RKI Instruments Beacon 200 RIg Monitor, H2S/H2S - Manual (Page 45)

Beacon 200 Rig Monitor Operator’s Manual • 40
10. Close and secure the housing door.
Replacing the Plug-In H
2
S Sensor
1. Open the housing door of the Rig Monitor, then place the power switch
in the OFF position.
2. Disconnect the battery clamps from the + and - terminals of the 12
VDC battery.
3. Unscrew the calibration cup/splash guard from the detector.
4. Unscrew the detector housing cap from the housing body. Make sure
not to lose the cap gasket. See Figure 3 for an illustration of the H
2
S
detector.
5. Unplug and remove the sensor with the rubber boot and spacer
attached.
6. Remove the rubber boot and spacer from the old sensor.
7. Install the spacer and rubber boot onto the replacement sensor’s face.
8. Carefully match the replacement sensor’s male pins with the 4-socket
pattern in the top section and plug it in.
9. Make sure the cap gasket is in place and screw the detector housing
cap back onto the housing body.
10. Screw the calibration cup/splash guard back onto the detector housing
cap.
11. Connect the battery clamps to the + and - terminals of the 12 VDC
battery.
12. Place the Rig Monitor’s power switch in the ON position, then verify
that the PILOT light is on.
CAUTION: Allow the replacement sensor to warm up for 15 minutes
before you continue with the next step.
13. Calibrate the detector as described in “Calibration Program” on
page 32.
Replacing the Gas Detector
NOTE: In most cases, it is only necessary to replace the H
2
S sensor.
1. Open the housing door of the Rig Monitor, then place the power switch
in the OFF position.
2. Disconnect the battery clamps from the + and - terminals of the 12