MSA Orion G Mode D'emploi page 44

Operating Manual
5. Push the CHANGE/RESET button to increment the
autocalibration value.
6. Push the ON-OFF/PAGE button to accept the value.
CH SENSOR - LEL DISPLAY
4
This page lets the user select whether to have the instrument
display 0 - 5% CH or 0 - 100% LEL.
4
1. Use the CHANGE/RESET button.
• ON will display 0 - 100% LEL
• OFF will display 0 - 5% CH
2. Push ON-OFF/PAGE to go to the next option.
BAR-HOLE MODE
There are two setting options to set up for the Bar-hole mode:
• The first setting option is ON/OFF and determines if the user
has access to Bar-hole mode.
• When a user is in Bar-hole mode, all alarms are OFF.
• The second setting option determines the bar-hole
sampling time.
• It is selectable in 15-second increments from 15 seconds
to 180 seconds.
OXYGEN SENSOR SET-UP
The Oxygen Sensor Set-up allows changes to be made to the:
• Oxygen sensor high alarm (oxygen enrichment)
• Oxygen sensor Low alarm (oxygen depletion).
• The Oxygen banner flashes.
1. Push the ON-OFF/PAGE button to change the oxygen settings.
2. Push the CHANGE/RESET button to skip forward to the
CO Set-up.
• The Oxygen banner turns ON solid.
• The MIN (low or deficiency alarm) flag turns ON.
3. Push the CHANGE/RESET button to increment the
MIN alarm value.
4. Push the ON-OFF/PAGE button to accept the value.
• The Oxygen banner turns ON solid
Chapter 4, Setting up the Gas Utility Instrument
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