GMI PS500 - Alarms; Gas Alarms

3-1
ALARMS
3.1 GAS ALARMS
Note: Alarms are disabled during warm-up.
If a pre-set alarm level is exceeded, the audible alarm sounds,
the LED’s ash RED and the gas range in alarm ashes on
the display.
All alarms are user congurable to meet the specic needs
of different companies.
3.1.1 Flammable LEL Alarm Limit
Up to two alarm levels are programmable, each with different
pitch and tone.
3.1.2 Over-Range Flammable Gas Alarm Function
The ammable sensor is designed for use in the LEL range
only. Exposure to high concentrations of ammable gas,
such as lighter fuel, can damage the ammable sensor. If the
ammable gas readings exceed 120% LEL, a safety alarm
will be activated. The instrument must be returned to clean
air and switched off.
3.1.3 Oxygen (O
2
) Alarm Limits
Up to one upper and two lower alarm limits are programmable,
each with different pitch and tone.
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