Emerson 400 - Manual
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Table of Contents:
- Page 2 – FIGURE 3. Insertion in a Pipe Tee
- Page 3 – WIRE COLOR AND CONNECTIONS IN SENSOR; COLOR FUNCTION; RTD; FIGURE 7. Model 54eC Wiring; WIRING DIAGRAMS
- Page 5 – WIRING THROUGH A JUNCTION BOX; FIGURE 14. Sensor-Mounted Junction Box Wiring; PIN OUT DIAGRAM FOR 400VP; CLEANING THE SENSOR
- Page 6 – TROUBLESHOOTING; PROBLEM; FIGURE 16. Checking Temperature Element
- Page 7 – NOTES
- Page 8 – Specifications subject to change without notice.
Instruction Sheet
PN 51A-400/rev.R
December 2010
INSTALLATION
SENSOR SPECIFICATIONS
SPECIFICATIONS
MODEL 400
MODEL 400 VP
FLOW CELL PN 24091-02
Wetted Materials
titanium, PEEK (glass-filled),
titanium, PEEK (glass-filled) ,
polycarbonate, polyester,
316 SST, EPDM
316 SST, EPDM
316 SST, silicone
Temperature Range
stnd: 32-221°F (0-105°C)
32-221°F (0-105°C)
32-158°F (0-70°C)
Maximum Pressure
250 psig (1825 kPa abs)
250 psig (1825 kPa abs)
90 psig (722 kPa abs)
Vacuum Service
7.3 psia (51 kPa abs)
7.3 psia (51 kPa abs)
For additional information, please refer visit our website at
www.emersonprocess.com/raihome/liquid/
.
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 Figures 1 - 6 for recommended orientation and installa-
tion. Models 400 and 400VP sensors with 0.1 and 1.0/cm cell constants can be installed in 3/4-inch pipe tees. All Model
400 and 400VP sensors can be installed in 1-inch tees with a 3/4-inch bushing.
If the sensor is installed in a pipe tee or flow cell with the sample draining to open atmosphere, bubbles may accumulate
on the electrodes. Trapped bubbles will cause errors. As bubbles accumulate, the conductivity reading normally drifts
down. In the plastic flow cell, bubbles are readily visible. To control bubble formation, apply a small amount of back pres-
sure to the flow cell or pipe tee.
-60: 32-392°F (0-200°C)
(requires sensor-mounted
junction box)
The wetted sensor materials may not be compatible
with process com position and operating conditions.
Application compat ibility is entirely the responsi-
bility of the user.
CAUTION
SENSOR/PROCESS
APPLICATION COMPATIBILITY
WARNING
Before removing the sensor, be absolutely certain
that the process pressure is reduced to 0 psig and
the process temperature is lowered to a safe level!
WARNING
Model 400 and 400 VP
ENDURANCE
™
Conductivity Sensors
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Summary
2 MODEL 400 and 400VP WIRING FIGURE 3. Insertion in a Pipe Tee FIGURE 4. Insertion in a Pipe Tee FIGURE 5. Insertion in a Pipe Tee FIGURE 6. Insertion in a Flow Cell (PN 24091-02) ° ° FIGURE 1. Sensor Orientation FIGURE 2. Direct Insertion in a Pipe
3 WIRING MODEL 400 and 400VP WIRING WIRE COLOR AND CONNECTIONS IN SENSOR COLOR FUNCTION Gray Connects to outer electrode Clear Coaxial shield for gray wire Orange Connects to inner electrode Clear Coaxial shield for orange wire Red White with red stripe White Clear Shield for all RTD lead wires RTD ...
5 MODEL 400 and 400VP WIRING WIRING THROUGH A JUNCTION BOX Model 400-60 sensors have a junction box mounted on the end of the sensor. See Figure 14 for wiring instructions. If wiring connections are made through a remote junction box (PN 23550-00), wire point-to-point. Use cable 23747-00(factory-ter...
