Warning - MSA Sirius Mode D'emploi

Figure 3-5b. Instrument in LEL Alarm
The Sirius Multigas Detector can be equipped to detect combustible
gases in the atmosphere.
• Alarms sound when concentrations reach:
• Alarm Setpoint or
• 100% LEL (Lower Explosive Limit), 5% CH 4 .
• When the combustible gas indication reaches the Alarm Setpoint:
• Alarm sounds
• Alarm lights flash
• % LEL or CH 4 flag above the concentration flashes.
• To silence the alarm, press the RESET/
NOTE: The alarm will stay silent if the alarm condition has cleared.
• When the combustible gas indication reaches 100% LEL or 5%
CH 4 , the LockAlarm
alarm and:
• Alarm sounds
• Alarm lights flash
• 100 (or 5.00 in CH 4 mode) appears on the display and
flashes.
• This alarm cannot be reset with the RESET/
If the 100% LEL or 5.00% CH 4 (by volume) alarm condition is
reached, you may be in a life-threatening situation; there is
enough gas in the atmosphere for an explosion to occur. In
addition, any rapid up-scale reading followed by a declining or
circuit locks the combustible gas reading and
TM

" WARNING

"
button.
button.
3-11