RKI Instruments Beacon 200 Rig Monitor, LEL/H2S - Manual (Page 47)

Beacon 200 Rig Monitor Operator’s Manual • 42
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 from the detector.
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 onto the new detector.
10.Reinstall the junction box cover.
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 detector to warm up for 5 minutes
before you continue with the next step.
13.Calibrate the replacement detector as described in the Calibration
section of this manual.
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 4 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