RKI Instruments GX-2012 Manual - Manual (Page 128)

120 • Using Maintenance Mode GX-2012 Operator’s Manual
2. Press and release the POWER ENTER button. The screen will indicate
the current setting.
3. Use the AIRS or (SHIFT)T button to display the desired setting.
4. Press and release the POWER ENTER button to save the setting and
return to the main menu.
Updating the Alarm Point Settings
The ALARM--P menu item allows you to update one or more warning,
alarm, STEL, and TWA (for CO and H
2
S) settings (the reading at which the
GX-2012 recognizes these conditions).
For the combustible gas channel, it is not possible to adjust either the
Warning or Alarm settings to be higher than 60 %LEL. In addition, the
Warning setting cannot be adjusted higher than the Alarm setting for all
channels.
NOTE: It is not necessary to adjust every setting for every channel when
you enter this menu item. All settings are shown here for example.
Table 7: Factory Set Alarm Points
Channel Warning Alarm STEL TWA
Combustible Gas 10% LEL 50% LEL N/A N/A
Oxygen 19.5% decreasing 23.5% increasing N/A N/A
CO 25 ppm 50 ppm 200 ppm 25 ppm
H
2
S 5 ppm 30 ppm 5 ppm 1 ppm
300
MAINTENANCE
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