RKI Instruments Beacon 200 Rig Monitor, LEL/H2S - Manual (Page 48)

43 • Beacon 200 Rig Monitor Operator’s Manual
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 33.
Replacing the H
2
S 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 VDC
battery.
3. Remove the H
2
S detector junction box cover.
4. Disconnect the detector leads from the terminal block in the junction
box. Note the position of the color-coded leads as you remove them.
5. Unscrew the calibration cup/splash guard from the detector housing
cap.
6. Unscrew the detector from the junction box hub.
7. Guide the detector leads of the replacement detector through the
junction box hub then screw the mounting threads of the detector into
the hub.
8. Connect the detector leads to the terminal block the same way the old
detector was wired. See Figure 9 to verify the connections are correct.
9. Screw the calibration cup/splash guard onto the new detector’s housing
cap.
10.Reinstall the junction box cover.
11.Connect the battery clamps to the + and - terminals of the 12 VDC
battery.