RKI Instruments Gas Tracer - Manual (Page 195)

Gas Tracer Operator’s Manual Replacing a Sensor • 187
Replacing a Sensor
1. Verify that the Gas Tracer is off.
2. Use a screwdriver to remove the three screws holding the belt clip
to the back side of the instrument. Two of these screws also secure
the flow chamber.
3. Remove the belt clip and unscrew the remaining screw holding in
the flow chamber.
4. Grab the exhaust tube and pull it gently away from the unit to slide
the flow chamber out of the unit.
5. Gently pull on the knob of the sensor gasket to remove it. Be sure
not to lose any of the filters that are in it. The sensors will be
exposed.
6. Remove the sensor from its socket.
7. Carefully insert the replacement sensor in the correct socket.
Figure 28: Replacing a Sensor
Flow
Chamber
PPM
Combustible
Sensor
O2
HC
PPM
HC
LEL
Align Tabs in CO Sensor
with Tabs in Sockets
% LEL
Combustible Sensor
% Volume
Combustible Sensor
CO Sensor
Sensor
Gasket
Knob
HC
VOL
CO
Oxygen
Sensor
Exhaust