
US
TECHNICAL SPECIFICATIONS/CERTIFICATIONS
MSA
52
ALTAIR 5 - Operating Manual
5.3. IR
sensors
Gases Display
range Smallest
resolution
Response
time at 20°C
Reproducibility
of the zero
point
Reprodu-
cibility
of the
measured
value
1)
t
50
t
90
CO
2
0 – 5 % Vol
0.01 % Vol
≤
12 s
≤
36 s
≤
±
0.05 % Vol
≤ ±
5%
CO
2
0 – 10 % Vol 0.01 % Vol
≤
12 s
≤
35 s
≤
±
0.1 % Vol
≤ ±
4%
CO
2
0 – 50 % Vol 0.5 % Vol
≤
14 s
≤
36 s
≤
±
1.0 % Vol
≤ ±
4%
C
3
H
8
0 – 100% LEL 1 % LEL
≤
11 s
≤
32 s
≤
±
3 % LEL
≤ ±
8%
C
3
H
8
0 – 25 % Vol 0.5 % Vol
≤
12 s
≤
35 s
≤
±
0.5 % Vol
≤ ±
4%
C
3
H
8
0 – 100 % Vol 1 % Vol
≤
12 s
≤
36 s
≤
±
3 % Vol
≤ ±
8%
C
4
H
10
0 – 100% LEL 1 % LEL
≤
11 s
≤
32 s
≤
±
3 % LEL
≤ ±
8%
C
4
H
10
0 – 25 % Vol 0.5 % Vol
≤
12 s
≤
35 s
≤
±
0.5 % Vol
≤ ±
4%
C
4
H
10
0 – 100 % Vol 1 % Vol
≤
12 s
≤
36 s
≤
±
3 % Vol
≤ ±
8%
CH
4
0 – 25 % Vol 0.5 % Vol
≤
12 s
≤
35 s
≤
±
0.5 % Vol
≤ ±
5%
CH
4
0 – 100 % Vol 1 % Vol
≤
11 s
≤
34 s
≤
±
5 % Vol
≤ ±
10%
1) Data in % of measurement range