MSA ALTAIR 5X - Page 24

MSA
Description
ALTAIR 5X/ALTAIR 5X IR
24
GB
When the amount of gas detected by device is greater than the STEL limit:
- Alarm sounds, alarm lights flash.
- Alarm LEDs flash
-“STEL ALARM” message flashes.
To reset the STEL:
(1) Access the STEL page.
(2) Press the  button.
The STEL alarm is calculated over a 15-minute exposure.
STEL calculation examples:
Assume the device has been running for at least 15 minutes:
15 minute exposure of 35 ppm:
10 minute exposure of 35 ppm and 5 minutes exposure of 5 ppm:
[15 minutes x 35 ppm]
= 35 ppm
15 minutes
[10 minutes x 35 ppm] + [5 minutes x 5 ppm]
= 25 ppm
15 minutes
This page can be de-activated through MSA Link software.