Rosemount Analytical 140, 142 Operating Manual
Instruction Manual
IQ-MAN-140
L
Rev. F
May 2017
Rosemount
™
140/141/142
Contacting Conductivity Sensors
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Essential Instructions
Read this page before proceeding!
Emerson designs, manufactures and tests its products to meet many national and international stan-
dards. Because these sensors are sophisticated technical products, you MUST properly install, use,
nd maintain them to ensure they continue to operate within their normal specifications. The
a
following instructions MUST be adhered to and integrated into your safety program when installing,
using, and maintaining Rosemount products. Failure to follow the proper instructions may cause
any one of the following situations to occur: loss of life; personal injury; property damage; damage
to this sensor; and warranty invalidation.
• Read all instructions prior to installing, operating, and servicing the product.
• If you do not understand any of the instructions, contact your Emerson representative for
clarification.
• Follow all warnings, cautions, and instructions marked on and supplied with the product.
• Inform and educate your personnel in the proper installation, operation, and maintenance
of the product.
• Install your equipment as specified in the Installation Instructions of the appropriate
Instruction Manual and per applicable local and national codes. Connect all products to
the proper electrical and pressure sources.
• To ensure proper performance, use qualified personnel to install, operate, update,
program, and maintain the product.
• When replacement parts are required, ensure that qualified people use replacement parts
specified by Emerson. Unauthorized parts and procedures can affect the product's
performance, place the safe operation of your process at risk, and VOID YOUR WARRANTY.
Third-party substitutions may result in fire, electrical hazards, or improper operation.
• Ensure that all equipment doors are closed and protective covers are in place, except when
maintenance is being performed by qualified persons, to prevent electrical shock and
personal injury.
The information contained in this document is subject to change without notice.
CAUTION
Sensor/Process Application Compatibility
The wetted sensor materials may not be compatible with process composition and operating
conditions. Application compatibility is entirely the responsibility of the user.
CAUTION
Before removing the sensor, be absolutely certain the process pressure is reduced to 0 psig and the
process temperature is at safe level.
About This Document
his manual contains instructions for installation and operation of the Rosemount
T
140/141/142 Contacting Conductivity Sensor
The following list provides concerning all revisions of this document.
Rev. Level Date Notes
F 05/17 Reformatted to reflect the latest Emerson documentation style
Specifications and Wiring Diagrams.
Instruction Manual Table of Contents
LIQ-MAN-140 May 2017
Contents
Section 1: Specifications
1.1 Specifications ......................................................................................................1
Section 2: Installation
2.1 Unpacking and Inspection ...................................................................................5
2.2 Sensor Installation ...............................................................................................5
2.3 Installation - Rosemount 140 Sensor with Ball Valve Kit (PN 23724-00) ................5
2.4 Installation - Rosemount 141 Sensor ....................................................................6
2.5 Installation - Rosemount 142 Sensor ....................................................................7
Section 3: Wiring
3.1 Wiring for Rosemount 140/141/142 ....................................................................9
Section 4: Retracting and Inserting the Rosemount 140 Sensor
4.1 Retracting the Sensor ........................................................................................13
4.2 Inserting the Sensor...........................................................................................13
Section 5: Removing and Reinstalling the Rosemount 142 Sensor
5.1 Removing the Sensor .........................................................................................15
5.2 Reinstalling the Sensor.......................................................................................15
Section 6: Calibration and Maintenance
6.1 Calibrating the sensor........................................................................................17
6.2 Cleaning the Sensor ...........................................................................................21
6.3 Checking the Rosemount 140 Retraction Restraint ............................................21
6.4 Replacing Rosemount 140 Sensor Seal ...............................................................21
Section 7: Accessories
7.1 Accessories........................................................................................................23
Section 8: Troubleshooting
8.1 Troubleshooting ................................................................................................25
Table of Contents i
Table of Contents Instruction Manual
May 2017 LIQ-MAN-140
ii Table of Contents
Instruction Manual Specifications
LIQ-MAN-140 May 2017
Section 1: Specifications
1.1 Specifications
Table 1-1: Rosemount 140 contacting conductivity sensor specifications
Wetted Materials
Electrodes 316 stainless steel
Body 316 stainless steel
Insulator PEEK
O-rings Viton
Temperature range
Standard 32 °F to 302 °F (0 °C to 150 °C) maximum
High temperature 32 °F to 392 °F (0 °C to 200 °C) maximum
Pressure
100 psig (791 kPa abs) maximum
Maximum retraction pressure
100 psig (791 kPa abs)
Vacuum
At 1.6 in. Hg (5.2 kPa) air leakage is less than 0.005 SCFM (0.00014 m3/min)
Junction box
cast aluminum
Process connection
1 in. MPT through 1inch full port ball valve (retractable)
Weight/Shipping Weight
5 lb /6 lb (2.5 kg / 3.0 kg)
Weights rounded up to nearest whole lb or 0.5 kg
Specifications 1
Specifications Instruction Manual
May 2017 LIQ-MAN-140
Table 1-2: Rosemount 141 contacting conductivity sensor specifications
Wetted Materials
Electrodes 316 stainless steel
ody
B
Insulator PEEK
O-rings Viton
Temperature and pressure
See Figure 1-1
Vacuum
At 1.6 in. Hg (5.2 kPa) air leakage is less than 0.005 SCFM (0.00014 m3/min)
Junction box
cast aluminum
Process connection
¾ in. MPT
Weight/Shipping Weight
2 lb / 3 lb (1.0 kg / 1.5 kg)
Weights rounded up to nearest whole lb or 0.5 kg
16 stainless steel
3
2 Specifications
Instruction Manual Specifications
LIQ-MAN-140 May 2017
Table 1-3: Rosemount 142 contacting conductivity sensor specifications
Wetted Materials
Electrodes 316 stainless steel
ody
B
Insulator PEEK (high temperature option)
O-rings Viton
Temperature and Pressure
See Figure 1-1
Vacuum
At 1.6 in. Hg (5.2 kPa) air leakage is less than 0.005 SCFM (0.00014 m3/min)
Junction box
cast aluminum
Process connection
¾ in. MPT
Weight/Shipping Weight
2 lb/3 lb (1.0 kg / 1.5 kg)
Weights rounded up to nearest whole lb or 0.5 kg
16 stainless steel
3
PCTFE (low temperature option)
Table 1-4: Specifications for PN 23724-00 ball valve kit
Wetted Materials
316 stainless steel except Teflon® seat and seals in ball valve
Figure 1-1 Rosemount 141 and 142 sensor pressure/temperature graphs
Heading title 3
Specifications Instruction Manual
May 2017 LIQ-MAN-140
4 Specifications
Instruction Manual Installation
LIQ-MAN-140 May 2017
Section 2: Installation
2.1 Unpacking and Inspection
Inspect the outside of the carton for any damage. If damage is detected, contact the carrier
immediately. Inspect the instrument and hardware. Make sure all items in the packing list are
present and in good condition. Notify the factory if any part is missing.
2.2 Sensor Installation
Keep 1/4 in. (6 mm) clearance between electrodes and piping. The electrodes must be completely
submerged in the process liquid, i.e., to the level of the threaded connection. See Figure 2-1 for
recommended orientation.
If the sensor is installed in a side stream with the sample draining to open atmosphere, bubbles
may accumulate on the electrodes. Trapped bubbles will cause errors. As bubbles accumulate, the
conductivity reading drops. To control bubble formation, apply a small amount of back pressure to
the drain.
Figure 2-1 Sensor orientation
2.3 Installation - Rosemount 140 Sensor with Ball Valve
Kit (PN 23724-00) *
1. Install the sensor in either a 1 in. NPT weldalet or in a 1 in. pipe tee.
2. Remove the plastic shipping cap from the sensor.
3. Screw the 1 in. hex nipple into the weldalet or pipe tee. See Figure 2-2. Use pipe tape on
the threads.
4. Position the sensor for easy access to the ball valve handle, sensor compression fitting nut,
and junction box.
5. Make sure the ball valve is in the fully open position.
6. Finger tighten the sensor compression fitting nut. Do not over tighten because the next
step is to press the sensor into the process pipe.
7. Insert the sensor tube until the sensor tip is no closer than 1 in. (25 mm) from the far wall
of the process pipe. See Figure 2-2.
8. Tighten the sensor compression fitting nut to hold the sensor tip in position.
* If the ball valve assembly is already in place and the process line is pressurized, refer to
Inserting the Sensor.
Installation 5
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