Emerson 142 - Manuals - manualsarea.com

Page 2 - INSTALLATION; sensor into the process pipe.; Sensor Section on page 6.; SIDE VIEW

Keep 1/4 inch (6 mm) clearance between electrodesand piping. The electrodes must be completely sub-merged in the process liquid, i.e., to the level of thethreaded connection. See Figure 1 for recommendedorientation. If the sensor is installed in a side stream with thesample draining to open atmosphe...

Page 3 - FIGURE 3. Installing model 141 sensor; INSTALLATION – 141 SENSOR; fitting until the sensor is correctly positioned.; FIGURE 4. Installing model 142 sensor

3 MODEL 140,141, and 142 sensors INSTALLATION FIGURE 3. Installing model 141 sensor DWG. NO. REV. 40014204 B INSTALLATION – 141 SENSOR 1. Install the sensor in a 3/4-inch NPT weldalet or in a 1-inch pipe tee.2. Remove the plastic shipping cap from the sensor.3. Screw the sensor into the fitting. Use...

Page 4 - WIRING; WIRE COLOR AND CONNECTIONS IN SENSOR; COLOR FUNCTION; FIGURE 6. Model 54eC Wiring; WIRING DIAGRAMS

RTD RTD in RTD sense RTD return MODEL 140,141, and 142 sensors WIRING WIRING All 140 series sensors have a junction box mounted on the back of the sensor. Wiring connections in the junction boxare shown in Figure 5. Figure 5. Sensor junction box wiring. Terminals in thejunction box are not numbered....

Page 6 - RETRACTING AND INSERTING THE MODEL 140 SENSOR; RETRACTING THE SENSOR; sensor tightening procedure illustrated in Figure 2.; CAUTION; INSERTING THE SENSOR; DO NOT open the ball valve.; WARNING

RETRACTING AND INSERTING THE MODEL 140 SENSOR RETRACTING THE SENSOR 1. Push in on the sensor junction box and slowly loosen the sensor compression fitting nut by reversing the sensor tightening procedure illustrated in Figure 2. 2. When the sensor compression nut is completely unscrewed, slowly ease...

Page 7 - Slowly open the valve.; Stand clear of the sensor.; REMOVING AND REINSTALLING THE MODEL 142 SENSOR; REMOVING THE SENSOR

MODEL 140,141, and 142 sensors WIRING 7 3. Slowly open the valve. 4. Insert the sensor up to the desired insertion depth and turn the sensor compression fitting nut until it is finger tight. 5. Position the entire sensor for easy access to the ball valve handle, sensor compression fitting nut and J-...

Page 8 - CALIBRATION

MODEL 140,141, and 142 sensors CALIBRATION 8 CALIBRATION Model 140 sensors are not calibrated at the factory. The cell constant on the label is a nominal value only. The truecell constant can differ from the nominal value by as much as ± 5%. For improved accuracy, calibrate the sensor using either a...

Page 9 - MAINTENANCE; CLEANING THE SENSOR

9 MODEL 140,141, and 142 sensors MAINTENANCE MAINTENANCE CLEANING THE SENSOR Use a warm detergent solution and a soft brush or pipe cleaner to remove oil and scale. Isopropyl alcohol can also beused to remove oily films. Avoid using strong mineral acids to clean conductivity sensors. CHECKING MODEL ...

Page 10 - PN; Ball valve kit for Model 140 sensor; REPLACEMENT PARTS

10 MODEL 140,141, and 142 sensors ACCESSORIES PN Description 23724-00 Ball valve kit for Model 140 sensor 23730-00 Process compression fitting kit (3/4-inch NPT) for Model 140 sensor 23731-00 Process fitting rebuild kit for Model 140 sensor (includes ferrule, split ring, O-ring, lubricant) 9310120 J...

Page 11 - PROBLEM; FIGURE 14. Checking Temperature Element

11 TROUBLESHOOTING PROBLEM PROBABLE CAUSE SOLUTION Off-scale reading Wiring is wrong. Verify wiring. Temperature element is open or shorted. Check temperature element for open or short circuits. See Figure 14. Sensor is not in the process stream. Be sure the sensor is completely submerged in the pro...

Page 12 - Specifications subject to change without notice.

Credit Cards for U.S. Purchases Only. The right people,the right answers,right now. ON-LINE ORDERING NOW AVAILABLE ON OUR WEB SITE http://www.raihome.com Specifications subject to change without notice. 8 Emerson Process Management 2400 Barranca ParkwayIrvine, CA 92606 USATel: (949) 757-8500Fax: (94...