MSA altair 4 - Page 48

TECHNICAL SPECIFICATIONS/CERTIFICATIONS MSA
48
ALTAIR 4 - Operating Manual
5.4.3 Carbon Monoxide
Range
0 - 999 ppm CO
Resolution
1 ppm CO, for 0 to 500 ppm CO
Reproducibility ± 5 ppm CO or 10 % of reading, whichever
is greater (normal temperature range)
0 to 300 ppm CO,
± 15 % >300 ppm CO
(normal temperature range)
± 10 ppm CO or 20 % of reading, whichever
is greater (extended temperature range)
Response time 90% of final reading in less than or equal to
30 seconds (normal operation range)
60 seconds (normal temperature range)
5.4.4 Hydrogen Sulfide
Range
0 - 200 ppm H
2
S
Resolution
1 ppm H
2
S, for 3 to 200 ppm H
2
S
Reproducibility ± 2 ppm H
2
S or 10 % of reading, whichever
is greater (normal temperature range)
0 to 100 ppm H
2
S,
± 15 % >100 ppm H
2
S
(normal temperature range)
± 5 ppm H
2
S or 10 % of reading, whichever
is greater (extended temperature range)
Response time 90% of final reading in less than or equal to
30 seconds (normal operation range)
60 seconds (normal temperature range)