BE51-161-1 Echotel355

ECHOTEL® 355
Ultrasonic non contact transmitter
for level, volume or open channel flow
DESCRIPTION
The Echotel® 355 is an integral mount, high performance
ultrasonic non contact transmitter for liquid level, volume
and open channel flow measurement.
The electronics are housed in a single compartment cast
aluminium or Lexan® housing. The intelligent electronics
analyze the ultrasonic echo profile, apply temperature compensation, reject echoes from false targets, and then
processes the true echo from the liquid surface. This results
in an extremely reliable measurement even when application difficulties like turbulence and false echoes exist.
Up to 6 m (20 ft) range
F E AT U R E S
• 2-wire, intrinsically safe loop powered
• Fast and easy configuration via 2 x 16 character display
and 4-pushbutton keypad
• False target rejection identifies true echo from liquid
surface
• Common tank shapes and 20-point custom table for
volume calculations.
• Flume/weir primary elements and generic equation for
open channel flow.
• Two 7-digit totalizers for flow:
- resettable
- continuous totalizer
Agency
ATEX
Open channel flow flumes and weirs
Paint, ink and solvent tanks
Chemical storage
Thick and viscous media
Batch and day tanks
➀ Consult factory for proper model numbers and classifications.
Model
355
Model 355
Maximum range 6 m (20')
Blocking Distance
250 mm (10")
minimum
Level
Approvals
II 1 G Ex ia IIC T4, intrinsically safe
II 1/2 G Ex ma / d IIC T6, flameproof enclosure
cFMus ➀
Other approvals are available, consult factory for more details
Model
355
Liquid
Lexan® housing with
polypropylene transducer
A G E N C Y A P P R O VA L S
A P P L I C AT I O N S
•
•
•
•
•
Cast aluminium housing
with Kynar Flex® transducer
Flow
Liquid
Parshall
Flume
Volume
standard shapes and 20-point custom table
Open channel flow
pre-configured flumes and weirs
Worldwide level and flow solutions
P R I N C I P L E O F O P E R AT I O N
The level measurement is accomplished by emitting an
ultrasonic pulse from the transducer face and measuring
the travelling time between sending this pulse and its
reflected echo from the liquid surface. Since the speed of
sound is temperature dependant, the transducer also measures ambient temperature to compensate for the changing
velocity.
Measurement Range Calculations
Ultrasonic non-contact measurement transmitters are typically rated for their maximum rangeability. Depending
process conditions, their maximum range needs to be
reduced for getting an optimal measuring result. Use below
chart to calculate the realistic rangeability of your application.
6 m (20 ft) x Performance multiplier (see table below) as per
described process condition.
OPERATING PARAMETER
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.
VAPORS AND STEAM: Vapors can 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, and degrade performance. If a
vent is used, be sure that it is well away from the transducer.
BEAM SPREAD INTERFERENCE: It is recommended
that no obstructions, such as ladder rungs, fill pipes, support struts, etc, be allowed within the 10° ultrasonic beam.
If an obstruction is unavoidable, make it as far as possible
from the transducer. Interference from agitator blades is
only an intermittent interference that usually has little effect
on performance. A special software algorithm can also
help suppress false echoes from agitator blades that are
within the beam angle.
FOAM: 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.
Beam spread
interference
Beam spread
interference
Vapors
Foam
Surface
agitation
CONDITION
PERFORMANCE
MULTIPLIER
Smooth, glass-like surface . . . . . . . . . . . . . . . . . . . . 1.0
Slight agitation, choppiness . . . . . . . . . . . . . . . . . . . . 0.9
Heavy agitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8
Slight vortex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7
No condensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0
Little condensation . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.9
Much condensation/ foggy appearance . . . . . . . . . . . 0.8
No interference within 5° half beam angle . . . . . . . . 1.0
Agitator at speed less than 60 RPM . . . . . . . . . . . . . 1.0
Agitator at speed greater than 60 RPM . Consult factory
Interference outside 2°, far from
transducer (in bottom third of range) . . . . . . . . . . . . . 0.8
Interference outside 2°, near to
transducer (in top third of range) . . . . . . . . . . . . . . . . 0.5
No foam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0
Light froth, less than 6 mm (0.25") thick . . . . . . . . . . 0.8
Light foam, less than 12 mm (0.5") thick . . . . . . . . . . 0.5
Light foam, more than 25 mm (1") thick . . . . . . . . . . 0.1
EXAMPLE: A heavily agitated tank, without condensation, no interference and a light froth on the surface.
Max recommended range: 6 m x 0.8 x 1.0 x 1.0 x 0.8 = 3,84 m
EXPEDITE SHIP PLAN (ESP)
Several models are available for quick shipment, within max. 4 weeks after factory receipt of purchase order, through the
Expedite Ship Plan (ESP).
Models covered by ESP service are conveniently grey coded in the selection data charts.
To take advantage of ESP, simply match the colour grey model number codes (standard dimensions apply).
ESP service may not apply to orders of ten units or more. Contact your local representative for lead times on larger volume
orders, as well as other products and options.
S E L E C T I O N D ATA
1. Order code for Echotel 355 transmitter
BASIC MODEL NUMBER
3 5 5 - 5 1
3 5 5 - 5 0
24 V DC 2-wire loop powered ultrasonic non contact transmitter with HART®
24 V DC 2-wire loop powered ultrasonic non contact transmitter without HART®
ACCESSORIES
0 A
Digital display and keypad
MOUNTING / APPROVAL
Integral mount, Weatherproof
Integral mount, ATEX intrinsically safe
Integral mount, ATEX flameproof enclosure (not available with Lexan® plastic housing)
1
A
C
HOUSING / CABLE ENTRY
0
1
6
7
IP 66,
IP 66,
IP 66,
IP 66,
TRANSDUCER
B
R
3 5 5
5
0 A
Cast aluminium, 3/4" NPT cable entry (2 entries - 1 plugged)
Cast aluminium, M20 x 1,5 cable entry (2 entries - 1 plugged)
Lexan® plastic, 3/4" NPT cable entry (2 entries - 1 plugged)
Lexan® plastic, M20 x 1,5 cable entry (single entry)
60 kHz, Polypropylene, 2" NPT process connection
60 kHz, Kynar Flex®, 2" NPT process connection
complete order code for Echotel 355 transmitter
X = product with a specific customer requirement.
T R A N S M I T T E R S P E C I F I C AT I O N S
FUNCTIONAL/PHYSICAL
Description
Power (at terminals)
Weatherproof / ATEX flameproof enclosure: 16 to 36 V DC
ATEX Intrinsically Safe: 16 to 28,4 V DC
4-20 mA or 4-20 mA with HART®, 3,8 mA to 20,5 mA useable (meets NAMUR NE 43)
330 mm (13") to 6 m (20') - depending process conditions
Analog: 0,01 mA
Display: 0,1 cm (inch)
Output
Range
Resolution
Loop Resistance
400 Ω @ 20 mA - 24 V DC or 350 Ω @ 22 mA - 24 V DC
Damping
Diagnostic Alarm
User Interface
Display
Menu Language
Housing Material
Approvals
SIL (Safety Integrity Level)
Electrical Data
Equivalent Data
Shock/Vibration Class
Net Weight
Overall Dimensions
Specification
Cast aluminium
Lexan®
Adjustable 0-60 s
Adjustable 3,6 mA, 22 mA, HOLD last output
HART® communicator, PACTware® and/or 4-button keypad
2-line x 16-character LCD
English/Spanish/French/German
IP 66/Aluminium A356T6 (< 0.20 % copper) or Lexan® Thermoplastic
ATEX II 1 G Ex ia IIC T4, intrinsically safe
ATEX II 1/2 G Ex ma / d IIC T6, flameproof enclosure
Other approvals are available, consult factory for more details
Functional safety to SIL 1 as 1oo1 in accordance to IEC 61508 – SFF of 88,5 %
Ui = 28,4 V, li = 94 mA, Pi = 0,67 W // Ui = 28 V, li = 120 mA, Pi = 0,84 W
Ci = 5,5 nF, Li = 370 µH
ANSI/ISA-S71.03 SA1 (Shock), ANSI/ISA-S71.03 VC2 (Vibration)
1,45 kg (3,2 lbs) incl. Kynar Flex® transducer
0,73 kg (1,6 lbs) incl. Polypropylene® transducer
H 186 mm (7.31") x W 101 mm (3.98") - cast alu
H 166 mm (6.53") x W 96 mm (3.78") - Lexan®
PERFORMANCE
Description
Specification
Resolution
± 2,5 mm (0.1")
Linearity
± 10 mm (0,4")
Accuracy
Blocking distance
± 0,2 % of full span or 6 mm (0.24"), whichever is greater
250 mm (10")
Repeatability
± 3 mm (0.125")
Response time
< 1 second
Warm-up time
30 seconds
Ambient temp.
-40 °C to +70 °C (-40 °F to +160 °F) (weatherproof up to +80 °C (+175 °F))
Display: -20 °C to +70 °C (-5 °F to +160 °F)
0-99 %, non-condensing
-40 °C to +80 °C (-40 °F to +175 °F)
max 3 bar (43.5 psi)
Meets CE requirements (EN 61326: 1997 + A1 + A2)
Humidity
Process temp.
Process pressure
Electromagnetic compatibility
DIMENSIONS in mm (inch)
A
C
B
Cast Aluminium
Lexan® plastic
Standpipe Ø
2" (50 mm)
3" (75 mm)
4" (100 mm)
5" (125 mm)
6" (150 mm)
8" (200 mm)
2" NPT
83
(3.25)
Housing
The inside of the nozzle should be smooth. The inner rim at
the end of the nozzle must be smooth and free of burrs.
A
48
(1.9)
101 (3.99)
96 (3.78)
B
103 (4.06)
83 (3.25)
Length
38 (1.5)
Max Length
not recom.
225 mm (9")
300 mm (12")
375 mm (15")
450 mm (18")
500 mm (20")
Diameter
C
63 (2.48)
42 (1.65)
QUALITY ASSURANCE - ISO 9001:2008
THE QUALITY ASSURANCE SYSTEM IN PLACE AT MAGNETROL® GUARANTEES THE HIGHEST LEVEL OF QUALITY DURING THE DESIGN,
THE CONSTRUCTION AND THE SERVICE OF CONTROLS.
OUR QUALITY ASSURANCE SYSTEM IS APPROVED AND CERTIFIED TO ISO 9001:2008 AND OUR TOTAL COMPANY IS COMMITTED TO
PROVIDING FULL CUSTOMER SATISFACTION BOTH IN QUALITY PRODUCTS AND QUALITY SERVICE.
:2008
PRODUCT WARRANTY
ALL MAGNETROL ELECTRONIC AND ULTRASONIC LEVEL CONTROLS ARE WARRANTED FREE OF DEFECTS IN MATERIALS AND 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® INTERNATIONAL 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 THE EQUIPMENT. THERE ARE NO OTHER WARRANTIES EXPRESSED OR IMPLIED, EXCEPT, SPECIAL WRITTEN WARRANTIES COVERING SOME
MAGNETROL® PRODUCTS.
®
BULLETIN N°:
EFFECTIVE:
SUPERSEDES:
UNDER RESERVE OF MODIFICATIONS
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Tel. +32 (0)52.45.11.11 • Fax. +32 (0)52.45.09.93 • E-Mail: info@magnetrol.be
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Tel. +49 (0)2204 / 9536-0 • Fax. +49 (0)2204 / 9536-53 • E-Mail: vertrieb@magnetrol.de
ITALIA
Via Arese 12, I-20159 Milano
Tel. +39 02 607.22.98 (R.A.) • Fax. +39 02 668.66.52 • E-Mail: mit.gen@magnetrol.it
INDIA
U.A.E.
UNITED
KINGDOM
C-20 Community Centre, Janakpuri, New Delhi - 110 0058
Tel. +91 (11) 41661840 • Fax +91 (11) 41661843 • E-Mail: info@magnetrolindia.com
DAFZA Office 5EA 722 • PO Box 293671 • Dubai
Tel. +971-4-6091735 • Fax +971-4-6091736 • E-Mail: info@magnetrol.ae
OUR NEAREST REPRESENTATIVE
www.magnetrol.com
BENELUX
FRANCE
Unit 1 Regent Business Centre, Jubilee Road Burgess Hill West Sussex RH 15 9TL
Tel. +44 (0)1444 871313 • Fax +44 (0)1444 871317 • E-Mail: sales@magnetrol.co.uk
BE 51-161.1
APRIL 2010
September 2009