Emerson 404 - Manual
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Table of Contents:
- Page 2 – WIRING DIAGRAMS; FIGURE 2. Model 54eC Wiring; WIRING; WIRE COLOR AND CONNECTIONS IN SENSOR; COLOR FUNCTION; RTD
- Page 3 – WIRING THROUGH A JUNCTION BOX
- Page 4 – CLEANING THE SENSOR
- Page 5 – TROUBLESHOOTING; PROBLEM; FIGURE 9. Checking Temperature Element
- Page 6 – NOTES
- Page 8 – Specifications subject to change without notice.
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!
Model 404
ENDURANCE
™
Conductivity Sensor
Instruction Sheet
PN 51A-404/rev.M
December 2010
If the sensor is installed in a sidestream
with the sample draining to open atmos-
phere, bubbles may accumulate on the
electrodes. Trapped bubbles will cause
errors. Normally, as bubbles accumu-
late the conductivity reading drifts down.
To control bubble formation, apply a small
amount of back pressure to the sensor.
SENSOR SPECIFICATIONS
SPECIFICATIONS
MODEL 404-16 (PVC body)
MODEL 404-17 (stainless steel body)
Wetted Materials
Titanium, PEEK (glass filled), PVC,
Titanium, PEEK (glass filled),
EPDM, polyethylene
303 SST, EPDM
Temperature Range
32-140°F (0-60°C)
32-212°F (0-100°C)
Maximum Pressure
20 psig (239 kPa abs) at 60°C (140°F)
100 psig (791 kPa abs)
100 psig (791 kPa abs) at 25°C (77°F)
(use FNPT fittings only)
FIGURE 1. Installation of Model 404 Sensor
For additional information, please visit our website
at
www.emersonprocess.com/raihome/liquid/
.
INSTALLATION
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
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Summary
2 MODEL 404 WIRING WIRING DIAGRAMS FIGURE 2. Model 54eC Wiring FIGURE 3. Model 56 and 1056 Wiring 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...
3 MODEL 404 INSTALLATION FIGURE 5. Model Xmt-C-10 Wiring (Panel) FIGURE 6. Model Xmt-C-11 Wiring (Pipe or Wall) FIGURE 7. Model 5081-C Wiring FIGURE 8. Model 6081-C Wiring WIRING THROUGH A JUNCTION BOX If wiring connections are made through a remote junction box (PN 23550-00), wire point-to-point. U...
4 MODEL 404 WIRING CLEANING THE SENSOR The 404-17 (stainless steel body) sensor can be taken apart for cleaning. However, in some cases, disassembling andreassembling the sensor can cause the cell constant to change as much as 1%. For maximum accuracy, the cell con-stant should be rechecked after th...
