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MSAContents

ALTAIR 4

7 Technical Data ...................................................................................................... 24

7.1 Technical Specifications ............................................................................. 24

7.2 Factory-set Alarm thresholds ...................................................................... 25

7.3 Performance Specifications ........................................................................ 26

7.4 Certification ................................................................................................. 28

8 Ordering Information ........................................................................................... 30

9 Appendix ............................................................................................................... 31

9.1 Calibrations ................................................................................................. 31

9.2 Fresh Air Setup [FAS] ................................................................................. 32

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General

Operating Temperature	-20°C to 50°C (-4°F to 122°F)
Ingress Protection	IP67
Type	Multi-gas Detector
Gases Detected	LEL, O2, CO, H2S
Display	LCD
Weight	Approx. 220g (with battery)
Sensor Type	Electrochemical (for H2S, CO, and O2); Catalytic Bead (for LEL)
Alarm Type	Audible, Visual, Vibrating
Detection Range	O2: 0-30% vol, LEL: 0-100% LEL, CO: 0-999 ppm, H2S: 0-500 ppm
Humidity Range	15% to 90% RH non-condensing
Certifications	UL, CSA, ATEX, IECEx