MSA altair 4 - Factory-Set Alarm Thresholds

MSA TECHNICAL SPECIFICATIONS/CERTIFICATIONS
ALTAIR 4 - Operating Manual 45
5.2 Factory-set Alarm thresholds
Sensor
LOW
alarm
HIGH
alarm
STEL TWA
LEL 10 % LEL 20 % LEL -- --
O
2
19.5 % 23.0 % -- --
CO 25 ppm 100 ppm 100 25
H
2
S 10 ppm 15 ppm 15 10
Sensor
Min. alarm set
point
Max. alarm set
point
Auto-cal values
LEL 5 60 58%
O
2
5.0 24 15.0%
CO 20 950 60 ppm
H
2
S 5 175 20 ppm
This instrument is not approved for use in atmospheres containing >21 %
oxygen.