MSA altair 4 Service Manual

DescriptionMSA
ALTAIR 4
GB
7
2 Description
2.1 Instrument Overview
Fig. 1 Instrument view
The instrument monitors gases in ambient air and in the workplace.
It is available with a maximum of three sensors, which can display readings for four
separate gases [one Dual Toxic Sensor provides both CO and H
2
S sensing capa-
bilities in a single sensor].
The alarm levels for the individual gases are factory-set and can be changed
through the instrument Setup Menu. These changes can also be made through
MSA Link software. Ensure that the latest version of the MSA Link software has
been downloaded from MSA’s website www.msanet.com.
1 Communication 7 ON/OFF Button
2 Safe LED [green] 8 Display
3 Sensor Inlets 9 Alarm LEDs [4]
4 Horn 10 Belt Clip
5
T Button 11 Charging Connection
6
S Button 12 Screws [4]
9
9
1 2
9
3
4
5
6
7
8
3
11
10
12

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