Emerson 228 - Manuals - manualsarea.com

Page 2 - INSTALLATION; Cutting the cable may void the warranty.

MODEL 228 INSTALLATION INSTALLATION Keep at least 1 in. (2.5 cm) between the sensor and pipe walls. If the clearance is too small, calibrate the sensorin place. Ensure that the sensor is completely submerged in liquid. Mounting the sensor in a vertical pipe run withthe flow from bottom to top is bes...

Page 6 - FIGURE11. Wiring sensors through a remote junction box; WIRING THROUGH A REMOTE JUNCTION BOX

MODEL 228 WIRING FIGURE11. Wiring sensors through a remote junction box Wire sensors point to point. For wiring at the analyzer end, refer to the appropriate analyzer wiring diagram. For interconnecting cable 23294-00, use the 2265-54 wiring diagram. For interconnecting cable 23294-04 and 23294-05, ...

Page 7 - INSERTION - RETRACTION ASSEMBLIES; the sensor an additional half turn once the gasket is seated.; with the following exception:; Insert the sensor and tube assembly into the retraction chamber.; INSTALLATION REQUIREMENTS

7 MODEL 228 USE OF INSERTION - RETRACTION ASSEMBLIES INSERTION - RETRACTION ASSEMBLIES MANUAL RETRACTION ASSEMBLY (PN 23311-01) INSTALLATION 1. Loosen the collet nut and retract the sensor tube into the retraction chamber. See Figure 14. 2. Loosen the union nut and separate the retraction chamber fr...

Page 8 - FIGURE 14. Manual Retraction Assembly; RETRACTION; Place the sensor; NOTE; WARNING; Retraction chamber contents may be under pressure.

MODEL 228 USE OF INSERTION - RETRACTION ASSEMBLIES FIGURE 14. Manual Retraction Assembly MILLIMETER INCH RETRACTION 1. Make certain that the system pressure is less than35 psig (342 kPa abs). Push in on the sensor usingthe top of the junction box. Slowly loosen the colletnut. 2. When the collet nut ...

Page 9 - Tighten the union nut.; Do not loosen cap screws or collar when pressurized.

9 MODEL 228 USE OF INSERTION - RETRACTION ASSEMBLIES INSTALLATION 1. Thread the sensor cable through the tube into thejunction box. Screw the sensor into the tube. Handtighten the sensor an additional half turn once the gas-ket is seated. See Figure 15. 2. Terminate the sensor wiring in the junction...

Page 10 - REPLACING SEALS IN MANUAL AND MECHANICAL RETRACTION ASSEMBLIES.

MODEL 228 USE OF INSERTION - RETRACTION ASSEMBLIES 1. Retract the sensor into the retraction chamber and fully close the ball valve. 2. Drain the retraction chamber contents using the 1/8 in. flush ports. 3. (Mechanical) Mark the location of the nut housing cap and retraction collar on the sensor tu...

Page 11 - FIGURE 16. Mechanical Retraction Assembly Replacement Parts

11 MODEL 228 USE OF INSERTION - RETRACTION ASSEMBLIES FIGURE 16. Mechanical Retraction Assembly Replacement Parts

Page 12 - FIGURE 17. Manual Retraction Assembly Replacement Parts

FIGURE 17. Manual Retraction Assembly Replacement Parts MODEL 228 USE OF INSERTION - RETRACTION ASSEMBLIES 12

Page 13 - CALIBRATION; If wall effects are present; , calibrating a toroidal sensor with a standard

13 MODEL 228 CALIBRATION CALIBRATION The nominal cell constant of the Model 228 sensor is 2.7/cm. The error in the cell constant is about ± 10%, so con- ductivity readings made using the nominal cell constant will have an error of at least ± 10%. Wall effects, discussed below, will likely make the e...

Page 14 - CAUTION; TROUBLESHOOTING; PROBLEM

MAINTENANCE Generally, the only maintenance required is to keep the opening of the sensor clear of deposits. Cleaningfrequency is best determined by experience. MODEL 228 MAINTENANCE WARNING Retraction chamber contents may be under pressure. CAUTION Be sure sensor has been cleaned of process liquidb...

Page 16 - ON-LINE ORDERING NOW AVAILABLE ON OUR WEB SITE

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 Emerson Process Management 2400 Barranca ParkwayIrvine, CA 92606 USATel: (949) 757-8500Fax: (949) 474-7250 http://www.raihome.com © Rosemount Anal...