US
MSA
TECHNICAL SPECIFICATIONS/CERTIFICATIONS
ALTAIR 5 - Operating Manual
55
5.5. Performance
Specification
Sensor Range Resolution
Reproducibility
Response
time
Combustible
Gas
0 to 100 %
COMB or
0 to 5 % CH
4
1 % COMB or
0.05 vol% CH
4
normal temperature
range:
3 % COMB,
0 % to 50 %
COMB reading
or 0.15 % CH
4
,
0.00 % to 2.50 % CH
4
5 % COMB, 50 % to
100 % COMB reading
or 0.25 % CH
4
,
2.50 % to 5.00 % CH
4
90 % of final
reading in
less or equal
than 30 sec
(normal
temperature
range)
extended
temperature
range:
5 % COMB, 0 % to
50 % COMB reading
or 0.25 % CH
4
,
0.00 % to 2.50 % CH
4
8 % COMB, 50 % to
100 % COMB reading
or 0.40 % CH
4
,
2.50 % to 5.00 % CH
4
Oxygen
0 – 25% 0
2
0.1%
0
2
0.7%
0
2
for 2 – 25%
0
2
90% of final
reading
30 seconds
(normal
temperature
range
3 minutes
(extended
temperature
range)