RKI Instruments GasWatch 2 Manual - Manual (Page 34)

29 • Maintenance GasWatch 2 Operator’s Manual
Replacing the Charcoal Filter Disk
WARNING: Replace the charcoal filter disk in a non-hazardous
environment.
1. Verify that the GasWatch 2 is off.
2. With a flat blade screw driver, gently pry off the sensor cap. It snaps
onto the top case with two tabs.
3. Remove the old charcoal filter from its recess in the sensor gasket.
4. Install the new charcoal filter into its recess in the sensor gasket.
5. Replace the sensor cover into its recess in the sensor gasket.
6. Reinstall the sensor cap.
Replacing the Wristband
CAUTION: Wear protective eye wear when removing or replacing the
spring bars from the GasWatch 2. The spring bars may
become projectiles travelling at high speed in any direction if
not handled carefully while being removed or installed.
1. Remove the old wristband from the unit.
Use a spring bar tool to remove the spring bars from the unit. A spring
bar tool may be purchased from a jewelry supply shop or may be
purchased from RKI Instruments, Inc. (see Parts List at the end of this
manual).
The spring bars have a ridge at the end which are accessible between
the case and the wristband. Use the spring bar tool to catch this ridge
and push the spring bar away from its hole in the case. The wrist band
will compress to allow you to push the spring bar far enough so it will
come out.