to detect a
return signal from the transducer.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
Ensure that the transducer is connected properly to the unit.
If the transducer wiring is properly connected, contact factory for
replacement transducer.
Ensure that the level to be detected is within the range and span of
the unit. Check the application for foam, obstructions, or heavy
vapors.
41
5.3.1 Troubleshooting System Problems
Display
RINGDOWN ERROR
Problem
Solution
The transducer is ringing long
enough to ring into the span of
the unit.
Decrease the span to increase the blocking distance (range
minus span) of the unit.
Replace the transducer (the current transducer may have a
problem that causes it to ring too long.
TEMPERATURE FAULT
The signal from the temperature
Check to see that the sensor wires are connected properly.
sensor in the transducer is out of Ensure that the sensor wires are not shorted or open.
range. Either a short or open lead
detected.
OPERATION DENIED
The current operation is not
allowed because the proper
password was not entered.
Retry the proper password.
“OUT OF RANGE”
The value that was entered was
not in an acceptable range.
Re-enter a value within the proper limits.
CANNOT BE EQUAL
The value for the 4 mA point
and the 20 mA point cannot
be equal.
Choose the values that are not the same and re-enter.
INVALID LEAD/LAG
Setting relay 1 and 2 for
lead/lag is not allowed.
Check that both relays are enabled and that the set points are
proper for lead/lag operation.
PASSWORD INVALID
The password entered is
not valid.
Retry the previous operation and enter the proper password.
NO CLOCK PRESENT
The real time clock was not
found on the board.
No data logging or time
sampling is allowed.
If you need the real time functions, contact the factory to see if
your unit was ordered with the data logging option.
LOOP > 20 mA
The calculated value for the
loop output is greater than
20 mA. The loop output will be
in its fail-safe mode.
If the level is within a normal operating range, adjust the loop
parameters to allow proper tracking of the level. If the level is out
of the normal 4–20 mA range then correct the problem with the
level.
LOOP < 4 mA
The calculated value for the
loop output is less than 4 mA.
The loop output will be in its
fail-safe mode.
If the level is within a normal operating range, adjust the loop
parameters to allow proper tracking of the level. If the level is out
of the normal 4–20 mA range then correct the problem with the
level.
Faint display
Display is too dim or
too light
Turn the CONTRAST adjustment potentiometer clockwise to
darken the display or counterclockwise to lighten the display, until
the desired contrast is obtained. The CONTRAST pot is located
on the top left of the motherboard above the ribbon cable
connection.
1/2 display lit
Only half of display is lit
If a new PC board was recently purchased, it may be incompatible with the other boards. In this case, the JP9 jumper on the
motherboard (underneath daughterboard) should be moved to the
other position.
42
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
5.3.2 Troubleshooting Flow Chart
IS LED D10 LIT ON MOTHER BOARD?
• CHECK POWER SUPPLY
NO
• CHECK FUSE
YES
IS LCD DISPLAY ON?
• CHECK RIBBON CABLE
NO
• ADJUST CONTRAST POT (SEE SECTION 5.3.1)
• CHECK BOARD CONNECTION
YES
• VERIFY PASSWORD
ACCESS DENIED TO PROGRAMMING
YES
NO
• CHECK TRANSDUCER WIRING
IS DISPLAY SHOWING LOSS OF ECHO
• CHECK RANGE AND SPAN SETTINGS
RINGDOWN ERROR
TEMP. FAULT
YES
TRANSDUCER FAIL?
• IF S.S. SENSOR, MAKE SURE PLASTIC
PROTECTIVE COVER HAS BEEN REMOVED
NO
IS LEVEL READING CORRECT?
• MAKE SURE TARGET IS NOT BEYOND
RANGE OR ABOVE SPAN
• CHECK RANGE AND SPAN SETTINGS
NO
• CHECK TEMPERATURE READING
YES
ARE RELAYS OPERATING PROPERLY?
• CHECK RELAY PROGRAMMING
NO
• MAKE SURE UNIT IS READING
CORRECT LEVEL
YES
IS 4–20 MA OUTPUT CORRECT?
YES
• CHECK 4–20 MA PROGRAM SETTINGS
NO
• MAKE SURE UNIT IS READING
CORRECT LEVEL
• LOOP POWER IS SUPPLIED BY 344/345
MAKE SURE LOAD IS IN PASSIVE MODE
• LOOP RESISTANCE MUST BE <1000 OHMS
UNIT IS OPERATING CORRECTLY
CONTACT FACTORY
If it becomes necessary to contact the factory for technical
assistance, please have all of the information gathered in
Steps 1-4 readily available. This will help us in resolving
the problem.
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
43
5.4
Agency Approvals
AGENCY
FM
MODEL APPROVED
APPROVAL CATEGORY
APPROVAL CLASSES
34X-X442-10X
Non-hazardous
NEMA 4X, IP65
Non-incendive
Class I, II, III, Div. 2;
Groups A, B, C, D, F, & G, T4A
Non-hazardous
NEMA 4X, IP65
Explosion proof
Class I, II, III, Div. 1;
Groups B, C, D, E, F, & G, T6
385-XXXX-XXX
Non-hazardous
NEMA 4X, IP65
385-XEXX-006
385-XEXX-010
Explosion proof
Class I, II, III, Div. 1;
Groups B, C, D, E, F, & G, T6
385-XEXX-003
Explosion proof
Class I, II, III, Div. 1;
Groups A, B, C, D, E, F, & G, T6
34X-X442-10X
Non-hazardous
Type 4X enclosure
344-X442-10X
Non-incendive
Class I, II, III, Div. 2;
Groups A, B, C, D, E, F, & G, T4A
384-XKXX-0XX
Non-hazardous
Type 4X enclosure
384-XK0X-0XX
Explosion proof
Class I, II, III, Div. 1;
Groups B, C, D, E, F, & G
384-XK1X-0XX
384-XKYX-0XX
Explosion proof
Class I, II, III, Div. 1;
Groups C, D, E, F, & G
385-XXXX-XXX
Non-hazardous
Type 4X enclosure
385-XE1X-0XX
385-XEYX-0XX
Explosion proof
Class I, II, III, Div. 1;
Groups C, D, E, F, & G
385-XE0X-0XX
Explosion proof
Class I, II, III, Div. 1;
Groups A, B, C, D, E, F, & G
384-XKXX-0XX
CSA
These units have been tested to EN 50081-2
and EN 50082-2 and are in compliance with
the EMC Directive 89/336/EEC.
44
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
5.5
Specifications
5.5.1 Transmitter
Supply voltage
120 VAC +10%/-15%, 50–60 Hz
240 VAC +10%/-15%, 50–60 Hz
24 VDC, ±20%
Power consumption
Fuse size
Output signal
Relays
Fail-safe
Display
Keypad
Enclosure material
Weight
Response time
Accuracy
Humidity
Ambient temperature
without heater & thermostat*
with heater & thermostat
12 watts (without heater)
1
⁄4 amp replaceable, 250 VAC Slo-Blo® for AC units
2 amp replaceable, 250 VDC Slo-Blo for DC units
4–20 mA isolated (1,000 Ω load), RS-232
Four 10 amp resistive, SPDT
User selectable for analog and relay outputs
Sixteen (16) character alphanumeric LCD
Sixteen (16) button integral to front panel
High-impact polycarbonate
8 pounds (3.6 kg)
2 seconds typical
± 0.25% of calibrated span
95% Non-condensing
-4° to +160° F (-20° to +70° C)
-40° to +160° F (-40° to +70° C)
* The 31-day data logger has a +32° F (0° C) minimum when used without the heater and thermostat.
5.5.2 Transducer
Transducer frequency
Maximum range
Maximum span
Minimum dead band
Operating temperature
Operating pressure
Temperature compensation
Beam angle
Cable length
Model 384
38 kHz
35 feet (10.7 meters)
33.5 feet (10.2 meters)
18 inches (460 mm) from
-40° to +163° F (-40° to +73° C)
Model 385
50 kHz
25 feet (7.6 meters)
24 feet (7.3 meters)
12 inches (305 mm) from
-40° to + 140° F (-40° to +60° C)
18 inches (460 mm) from
+140° to +200° F (+60° to +93° C)
-40° to +163° F (-40° to +73° C)
-40° to +200° F (-40° to +93° C)
-10 to +50 psig (-0.69 to +3.45 bar)
Automatic, over the operating temperature range of the transducer
12° conical
500 feet (152 meters) maximum between transducer and transmitter
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
45
5.5.3 Physical
Inches (mm)
Model 344/345 Transmitter
9.50
(241)
6.75
(171)
13.00
(330)
9.50
(241)
6.00
(152)
Figure 29
Figure 30
Front View
Side View
Model 385 Transducers
4.63 (118)
Dia.
3.00
(76)
2.75
(70)
3/4"
NPT
4.00
(102)
2" NPT
3/4" NPT
3/4"
NPT
3.00 (76),
6.00 (152) or
10.00 (254)
depending
upon model
Optional
Mounting
Flange
1.90 (48)
1.90 (48)
46
3.00 (76),
6.00 (152) or
10.00 (254)
depending
upon model
6.00 (152) or
10.00 (254)
depending
upon model
3.00
(76)
1.90 (48)
1.90 (48)
Figure 32
Figure 31
2" NPT Transducer with Housing
2"
NPT
3/4"
NPT
⁄4" and 2" NPT Transducer without Housing
3
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
5.5.3 Physical
Inches (mm)
Model 384 Transducers
1" NPT
Process
Connection
1" NPT
Process
Connection
10.00" (254)
Insertion Length
3/4" NPT
4.63 (118)
Dia.
3.00" (76)
Insertion Length
2" NPT
Process
Connection
3.00
(76)
2.75
(70)
2" NPT
Process Connection
Figure 33
1" NPT Transducer without Housing
4.50
(114)
10.00" (254)
Insertion Length
3.00" (76)
Insertion Length
2.12 (54)
Insertion Dia.
2" NPT
Process
Connection
2.12 (54)
Insertion Dia.
Figure 34
2" NPT Transducer with Housing
2" NPT
Process
Connection
10.00" (254)
Insertion Length
3.00" (76)
Insertion Length
Figure 35
2" NPT Transducer without Housing
Optional Mounting Brackets
3/4" Male NPT
(P/N 36-3813-002)
2" Female NPT
(P/N 36-3813-001)
3/4" Male NPT
(P/N 36-3812-002)
3.00
(76)
29.00
(736)
1.50
(38)
2.00
(50)
3.12
(79)
2" Female NPT
(P/N 36-3812-001)
3.12
(79)
2.00
(50)
6.12
(155)
20.50
(520)
22.50
(571)
3.00
(76)
1.50
(38)
20.50
(520)
22.50
(571)
Figure 36
Figure 37
Floor Mount Bracket
Wall Mount Bracket
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
47
5.6
Item
Replacement Parts
Description
Part Number
1
NEMA 4X enclosure, LCD display, keypad with hardware
2
Enclosure gasket
3
Main P.C. board
4
Consult Factory
012-1606-001
120 VAC
Z30-3564-001
120 VAC with data logger
Z30-3564-007
240 VAC
Z30-3564-002
240 VAC with data logger
Z30-3564-008
24 VDC
Z30-3564-003
24 VDC with data logger
Z30-3564-009
Daughter P.C. board
Model 344
Z30-3573-001
Model 345
Z30-3565-001
5
Display P.C. board
Z30-3539-002
6
Transducer housing base
7
NEMA 4X, aluminum
004-9104-001
NEMA 4X, stainless steel
004-9140-001
Transducer housing cover
NEMA 4X, aluminum
004-9105-001
NEMA 4X, stainless steel
004-9142-001
8
O-ring
012-2101-345
9
Transducer P.C. board
030-3515-001
10
Bracket
005-6634-001
11
Transducer
Refer to Section 5.8, Model Numbers
Transducer mount bracket
48
Wall mount, 3⁄4" male NPT
036-3812-002
Wall mount, 2" female NPT
036-3812-001
3
Floor mount, ⁄4" male NPT
036-3813-002
Floor mount, 2" female NPT
036-3813-001
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
5.6
Replacement Parts
2
5
4
11
Optional
Mounting
Flange
1
11
3
Figure 38
Figure 39
Figure 40
Transmitter
Model 384 Transducer without housing
Model 385 Transducer
without housing
6
7
9
6
8
7
10
9
8
10
11
Optional
Mounting
Flange
11
Optional
Mounting
Flange
Figure 41
Figure 42
Model 384 Transducer with Housing
Model 385 Transducer with Housing
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
49
5.7
Measurement Range Calculations
Ultrasonic non-contact devices are typically rated for a
maximum range in ideal conditions. Experience has shown
that maximum range must be reduced for certain factors.
Although the maximum range rating is somewhat conservative, each application must be evaluated for specific conditions in the tank.
H O W
T O
C A L C U L A T E
To evaluate the performance of a 344 or 345 in a particular
application, use the chart on the next page and follow the
steps below:
1. Select one condition from each of the operating
parameters that best describes your application.
2. Enter the corresponding performance multiplier
value in the application column.
3. Multiply all of the selected values together.
4. Multiply step 3 by the maximum potential range of
the unit. This yields a value that is the maximum
allowable measurement range for the application.
Sensor alignment
Temperature
Pressure
Beam spread
interference
Air movement
Beam spread
interference
Dust
Vapors
Foam
Surface
agitation
E X A M P L E
The vessel is a closed-top tank, 26-feet tall and is filled from the top.
Surface agitation
Expect slight agitation from fill line. Performance multiplier 0.9.
Vapor and steam
The process temperature is +130° F, slight vapor is expected.
Performance multiplier 0.9.
Beam interference
No interference exists. Performance multiplier 1.0.
Transducer alignment
Foam
Dust
Air movement
Ambient temperature
Pressure
The transducer will be perpendicular to the liquid surface.
Performance multiplier 1.0.
None. Performance multiplier 1.0.
None. Performance multiplier 1.0.
None. Performance multiplier 1.0.
0 to +120° F. Performance multiplier 1.0.
Atmospheric pressure. Performance multiplier 1.0.
Will the Model 344 work for this application?
C A L C U L A T I O N
Multiply all values in the application column:
0.9 x 0.9 x 1.0 x 1.0 x 1.0 x 1.0 x 1.0 x 1.0 x 1.0 x 35 feet (maximum) = 28.35 feet
The calculation yields 28.35 feet as the new maximum range. Since the tank is 26 feet tall, this application will give
satisfactory results with the Model 344.
NOTE: The performance multipliers provided are conservative estimates. Since these factors are subjective, the
values have been designed to provide very high confidence of system success. Contact the factory if
there are any questions concerning the interpretation of any of these performance multipliers.
50
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
Operating Parameter
Condition
SURFACE AGITATION: Surface agitation or waves can degrade the
performance. Moderate agitation results in only slight degradation
of performance. The worst case is when the surface is a good
reflector, but in the wrong direction. (See also transducer alignment.)
VAPORS AND STEAM: Vapors in the air space, above the process,
become apparent, and cause problems when the liquid process
temperature is well above the temperature of the airspace. The
greater the difference, the more expected vapor problems. The
problems result from condensation or layering in the sound path,
both of which attenuate the sound signal, degrading performance
To avoid these problems, ensure that the vessel is insulated so that
vapors are less likely to condense. If a vent is used, be sure that the
vent, which is where condensation will form, is well away from the
transducer.
BEAM SPREAD INTERFERENCE: It is strongly recommended that
nothing be allowed within the transducer’s beam, except the liquid
which is being monitored. Often, the signal from the liquid will be
strong, compared to the signal from other sources, such as ladder
rungs, filling process material, support struts, etc. For that reason,
some applications may provide satisfactory results, even with
interference. Interference from agitator blades is only an intermittent
interference that usually has little effect on performance.
It is recommended there be no interference within the 6° half angle of
the transducer beam. If interference is unavoidable, make the interference as far as possible from the transducer so that the real signal
at the longest distance is stronger than the interference signal.
Performance
Application
Multiplier
Smooth, glasslike surface
1.0
Slight agitation, choppiness
0.9
Heavy agitation
0.8
Slight vortex (6°)
0.7
No condensation
1.0
Little condensation
0.9
Much condensation/
foggy appearance
0.8
No interference
1.0
Agitator at speed less than 60 RPM
1.0
Agitator at speed greater than 60 RPM
Consult
Factory
Interference outside 4°, far from
transducer (in bottom third of range)
0.8
Interference outside 4°, near to
transducer (in top third of range)
0.5
TRANSDUCER ALIGNMENT: Optimum performance is obtained when Beam perpendicular to liquid surface
the transducer is perfectly aligned. If the process is not perpendicular
to the sound beam, the sound will not reflect properly back to the
Beam 4° off from perpendicular
transducer. The effect is significant.
1.0
FOAM: Even small thicknesses of foam can attenuate the ultrasound and render the system inoperative. If possible, moving the
transducer to an area in the tank where there is less foam will improve
the performance. Thick, heavy-density foams can sometimes produce
a reflection from the top of the foam. The multipliers shown at right
are general guidelines. For further assistance consult the factory.
No foam
1.0
Light froth, less than 0.25" thick
0.8
Light foam, less than 0.5" thick
0.5
Light foam, more than 1" thick
0.1
No dust
1.0
Haze, barely perceptible
0.7
DUST: Dust attenuates the sound and results in poor performance.
Even barely perceptible haze in the air can cause significant
attenuation.
AIR MOVEMENT: The movement of air, as possible in an open top
vessel, can create a layer from which the sound will reflect. This will
be most noticeable in applications where vapors or steam tend to
form.
AMBIENT TEMPERATURE: The ambient temperature can have a
significant effect on the sound and on the transducer’s capability to
transmit and receive sound. The most noticeable effect on the
transducer is at the temperature extremes.
PRESSURE: Sound requires air molecules to be able to travel. Sound
will not travel in a vacuum. Likewise, higher pressures will allow the
sound to continue without decay, which can cause problems with
multiple echoes.
0.5
Slight dust
0.4
Heavy dust
0.1
No air movement
1.0
Open vessel, but transducer below rim
0.8
Open air movement in sound path
0.7
-20° to +140° F (-29° to +50° C)
1.0
-40° to -20° F (-40° to -29° C)
0.9
+140° to +160° F (+50 to +70° C)
0.9
-10 to +50 PSIG (0.689 to +3.45 Bar)
1.0
Pressures outside above rating
Consult
Factory
Multiply all values together in the application column
Multiply by maximum potential range (35 feet for Model 344 or 25 feet for Model 345 )
X
Maximum allowable measurement range for this application
=
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
51
5.8
Model Numbers
5.8.1 Transmitter
BASIC MODEL
344
Ultrasonic non-contact transmitter, used with Model 384 transducer
345
Ultrasonic non-contact transmitter, used with Model 385 transducer
INPUT POWER
0
120 VAC, 50/60 Hz
1
240 VAC, 50/60 Hz
2
24 VDC
3
120 VAC with heater and thermostat
4
240 VAC with heater and thermostat
SPECIAL OPTIONS
0
None
1
Mechanical totalizer
2
31-day data logger
3
Mechanical totalizer & 31-day data logger
4
4
2
1
0
5.8.2 Model 384 38 kHz Transducer
PROCESS CONNECTION
2
1" NPT, not available with transducer housing code 1 or Y
5
2" NPT
TRANSDUCER MATERIAL
K
Kynar®
TRANSDUCER HOUSING
0
No housing, 35' (10.7 m) of cable potted into transducer
Cast aluminum, NEMA 4X/7/9 housing with 3⁄4" NPT single conduit,
1
connecting cable ordered separately
316 stainless steel, NEMA 4X/7/9 housing with 3⁄4" NPT single conduit
Y
connecting cable ordered separately
TRANSDUCER MOUNTING BRACKET
0
No mounting bracket
3
Wall mount bracket for 2" NPT process connection only
4
Floor mount bracket for 2" NPT process connection only
TRANSDUCER INSERTION LENGTH
003
3" (76 mm) length
010
10" (254 mm) length
3
52
8
4
K
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
5.8.3 Model 385 50 kHz Transducer
PROCESS CONNECTION
1
5
⁄4" NPT, not available with transducer housing code 1 or Y
2" NPT
3
TRANSDUCER MATERIAL
K
E
Kynar
316 stainless steel (for use in hazardous environments, refer to agency approvals)
TRANSDUCER HOUSING
0
No housing, 35' (10.7 m) of cable potted into transducer
1
Cast aluminum, NEMA 4X/7/9 housing with 3⁄4" NPT single conduit,
connecting cable ordered separately
Y
316 stainless steel, NEMA 4X/7/9 housing with 3⁄4" NPT single conduit
connecting cable ordered separately
TRANSDUCER MOUNTING BRACKET
0
1
2
3
4
No mounting bracket
Wall mount bracket for 3⁄4" NPT process connection only
Floor mount bracket for 3⁄4" NPT process connection only
Wall mount bracket for 2" NPT process connection only
Floor mount bracket for 2" NPT process connection only
TRANSDUCER INSERTION LENGTH
003
006
010
3
8
3" (76 mm) length
6" (152 mm) length
10" (254 mm) length
5
5.8.4 Connecting Cable
CABLE LENGTH IN FEET
10 feet (3 m) minimum, 500 feet (152 m) maximum length.
Example: 12 foot cable length = Code 012
0
3
7
3
1
7
6
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
53
Notes
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
Notes
Echotel Model 344/345 Ultrasonic Non-contact Transmitter
ASSURED QUALITY & SERVICE COST LESS
Service Policy
Return Material Procedure
Owners of Magnetrol controls may request the return of
a control or any part of a control for complete rebuilding
or replacement. They will be rebuilt or replaced promptly. Controls returned under our service policy must be
returned by Prepaid transportation. Magnetrol will repair
or replace the control at no cost to the purchaser (or
owner) other than transportation if:
So that we may efficiently process any materials that are
returned, it is essential that a “Return Material
Authorization” (RMA) number be obtained from the factory, prior to the material’s return. This is available
through Magnetrol’s local representative or by contacting
the factory. Please supply the following information:
1. Returned within the warranty period; and
2. The factory inspection finds the cause of the claim to
be covered under the warranty.
If the trouble is the result of conditions beyond our control; or, is NOT covered by the warranty, there will be
charges for labor and the parts required to rebuild or
replace the equipment.
In some cases it may be expedient to ship replacement
parts; or, in extreme cases a complete new control, to
replace the original equipment before it is returned. If this
is desired, notify the factory of both the model and serial
numbers of the control to be replaced. In such cases, credit for the materials returned will be determined on the
basis of the applicability of our warranty.
1.
2.
3.
4.
5.
Company Name
Description of Material
Serial Number
Reason for Return
Application
Any unit that was used in a process must be properly
cleaned in accordance with OSHA standards, before it is
returned to the factory.
A Material Safety Data Sheet (MSDS) must accompany
material that was used in any media.
All shipments returned to the factory must be by prepaid
transportation.
All replacements will be shipped F.O.B. factory.
No claims for misapplication, labor, direct or consequential damage will be allowed.
5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4000 • Fax 630-969-9489 • www.magnetrol.com
145 Jardin Drive, Units 1 & 2 • Concord, Ontario Canada L4K 1X7 • 905-738-9600 • Fax 905-738-1306
Heikensstraat 6 • B 9240 Zele, Belgium • 052 45.11.11 • Fax 052 45.09.93
Regent Business Ctr., Jubilee Rd. • Burgess Hill, Sussex RH15 9TL U.K. • 01444-871313 • Fax 01444-871317
Copyright © 2010 Magnetrol International, Incorporated. All rights reserved. Printed in the USA.
Magnetrol, Magnetrol logotype, and Echotel are registered trademarks of Magnetrol International.
Teflon is a registered trademark of DuPont.
Kynar is a registered trademark of Arkema, Inc.
Slo-Blo is a registered trademark of Littelfuse, Inc.
BULLETIN: 51-629.5
EFFECTIVE: July 2010
SUPERSEDES: January 2000