MSA altair 5 - Page 55

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MSA TECHNICAL SPECIFICATIONS/CERTIFICATIONS
ALTAIR 5 - Operating Manual 55
Sensor Min. alarm
setpoint
Max. alarm
setpoint
Default
calibration
values
COMB 5% LEL 60% LEL
58% LEL
CO 20 ppm 950 ppm
60 ppm
CO
2
/ MB 0-5 % Vol 0.20 % Vol 5.00 % Vol
CO
2
/ MB 0-10 % Vol 0.20 % Vol 8.00 % Vol
H
2
S 5 ppm 175 ppm
20 ppm
O
2
5.0% 24%
15.0%
SO
2
2.0 ppm 17.5 ppm
10.0 ppm
NO
2
2.0 ppm 17.5 ppm
10.0 ppm
NH
3
15 ppm 75 ppm
25 ppm
PH
3
0.3 ppm 3.75 ppm
0.50 ppm
Cl
2
0.5 ppm 17.5 ppm
10.0 ppm
ClO
2
0.1 ppm 0.9 ppm
0.8 ppm
HCN 4.5 ppm 20.0 ppm
10.0 ppm
EX sensors Min Max
IR Propane (LEL) 9 % LEL 80 % LEL
IR Butane (LEL) 9 % LEL 80 % LEL
IR Methane (25 % Vol)
1)
2.5 % Vol 25 % Vol
IR Propane (25 % Vol)
1)
5.0 % Vol 25 % Vol
IR Butane (25 % Vol)
1)
5.0 % Vol 25 % Vol
1) No alarm thresholds are adjustable for the IR sensors methane, propane and butane in
the measurement range 0 to 100 Vol. %.
This instrument is not approved for use in atmospheres containing >21 % oxygen.