RKI Instruments Gas Tracer 10,000 ppm - Manual (Page 100)

93 • Replacing a Sensor 10,000 ppm Gas Tracer Operator’s Manual
dummy sensor installed.
7. Carefully insert the replacement sensor in the correct socket.
Figure 21: Replacing a Sensor
CAUTION: When replacing the ppm sensor, verify that the sensor is
properly aligned with its socket before inserting it into the
socket. The ppm combustible sensor has two non-polarized
contacts which must line up with the contacts in its socket.
Forcing the sensor into its socket may damage the sensor or the
socket.
8. Be sure that the dummy sensors are installed correctly. Make sure
the flat side is up and the hollow side is down.
9. Place the sensor gasket back into the chamber ensuring that it seals
with the sensors and the edge of the chamber.
10.Place the flow chamber in position over the sensor area and press it
into the case until it is flush with the back of the case.
11.Tighten the top screw of the flow chamber completely.
PPM
Combustible
Sensor
Flow
Chamber
HC
PPM
O2
HC
LEL
Sensor
Gasket
Knob
HC
VOL
CO
Exhaust