MSA altair 5 - Alarm Thresholds & IR Sensor Specs

GB
MSA TECHNICAL SPECIFICATIONS/CERTIFICATIONS
ALTAIR 5 - Operating Manual 53
H
2
S CO O
2
Combustible
Measuring
range
0-200 ppm 0-1000 ppm 0-25 % Vol.
0-100% LEL
0-5.00% CH4
SO
2
NO
2
NH
3
*PH
3
0-20.0 ppm 0-20 ppm 0-100 ppm 0-5.00 ppm
HCN Cl
2
ClO
2
*
Measuring
range
0-100 ppm 0-20.0 ppm 0-1.00 ppm
*check with MSA for sensor availability
5.2. Factory-set Alarm thresholds
Sensor LOW alarm HIGH alarm STEL TWA
COMB 10 % LEL 20 % LEL -- --
CO 25 ppm 100 ppm 100 ppm 25 ppm
H
2
S 10 ppm 15 ppm 15 ppm 10 ppm
O
2
19.5 % 23.0 % -- --
SO
2
2.0 ppm 5.0 ppm 50 ppm 2.0 ppm
NO
2
2.0 ppm 5.0 ppm 5.0 ppm 2.0 ppm
NH
3
25 ppm 50 ppm 35 ppm 25 ppm
PH
3
0.3 ppm 1.0 ppm 1.0 ppm 0.3 ppm
Cl
2
0.5 ppm 1.0 ppm 1.0 ppm 0.5 ppm
ClO
2
0.1 ppm 0.3 ppm 0.8 ppm 0.1 ppm
HCN 4.5 ppm 10.0 ppm 10 ppm 4.5 ppm
CO
2
0.5 % Vol 1.5 % 0.5 % 1.5 %
IR Propane (LEL) 15 % LEL 30 % LEL
IR Butane
(25 % Vol)
15 % LEL 30 % LEL
IR Methane
(25 % Vol)
8% Vol 15 % Vol
IR Propane
(25 % Vol)
8% Vol 15 % Vol
IR Butane
(25 % Vol)
8% Vol 15 % Vol