RKI Instruments GX-2009 Manual - Manual (Page 70)

65 • 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 H2S 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 31 or “Performing a Span
Adjustment in ONE CAL” on page 36.