65-2422RK-05 H
2
S Transmitter • 17
11. Reconnect the detector leads to the detector terminal strip as shown in Table 3 and Figure
3.
12. Reinstall the junction box cover.
13. Turn on or plug in incoming power at the power source end.
14. Turn on the controller.
CAUTION:
Allow the sensor to warm up for 5 minutes
before you continue with the next step.
15. Calibrate the H
2
S transmitter as described in the Calibration section of this manual.
Replacing the H
2
S Detector
NOTE:
In most cases, it is only necessary to replace the H
2
S sensor.
1. Turn off the controller.
2. Turn off or unplug incoming power at the power source end.
3. Remove the junction box cover.
4. Disconnect the detector leads from the detector terminal strip. Note the position of the
color-coded leads as you remove them.
5. Unscrew the detector from the junction box.
6. Guide the detector leads of the replacement detector through the bottom conduit hub of the
junction box, then screw the mounting threads of the detector into the conduit hub.
7. Connect the detector leads to the detector terminal strip as shown in Table 4 and Figure 3.
8. Reinstall the junction box cover.
9. Turn on or plug in incoming power at the controller.
Table 3: Reconnecting the H
2
S Detector to the Amplifier
H
2
S Detector Lead
Amplifier Interconnect
Terminal Strip
Black
TOXIC BK
Red
TOXIC RD
Table 4: Connecting the Replacement H
2
S Detector to the Amplifier
H
2
S Detector Lead
Amplifier Interconnect
Terminal Strip
Black
TOXIC BK
Red
TOXIC RD
