30 • Maintenance
Model GP-01 Operator’s Manual
4. Carefully remove the old sensor from the sensor socket.
NOTE: Note the orientation of the old sensor before you remove it.
5. Carefully insert the replacement sensor in the socket. Make sure the
sensor face with the yellow colored ring is facing up and that the sensor
contacts line up with the contacts in the sensor socket.
CAUTION: When replacing the sensor, verify that the sensor is properly
aligned with its socket before inserting it. Forcing the sensor
into its socket may damage the sensor or the socket.
6. Reinstall the sensor retainer.
7. Calibrate the new sensor as described in the calibration section of this
manual.
Replacing the Sensor Filters
WARNING: Replace the sensor filters in a non-hazardous
environment.
When replacing the sensor filters, it is recommended that you replace all
three filters at the same time.
1. Verify that the Model GP-01 is off.
2. With a small Phillips screwdriver, carefully unscrew the single screw
that holds the membrane retainer in place.
Line Up Sensor Contacts With
Contacts In Sensor Socket
Shown Without Sensor Retainer
Figure 11: Replacing the Sensor
