MSA altair 4 User manual
Service Manual
ALTAIR 4
Four Gas Multigas Detector
Order No. 10103972/00
MSA AUER GmbH
Thiemannstrasse 1
D-12059 Berlin
Germany
© MSA AUER GmbH. All rights reserved
ContentsMSA
ALTAIR 4
GB 3
Contents
1 Safety Regulations ................................................................................................. 5
1.1 Correct Use .................................................................................................. 5
1.2 Liability Information ....................................................................................... 6
1.3 Safety and Precautionary Measures to be Adopted ..................................... 6
2 Description ............................................................................................................. 7
2.1 Instrument Overview ..................................................................................... 7
2.2 Device Hardware Interfaces ......................................................................... 8
2.3 On-Screen Indicators .................................................................................... 9
2.4 Battery Care ............................................................................................... 10
3 Disassembly/Assembly ....................................................................................... 11
3.1 General ....................................................................................................... 11
3.2 Disassembly ............................................................................................... 11
3.3 Assembly .................................................................................................... 12
4 Changing Components ....................................................................................... 13
4.1 Changing the Front Case ........................................................................... 13
4.2 Changing the Display ................................................................................. 13
4.3 Changing the Sensor Filters and the Sensor Gasket ................................. 14
4.4 Changing the Sensors ................................................................................ 14
4.5 Replacing the PCB and Battery assembly .................................................. 15
5 Instrument Setup ................................................................................................. 18
6 Calibration ............................................................................................................ 19
6.1 General ....................................................................................................... 19
6.2 Zero Calibration .......................................................................................... 19
6.3 Span Calibration ......................................................................................... 21
6.4 Fresh Air Setup [FAS] ................................................................................. 22
MSAContents
ALTAIR 4
4GB
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
Safety RegulationsMSA
ALTAIR 4
GB 5
1 Safety Regulations
1.1 Correct Use
The ALTAIR 4 Multigas Detector is intended for use by trained and qualified per-
sonnel. It is designed to be used when performing a hazard assessment to:
- assess potential worker exposure to combustible and toxic gases and vapours
as well as low level of oxygen.
- determine the appropriate gas and vapour monitoring needed for a workplace.
The ALTAIR 4 Multigas Detector can be equipped to detect:
- Combustible gases and certain combustible vapours
- Oxygen-deficient or oxygen-rich atmospheres
- Specific toxic gases for which a sensor is installed.
It is imperative that this operating manual be read and observed when using the
product. In particular, the safety instructions, as well as the information for the use
and operation of the product, must be carefully read and observed. Furthermore,
the national regulations applicable in the user's country must be taken into account
for a safe use.
Alternative use, or use outside this specification will be considered as non-compli-
ance. This also applies especially to unauthorised alterations to the product and to
commissioning work that has not been carried out by MSA or authorised persons.
While the instrument can detect up to 25 % oxygen in ambient air, it is
approved for use only up to 21 % oxygen.
Danger!
This product is supporting life and health. Inappropriate use, mainte-
nance or servicing may affect the function of the device and thereby se-
riously compromise the user's life.
Before use the product operability must be verified. The product must
not be used if the function test is unsuccessful, it is damaged, a compe-
tent servicing/maintenance has not been made, genuine MSA spare
parts have not been used.
MSASafety Regulations
ALTAIR 4
6GB
1.2 Liability Information
MSA accepts no liability in cases where the product has been used inappropriately
or not as intended. The selection and use of the product are the exclusive respon-
sibility of the individual operator.
Product liability claims, warranties also as guarantees made by MSA with respect
to the product are voided, if it is not used, serviced or maintained in accordance with
the instructions in this manual.
1.3 Safety and Precautionary Measures to be Adopted
Sensor maintenance
Do not block sensor openings as this may cause inaccurate readings. Do not press
on the face of the sensors, as this may damage them and cause erroneous read-
ings. Do not use compressed air to clean the sensor holes, as the pressure may
damage the sensors.
Observe proper battery maintenance
Use only battery chargers made available by MSA for use with this instrument; oth-
er chargers may damage the battery pack and the unit. Dispose of in accordance
with local health and safety regulations.
Use of the GALAXY Automated Test System is an alternate approved method for
charging ALTAIR 4 instruments.
Be aware of the procedures for handling electrostatically sensitive
electronics
The instrument contains electrostatically sensitive components. Do not open or re-
pair the unit without using appropriate electrostatic discharge [ESD] protection. The
warranty does not cover damage caused by electrostatic discharges.
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 H2S 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
311
10
12
MSADescription
ALTAIR 4
8GB
2.2 Device Hardware Interfaces
Instrument operation is dialog driven from the display with the aid of the three func-
tion buttons [see Fig. 1].
Button Definitions
LED Definitions
Button Description
ON/OFF The ON/OFF button is used to turn instrument on or off and to con-
firm user action selections.
When the Sbutton and the ON/OFF button are pressed simultane-
ously for instrument start-up, the Options Setup Mode displays.
TThe Tbutton is used to move forward through data screens in
measuring mode, or as page back and to decrease the values in
set-up mode. Holding this button for 3 seconds while in Normal
Measure Mode will activate the InstantAlert alarm.
SThe Sbutton is used to reset peak, STEL TWA and acknowledge
alarms [where possible] or access calibration in measuring mode. It
is also used as page up or to increase the values in set-up mode.
LED Description
GREEN The Safe LED flashes once every 15 seconds to notify the user that
the instrument is on and operating.
This option can be turned off through the MSA Link software.
RED The red LEDs are visual indications of an alarm condition or any
type of error in the instrument.
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
MSADescription
ALTAIR 4
10 GB
2.4 Battery Care
Battery Life Indicator
The battery condition icon is continuously displayed in the upper right-hand corner
of the display. As the battery is depleted, battery icon segments blank until only the
battery icon outline remains.
Each indicator segment represents approximately 25 % of the total battery capaci-
ty.
Battery Charging
The charger is capable of charging a completely depleted pack in less than four
hours in normal, room-temperature environments.
- Minimum and maximum ambient temperature to charge the instrument is 10 °C
[50 °F] and 35 °C [95 °F], respectively.
- For best results, charge the instrument at room temperature [23 °C].
Hourglass – Indicates user should wait.
Minimum – Indicates a minimum value or low alarm.
PEAK Symbol – Indicates a PEAK reading or high alarm.
STEL Symbol – Indicates a STEL alarm.
Warning!
Risk of explosion: Do not recharge instrument in hazardous area.
Attention!
Use of any charger, other than the charger supplied with the instrument,
may damage or improperly charge the batteries.
Allow very hot or cold instruments to stabilise for one hour at room tem-
perature before attempting to charge.
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