Справочник Пользователя для Emerson Process Management 402
Instruction Manual
402 and 402VP
LIQ_MAN_ABR_402_402VP
January 2014
ENDURANCE
™
Conductivity Sensors
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CAUTION
Sensor/Process Application Compatibility
Sensor/Process Application Compatibility
The wetted sensor materials may not be compatible with process composition and operating conditions.
Application compatibility is entirely the responsibility of the user.
Application compatibility is entirely the responsibility of the user.
CAUTION
The 402 and 402VP sensors are retractable. BEFORE RETRACTING THE SENSOR, be absolutely certain the process pressure
is less than 64 psig (542 kPa abs) and the process temperature is at a safe level!
is less than 64 psig (542 kPa abs) and the process temperature is at a safe level!
Sensor Specifications
Specifications
402
402VP
Electrode
-11, -12, -13 titanium
-11, -12, -13 titanium
Insulator
-11, -12, -13 PEEK (glass filled)
-11, -12, -13 PEEK (glass filled)
Other Wetted Materials
316 SST, EPDM, graphite, Neoprene
316 SST, EPDM, graphite, Neoprene
Temperature Range
32–212 °F (0–100 °C)
32–212 °F (0–100 °C)
Maximum Pressure
200 psig (1481 kPa abs)
200 psig (1481 kPa abs)
Maximum Retraction Pressure
64 psig (542 kPa abs)
64 psig (542 kPa abs)
Sensor Orientation
Keep ¼ in. (6 mm) clearance between electrodes and piping. The electrolytes must be completely submerged in the
process liquid, i.e., to the upper edge of the guard (item 10 in Figure 3).
process liquid, i.e., to the upper edge of the guard (item 10 in Figure 3).
Figure 1. Sensor Orientation
°
°
30°
30°
trapped air
trapped sludge
Figure 2. Recommended Installation
recommended
not
recommended
flow
flow
flow