66 • Maintenance
GX-2009 Operator’s Manual
CAUTION:
When replacing a sensor, verify that the sensor is properly aligned with its
socket before inserting it into the socket. The CO and H
2
S sensors have
alignment slots which match up with alignment tabs in the sockets. The
combustible gas sensor has two non-polarized contacts which must line up with
the contacts in the socket. Forcing a sensor into its socket may damage the
sensor or the socket.
6. Snap the sensor retainer back onto the case, then secure it to the GX-2009 with the two
screws. The sensor retainer’s tabs that snap onto the case are keyed so you can only snap it
to the case one way.
7. Calibrate the new sensor as described in “Performing a Span Adjustment in AUTO CAL”
on page 35 or “Performing a Span Adjustment in ONE CAL” on page 40.
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