MSA altair 4 Service Manual

MSATechnical Data
ALTAIR 4
28
GB
7.4 Certification
See instrument label for the approvals that apply to your specific unit.
USA and Canada
Other Countries
USA EXIA
Class I, Groups A, B, C, D, F, G
Ambient temperature: -4° F to +122 °F; T4
Canada EXIA
Class I, Groups A, B, C, D
Ambient temperature: -4° F to +122 °F; T4
Only the combustible detection portion of this instrument has been assessed for-
performance by the Canadian Standard Association [C.S.A.].
Australia Ex ia IIC T4
Ambient temperature: 122° F

MSA altair 4 Specifications

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