Remove the filter from the rubber sleeve, Remove the junction box cover, Unscrew the detector from the junction box – RKI Instruments Pioneer 4W User Manual
Page 123: Secure the junction box cover to the junction box

CO Transmitter • 20
Pioneer Operator’s Manual
11. Place the Pioneer’s power switch in the ON position.
CAUTION:
Allow the sensor to warm up for 15 minutes before you continue with the next step.
12. Calibrate the CO transmitter as described in the Calibration section of this insert.
Replacing the filter
1.
Place the Pioneer’s power switch in the OFF position.
2.
Remove the rubber sleeve that secures the filter to the CO detector.
3.
Remove the filter from the rubber sleeve.
4.
Place the replacement filter in the rubber sleeve in the same position as the filter you
removed in the previous step.
5.
Attach the rubber sleeve to the bottom of the CO detector.
6.
Place the Pioneer’s power switch in the ON position.
Replacing the CO detector
NOTE:
In most cases, it is only necessary to replace the CO sensor.
1.
Place the Pioneer’s power switch in the OFF position.
2.
Remove the junction box cover.
3.
Disconnect the detector leads from the detector terminal strip. Note the position of the
color-coded leads as you remove them.
4.
Unscrew the detector from the junction box.
5.
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.
6.
Connect the detector leads to the detector terminal strip as shown in Table 5 and
Figure 3, Wiring the CO Transmitter to the Pioneer Gas Monitor.
7.
Place the Pioneer’s power switch in the ON position.
CAUTION:
Allow the replacement sensor to warm up for 15 minutes before you continue with
the next step.
8.
Calibrate the replacement detector as described in the Calibration section of this
insert.
9.
Secure the junction box cover to the junction box.
Table 5: Connecting the Replacement CO Detector to the Amplifier
CO Detector Lead
Amplifier
Interconnect Terminal Strip
Black
TOXIC BK
Red
TOXIC RD