MSA Orion plus Manual De Operación página 21

Figure 3-4. Instrument in LEL Alarm
The Orion plus Multigas Detector can be equipped to detect
combustible gases in the atmosphere.
• Alarms sound when concentrations reach:
• Low Alarm Setpoint, High Alarm Setpoint or
• 100% LEL (Lower Explosive Limit).
• When the combustible gas indication reaches the Low Alarm
Setpoint, the:
• Alarm sounds and Alarm lights flash
• Lo Alarm indication and % LEL label (located above the
concentration) flashes; all other non-alarming gas readings
move to the background.
• To silence the alarm, press the RESET button.
NOTE: The alarm will stay silent if the alarm condition has cleared.
• When the combustible gas indication reaches the High Alarm
Setpoint, the:
• Alarm sounds and Alarm lights flash at a higher frequency
• High Alarm indication and % LEL label (located above the
concentration) flashes; all other non-alarming gas readings
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