RKI Instruments GasWatch 2 Manual - Manual (Page 31)

GasWatch 2 Operator’s Manual Maintenance • 26
1. Verify that the GasWatch 2 is off.
2. On the back of the unit, unscrew the two screws that retain the battery
cover far enough so you can pull the cover away from the bottom case.
The screws are held captive in the battery cover if you do not unscrew
them too far.
Figure 6: Changing the Battery
3. Carefully remove the old battery.
4. Carefully install the new battery, type CR 2450, noting the polarity
indications on the battery cover and in the battery compartment. The
negative (-) side of the battery goes in first.
5. Reinstall the battery cover.
NOTE: When the battery is changed, since all power to the unit is lost
when the old battery is removed, the clock is reset to 0:00 when
the new battery is installed. The clock must be set to the correct
time after the battery is changed.
6. Press the POWER/MODE button for a few seconds.
7. The display will indicate “SET” and show the time as 0:00 with the hour
flashing.
8. Use the AIR button to increase the hour to the desired setting. If you
pass the desired setting, continue to increase the hour until it reaches
23 and then wraps around to 0, then set to the desired setting.
Note: Shown w/out
wristband.
+
Battery Cover
Lithium Battery,
CR 2450