Peak Readings (Peak Page); Minimum Readings (Min Page); Short Term Exposure Limits (Stel Page) - MSA ALTAIR 4X Manuel D'utilisation

2.3.2 Peak Readings (PEAK page)

The peak icon shows the highest levels of gas recorded by the
instrument since turn-ON or since peak readings were reset.
To reset the peak readings:
1. Access the PEAK page.
2. Press the ▲ button.

2.3.3 Minimum Readings (MIN page)

This page shows the lowest level of oxygen recorded by the instrument
since turn-ON or since the MIN reading was reset.
The minimum icon
To reset the MIN readings:
1. Access the MIN page.
2. Press the ▲ button.

2.3.4 Short Term Exposure Limits (STEL page)

If the STEL alarm activates, leave the contaminated area
immediately; the ambient gas concentration has reached the
preset STEL alarm level. Failure to follow this warning will
cause over-exposure to toxic gases and persons relying on
this product for their safety could sustain serious personal
injury or death.
The STEL icon appears on the display to show the average
exposure over a 15-minute period.
When the amount of gas detected by the instrument is greater than the
STEL limit:
• Alarm sounds
• Alarm LEDs flash
• STEL icon flashes.
To reset the STEL:
1. Access the STEL page.
2-8
appears on the display
" WARNING