Technical Data
MSA
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)
5
10
10
1
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)
1
70
20
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
FASIT Srl
- Via Orsera 13/b - 34145 TRIESTE - ITALY - Tel +39 040 825604 -
www.fasit.it
-
