MSA altair 4x - Factory-set Alarm Thresholds and Setpoints

Technical DataMSA
ALTAIR 4X
GB
51
5.1 Factory-set Alarm Thresholds and Setpoints
Check the monitor or calibration certificate for exact alarm levels as they
vary depending on national regulations.
Sensor LOW alarm HIGH alarm STEL TWA
Ex 10 % LEL 20 % LEL -- --
EX-H 10 % LEL 20 % LEL -- --
EX-M
(%vol)
0.5 1.0 -- --
H
2
S-LC
(ppm)
510101
NO
2
(ppm) 2 5 5 2
SO
2
(ppm) 2 5 5 2
O
2
(%) 19.5 23.0 -- --
CO (ppm) 25 100 100 25
H
2
S (ppm) 10 15 15 10
Sensor Min. alarm set point Max. alarm set po Auto-cal values
Ex 5 % 60 % 58 %
EX-H 5 % 60 % 58 %
EX-M
(%vol)
0.1 3.0 2.5
H
2
S-LC
(ppm)
17020
NO
2
(ppm) 1 47.5 10
SO
2
(ppm) 1 17.5 10
O
2
(%) 5 24 15.0
CO (ppm) 10 1700 60
H
2
S (ppm) 5 175 20
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