MSA altair 4 Service Manual

DescriptionMSA
ALTAIR 4
GB
9
2.3 On-Screen Indicators
Fig. 2 Display
1 Graphic Symbols 3 Gas Concentration
2 Gas Type
Alarm Symbol – Indicates alarm state.
Motion Alert – Indicates Motion Alert is active.
Bump Check Symbol – Indicates successful bump or cal.
Indicates required interaction.
Battery Condition – Indicates the battery charge level.
Sensor Labels.
Cal Gas Cylinder – Indicates cal gas must be applied.
No Gas Cylinder – Indicates cal gas should not be applied and instru-
ment must be exposed to fresh air.
COMB/EX
O2
H2S
CO
1
2
3
O2
CO
H2S
COMB/EX

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