MAGNETROL RPA-5100-10

Hot Tap Retractable
Installation and Operating Manual
Probe
Assembly
High Pressure
Low Pressure
Read this Manual Before Using
This manual provides information on the Hot Tap
Retractable Probe Assembly. It is important that all
instructions are read carefully before insertion and
removal. Detailed instructions are included in the General
Instructions 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.
Low Voltage Directive
For use in Installation Category II. If equipment is used
in a manner not specified by the manufacturer, protection provided by the equipment may be impaired.
Notice of Trademark, Copyright, and Limitations
Magnetrol & Magnetrol logotype, STI & STI
logotype, Thermatel, Kotron and Echotel are
registered trademarks of Magnetrol International.
Copyright © 2007 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.
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.
Warranty
All Magnetrol/STI mechanical level and flow controls are
warranted free of defects in materials or workmanship for
five full years from the date of original factory shipment.
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.
Magnetrol/STI 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/STI
products.
Safety Messages
Follow all standard industry procedures for servicing
electrical equipment when working with or around high
voltage. Always shut off the power supply before touching any components.
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/STI will repair or replace the control at no cost
to the purchaser (or owner) other than transportation.
Quality Assurance
The quality assurance system in place at Magnetrol/STI
guarantees the highest level of quality throughout the
company. Magnetrol/STI 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.
1.0
Description
The Retractable Probe Assembly can be used with
Magnetrol’s full line of insertion probes, including
Thermatel® thermal dispersion probes, Kotron® RF
capacitance probes, and Echotel ® ultrasonic contact
transducers.
The Retractable Probe Assembly permits the probe or
transducer to be installed in or removed from the vessel
or pipe while the process is in operation. After initial
installation, it is not necessary to drain or depressurize the
tank or shut down the operation to install the instrument.
The Retractable Probe Assembly is made from 316 stainless steel with optional carbon steel or stainless steel flanges
and ball valves. Various designs permit operation up to
ANSI Class 300 pound service.
1.1
Features
• Permits insertion or removal of the probe or transducer
without shutting down the process or draining the tank.
• Suitable for use with stainless steel Thermatel probes,
Echotel probes, and Kotron probes with inactive sheath.
Probes must have a 3⁄4" process connection.
• NPT or flange mounted
• Optional ball valve
• Teflon® compression rings
• Stainless steel gland assembly with choice of carbon steel or
stainless steel process connections.
• Prevents unintentional removal of instrument.
• Standard pressure to 50 psig (80 psi for TA1/TA2 probes).
High pressure design optional to class 300 pound service.
• Temperatures to +400° F (+204° C)
1.2
Pressure-Temperature Chart
HIGH PRESSURE DESIGN
1000
900
Pressure (psig)
800
700
600
500
400
Threaded or
300 lb. flange
300
200
150 lb. flange
100
0
0
41-103 Hot Tap Retractable Probe Assembly
100
200
300
Temperature ° F
400
500
1
2.0
General Instructions
2.1
Probe Insertion
1. Ensure that the ball valve is closed.
2. Loosen the seal nut of the Retractable Probe Assembly and
insert the probe.
3. Attach the safety cable to the retaining ring (low pressure)
or connect the probe to the 3⁄4" NPT connection on the
retaining bar (high pressure).
4. Carefully slide the probe past the Teflon sealing rings
ensuring that the probe tip does not hit the closed ball
valve. Optionally, the Retractable Probe Assembly may be
disassembled to slide the seal nut and Teflon v-rings over
the probe before inserting into the gland nut.
5. Slightly tighten the seal nut to permit movement of the
probe past the Teflon v-rings, but also to avoid leakage.
6. Open the isolation ball valve and insert the probe to the
desired location in the vessel. For Echotel and Thermatel
sensors, properly align the probe/transducer in the vessel.
7. Tighten the seal nut.
2.2
Probe Removal
1. Slightly loosen the seal nut to permit movement of the
probe, but also to avoid leakage.
2. Withdraw the probe from the vessel to the length
permitted by the safety chain or adjustment rods.
3. Close the isolation valve.
4. Remove the probe from the safety cable (low pressure)
or disconnect the probe from the retaining bar
(high pressure).
2
41-103 Hot Tap Retractable Probe Assembly
3.0
Reference Information
3.1
Dimensional Specifications
3/4"
3/4"
NPT
Retaining bar
Adjustment
rods
NPT
Retaining bar
Adjustment
rods
Seal
nut
Seal nut
Adjustment
nuts
Adjustment
nuts
S Dimension (minimum)
Threaded connection 4.00
Flanged connection 5.00
H
T
Ball valve
T
V
Ball valve
V
X
X
Customer
connection
Vessel wall
Y
Figure 2
Echotel or Thermatel High Pressure Design
Minimum probe length T = 2 x (X + Y)
3/4"
NPT
Safety cable
Seal nut
Ball Valve Dimensions*
Size
V
11⁄2" NPT
4.4
11⁄2" 150# flange
6.5
11⁄2" 300# flange
7.5
*Dimension of ball valve if
supplied by Magnetrol.
Customer
connection
Vessel wall
Inactive sheath
probe model
X8XA-XA1C
2.00 (50)
minimum
Y
A
Figure 3
Kotron High Pressure Design
Minimum probe length T = 2 x (A + 2 + X)
3/4"
NPT
Safety cable
Seal nut
S
11/2" NPT
12.00
(304)
11/2" NPT
V
X
Ball valve
V
Customer
connection
I
Customer
connection
Y
Figure 4
Echotel or Thermatel Low Pressure Design
Minimum probe length = S + X + Y
Vessel wall
Inactive sheath
probe model
X8XA-XA1C
NOTES:
A = Active length of Kotron probe (maximum 12.00 [305])
H = Inactive length 2 times X + Y minus A
I = Inactive length 12.00 + X + 2.00 [50] minimum
41-103 Hot Tap Retractable Probe Assembly
X
Ball valve
Vessel wall
V = Ball valve dimension (see chart)
X = Dimension from wall to top of ball valve
Y = Insertion length into tank
L
2.00 (50)
minimum
Y
A
Figure 5
Kotron Low Pressure Design
Minimum probe length
L = A + 2 + X + 12
3
3.2
Model Number
3.2.1 RPA assemblies for insertion probes other than TA1/TA2
BASIC MODEL NUMBER
RPA
Retractable probe assembly
DESIGN TYPE
inches
cm
1
A
2
B
3
C
4
D
Echotel Œ or Thermatel Œ, low pressure (up to 50 psi)
Echotel Œ or Thermatel Œ, high pressure
Kotron, low pressure  (up to 50 psi)
Kotron, high pressure 
ΠThermatel and Echotel probes must be stainless steel construction. Not suitable with high
temperature Thermatel probe.
 Kotron probes must be inactive sheath model X8XA-XA1C. Inactive sheath must clear tank wall
by 2" (refer to Dimensional Specifications on page 3). Maximum Kotron probe active length
is 12" (305 mm).
MATERIALS OF CONSTRUCTION
1
Carbon steel Ž
4
316 stainless steel
Ž Available with flange connection and high pressure design (seal nut is 316 stainless steel).
PROCESS CONNECTION
0
11⁄2" NPT
1
11⁄2" 150# flange
2
11⁄2" 300# flange
BALL VALVE
0
1
2
No ball valve supplied
Carbon steel 
316 Stainless steel 

TFE seals standard.
PROBE LENGTH
Refer to page 3 for calculation of probe length.
Maximum length 72" (1.83 meters).
NOTE: The specified probe length is used to determine the
length of the safety chain or retaining rods.
EXAMPLE:
If ordering a Thermal dispersion model TD2-7D01-030 with a
30" (76 cm) probe (model TEC-A110-030), the probe length
designation of the Retractable Probe Assembly is 030.
R
4
P
A
41-103 Hot Tap Retractable Probe Assembly
3.2
Model Number
3.2.2
RPA assemblies for TA1/TA2 Insertion probes
BASIC MODEL NUMBER
RPA
Retractable probe assembly
DESIGN TYPE
5
Low pressure (up to 80 psi, 5.5 bar), probe length in tenths of an inch
6
High pressure (up to 300# class service), probe length in tenths of an inch
E
Low pressure (up to 80 psi, 5.5 bar), probe length in centimeters
F
High pressure (up to 300# class service), probe length in centimeters
MATERIALS OF CONSTRUCTION
1
Carbon steel Œ
4
316 stainless steel
ΠAvailable with flange connection and high pressure design (seal nut is 316 stainless steel).
PROCESS CONNECTION
0
11⁄2" NPT
1
11⁄2" 150# flange
2
11⁄2" 300# flange
BALL VALVE
0
1
2
No ball valve supplied
Carbon steel 
Stainless steel 
 TFE seals standard.
PROBE LENGTH
10 to 99.9 inches (example: 12" = 120)
25 to 253 centimeters (example: 30 cm = 030)
R
P
A
41-103 Hot Tap Retractable Probe Assembly
5
ASSURED QUALITY & SERVICE COST LESS
Service Policy
Return Material Procedure
Owners of Magnetrol/STI 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.
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Regent Business Ctr., Jubilee Rd. • Burgess Hill, Sussex RH15 9TL U.K. • 01444-871313 • Fax 01444-871317
5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4028 • Fax 630-969-9489 • www.sticontrols.com
Copyright © 2007 Magnetrol International, Incorporated. All rights reserved. Printed in the USA.
Teflon® is a registered trademark of DuPont.
BULLETIN: 41-103.6
EFFECTIVE: July 2007
SUPERSEDES: October 2005