OMG200N1.23
G200 Analyser Range
Page
22
©
Copyright 2010 Geotechnical Instruments (UK) Limited
1)
From the ‘Main Read Screen’ press the ‘Menu’ key on the instrument panel.
2)
Press ‘Key 2’ to display the ‘Utilities’ menu.
3)
Press ‘Key 2’ to select the instrument panel contrast settings and the following
screen is displayed:
Adjust Contrast
4)
Press ‘Key 3 - Scroll Left’ and ‘Key 6 - Scroll Right’ to adjust the value displayed.
5)
Press the soft-key ‘Accept’ or ‘Reject’ accordingly to accept or reject the changes.
"
Note: The manually set contrast setting is retained when the instrument is
switched off.
5.12.2.3 Alarms
The G200 range of instruments has the facility to set rising or falling alarms for the main
gas channels. The alarms for each channel can be enabled or disabled independently via
the ‘Alarms’ menu option.
Once enabled these alarms become active in the ‘Main Read Screen’; this is indicated by
a bell icon. If an alarm is triggered the screen turns red and a flashing bell icon is
displayed. The beeper is sounded until the gas level has recovered beyond the trigger
point.
•
Rising alarms are triggered when the gas level exceeds the maximum value entered
by the user.
•
Falling alarms are triggered when the gas level falls below the minimum value
entered by the user.
1)
From the ‘Main Read Screen’ press the ‘Menu’ key on the instrument panel.
2)
Press ‘Key 2’ to display the ‘Utilities’ menu.
3)
Press ‘Key 3’ to select ‘Alarms’ and the following screen is displayed:
Current Alarms – G210
