Honeywell BW RigRat User Manual page 56

Removing Sensors
WARNING! Do not replace sensors in hazardous locations.
All sensors are located inside the sensor compartment on the rear of the instrument. To access the
sensors:
1. Turn off the instrument.
2. Remove the four screws that hold the sensor cover.
3. Lift off the cover.
4. Carefully lift out each sensor you wish to inspect or replace.
Sensor slots are keyed so that they can only accommodate specific types of sensors:
BW RigRat User's Guide
56
1 Slot 1: IR, IR low-power, or CO
2 Slot 2: PID or IR or CO
3 Slot 3: Catalytic combustion LEL or
EC
4 Slot 4: IR or CO or EC
2
5 Slot 5: EC
6 Slot 6: EC
2
or EC
2