RKI Instruments 65-2405RK-05 - Manual (Page 15)

65-2405RK-05 Combustible Gas Transmitter • 11
8. Connect the detector leads to the detector terminal strip as shown in Table 3 below
and Figure 3 on page 6 of this manual.
9. Reinstall the detector terminal strip into its socket.
10. Reinstall the junction box cover.
11. Turn on or plug in power to the controller.
12. Turn on the controller and place it into normal operation.
CAUTION: Allow the replacement detector to warm up for 5 minutes before you continue with
the next step.
13. Calibrate the transmitter as described in “Calibration” on page 13 of this manual.
Replacing the Amplifier
1. Turn off the controller.
2. Turn off or unplug power to the controller.
3. Remove the junction box cover.
4. Unplug the detector terminal strip and controller terminal strip from their sockets.
You may leave the wires connected to the terminal strips.
5. Unscrew and remove the screw with the flat and lock washers that secures the
amplifier to the junction box.
6. Remove the old amplifier.
7. Place the new amplifier in the same position as the old amplifier. A foam gasket that
orients the amplifier and keeps it from rotating is installed on the bottom of the
amplifier. Make sure the amplifier is seated flat in the junction box.
8. Install the amplifier into the junction box with the screw, lock washer, and flat washer
you removed in Step 5 above.
9. Install the detector and controller terminal strips into their sockets on the new
amplifier as shown in Figure 3 on page 6 of this manual. If controller leads or detector
leads were removed during this procedure, refer to Table 4 and Table 5 below.
Table 3:Reconnecting the Combustible Gas
Detector to the Amplifier
Detector Lead Detector Terminal Strip
Red LEL “R”
White LEL “W”
Green LEL “G”
Black LEL “B”