Instruction Sheet
PN
Model 404
ENDURANCE™ Conductivity Sensor
For additional information, please visit our website
at www.emersonprocess.com/raihome/liquid/.
CAUTION
SENSOR/PROCESS
APPLICATION COMPATIBILITY
The wetted sensor materials may not be compatible with process composition and operating conditions. Application compatibility is entirely the responsi- bility of the user.
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!
SENSOR SPECIFICATIONS
SPECIFICATIONS | MODEL | MODEL |
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Wetted Materials | Titanium, PEEK (glass filled), PVC, | Titanium, PEEK (glass filled), |
| EPDM, polyethylene | 303 SST, EPDM |
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Temperature Range | ||
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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) |
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| (use FNPT fittings only) |
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INSTALLATION
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.
