110 • Using Maintenance Mode
GX-2012 Operator’s Manual
Updating the Data Log Interval Setting
This setting indicates how often the GX-2012 saves readings to the data logger. The
following interval times can be selected: 6 minutes, 5 minutes, 3 minutes, 1 minute, 30
seconds, 20 seconds, or 10 seconds. The factory setting is 5 minutes (300 seconds).
1. Use the AIR
or (SHIFT)
buttons to display the
LG INTVL
menu item.
2. Press and release the POWER ENTER button. The screen will indicate the current
setting.
3. Use the AIR
or (SHIFT)
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.
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
MAINTENANCE
LG INTVL
300
MAINTENANCE
LG INTVL
www.calcert.com
1.800.544.2843
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