MSA AUER Airtester HP User manual

Airtester HP
for compressed air according to EN 12021
Instruction for use
Part Number D3188001 (Edition Dec. 2003)

TABLE OF CONTENTS
_______________________________________________________________________________________________________________
Page
1.Use 3
2. Measuring Principle 3
3.Design 3
4.TechnicalData 3
5. Operating Instruction 4
5.1 Preparing for Measuring 4
5.2 Measuring on Compressed Gas Cylinders 4
5.3 Measuring on Compressors 4
5.4 Permissable Test Results 4
6. Maintenance 6
6.1 General 6
6.2Disorders 6
7.PartNumbers 6
Notice!
Like any piece of complex equipment, this product will do the job designed to do only if it is used and serviced in
accordance with the manufacturer`s instructions.
This manual must be carefully read by all individuals who have or will have the responsibility for using or
servicing the product. Before choosing and using this product, it is required to assess whether this product is
suitable for the application intended. Choice and use are beyond the control of MSA AUER GmbH. Therefore,
the liability of MSA AUER GmbH covers only the consistant quality of this product. The above does not alter
statements regarding the warranties and conditions of sale and deliveries of MSA AUER GmbH.
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MSA AUER
Airtester HP
for compressed air according to EN 12021
Instruction for use
1. Use
The compressed air monitoring set ”MSA AUER
Airtester HP” (HP = high pressure) is used to
determine the content of carbon monoxide, carbon
dioxide, oil and water vapour in respirable air from
compressors and compressed gas cylinders.
According to EN Standard 12021 air for respiratory
equipment must meet the following quality
requirements:
- CO content max. 15 ppm
- CO2content max. 500 ppm
- Free of odor and taste, i.e. practically free of
critical mineral oil content (from experience the oil
content is less than 0,5 mg/m3)
- Water contend in compressed air cylinders:
max. 50 mg/m3at a charging pressure of 200 bar
max. 35 mg/m3at a charging pressure of 300 bar
max. 25 mg/m3of the air from the compressor
The requirements concerning the maximum water
vapour content refer to the type of equipment used
(200 or 300 bar) and, therefore , apply also to each
pressure level of the compressed gas cylinders
below the maximum values given above.
All maximum values are based on air not under
pressure.
1. Measuring Principle
The pressure in the compressed gas cylinders, resp.
in the compressor charging panel is reduced by a
pressure reducer. The air to be sampled is
withdrawn continually via a regulatory valve. After
setting the prescribed flow volume (flow meter), the
air flows through a special detector tube for a specific
time. The length of stain in the detector tube is an
index of the concentration of the measured
substance. This can be read directly from the
detector tube scale.
3. Design
The case contents all parts required for measuring
(see fig. 1):
- The test device, consisting of pressure reducer,
pressure gauge, flow meter with adjusting valve
and water level, detector tube holder
- Adapter for connection to a compressor charging
panel (for charging connection 300 resp.
200 bar)
- Timer
- Tube breaker for breaking detector tube tips
- Detector tubes (package of 10) for measuring
CO, CO2, water vapour and check for oil (sum of
vapour and mist).
The standard case contents one package of each of
the four types detector tubes. In addition the case
has space for storing four additional spare packages.
Fig. 1 MSA AUER Airtester HP
4. Technical Data
Operation medium: air
Maximum pressure: 300 + 30 bar
Flow: Freely adjustable from 0,2 to
3 l/min.
The measuring tube of the
flowmeter is marked for the
setting of the required flow
volume (0,3; 1,0 or 2,0 l/min)
Weigth (with case): 5 kg
Dimensions: h= 120; w= 320; l= 420 mm
Measuring ranges of the Detector Tubes:
Carbon monoxide detector tubes
5 to 70 ppm carbon monoxide at a flow rate of
0.3 l/min in a measuring time of 5 minutes. (required
sampling volume 1.5 l).
See also specific instructions for use of the MSA
AUER detector tubes CO-HP.
Carbon dioxide detector tubes
100 to 2000 ppm carbon dioxide at a flow rate of
0.3 l/min in a measuring time of 5 minutes. (required
sampling volume 1.5 l).
See also specific instructions for use of the
MSA AUER detector tubes CO-HP.
Oil detector tubes
Check for oil contents (vapour + mist) at a flow rate of
2 l/min in a measuring time of 30 minutes. (required
sampling volume 60 l). The oil content is determined
whether the discoloration goes beyond the warning
mark or not.
See also specific instructions for use of the
MSA AUER detector tubes Oil-HP.
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Water vapour detector tubes
20 to 160 mg/m3water vapour at a flow rate of 1
l/min and a measuring time of 5 min. (required
sampling volume 5 l) or 5 to 70 mg/m3water vapour
at a flow rate of 1 l/min and a measuring time of
10 min. (required sampling volume 10 l).
See also specific instructions for use of the MSA
AUER detector tubes H2O-HP.
All values above are based on air not under pressure
and at room temperature resp, normal pressure.
Total amount of sampling air/sampling time are:
min. 68 l / max. 73 l resp. min. 45 min / max. 50 min
5. Operating Instruction
5.1 Preaparing for Measuring
- Clean valve of compressed gas cylinders, resp.
charging connections of compressor with brief
burst of air.
- Connect test device to compressed gas cylinder,
resp. to charging connection of compressor using
adapter.
Chose the adapter suitable for the prescript
maximum pressure of the compressor charging
panel (300 resp. 200 bar). Adjust test device so
that flow meter is vertical (use water level on flow
meter).
5.2 Measuring on Compressed Air Cylinders
- Slowly open cylinder valve
- Set adjusting valve of test device to flow rate of
2 l/min
- Flush device
When the test device is clean and dry flushing for
2 min. sufficient. If the condition of device is not
known, or if during a previous measurement higher
values were found than are permissible according to
EN 12021, flushing at 2 l/min. must be continued.
This must be done until 2 water vapour
measurements, made at an interval of approx. 15
min., give identical results within the permissible
measuring accuracy range. It than can be assumed
that the test device is sufficiently clean for making
measurements.
Liquid water (droplets) can only be removed from the
test device through long flushings with dry, if
necessary warm air.
- Set the air flow required for the measurement
(See para. 4 measuring ranges for detector
tubes).
- For the exact setting of the air flow, the upper
edge of the float must be at the same level as
the marking on the measuring tube (see fig. 2).
- Check, and if necessary adjust air flow setting
after 2 min.
- Observe arrow on detector tube. The arrow
points in the flow direction of the test air,
therefore, after inserting the tube, the arrow must
- Break off the detector tube tips at air exit side
(see fig. 3)
- Put detector tube into the tube holder, inserting
broken-off end tightly into holder side away from
test device.
- Break off other end of the detector tube (air entry
side) and immediately insert open tube tightly into
other end of detector tube holder (close to test
device). (see fig. 4).
- Immediately thereafter set timer to the time
designated for the type of detector tube and start
timer.
Note:
After inserting the detector tube the float in the
flowmeter will give a lower reading. Leave the float at
the lower setting during measuring (see fig. 5)
- Wait for timer bell to ring and then close the
adjusting valve of test device immediately.
- Remove detector tube from holder.
- Take reading from the printed scale on the tube
5.3 Measuring on compressors
- Switch on the compressor
- Wait until 200 resp. 300 bar are reached
- Switch off the compressor
- Slowly open valve on compressor
- Flush test device as scripted in para. 5.2
- Set required air flow as scripted in para. 5.2
- Check air flow after approx. 2 min. and adjust, if
necessary.
The water content that is measured in air from a
compressor only corresponds to the water content of
compressor gas cylinders simultaneously charged, or
cylinders charged immediately after measuring, if a
pressure retaining valve is built into the compressor at
the exit side of the drying cartridges. A prerequisite,
however, is that the cylinders to be charged are dry.
The pressure retaining valve assures that the
pressure inside the compressor drops only
insignificantly from the maximum pressure of 300
resp. 200 bar, when cylinders are being charged.
With compressor that have no pressure retaining
valve behind the filters, water from the drying
cartridge can be released to the sudden
decompression when the charging connection is
opened. The air has than a higher water content as
was measured on the compressor charging panel.
MSA AUER compressors normally have a pressure
retaining valve.
5.4 Permissable Test Results:
CO Contents max. 15 ppm
CO2Contents max. 500 ppm
Oil Contents max. 0,5 mg/m3
Water contents max. 50 mg/m3(rel. to 200 bar)
max. 35 mg/m3(rel. to 300 bar
max. 25 mg/m3(if sampled from
compressor)
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point away from the test device.
Fig. 2: Setting flow rate on flowmeter
Fig. 3: Breaking off detector tube tips
Fig. 4: Inserting detector tube into detector tube
holder
Fig. 5 :Flowmeter during Measuring
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6. Maintainance
6.1 General
In view of the significance of the accuracy of
measuring results, the test device must be treated
with care. Dirt must be avoided at all time, especially
at the highpressure connection.
Flushing and cleanless control of the test device
must be made as described in para. 5.2. After
measuring is completed, the test device shell be
stored in the case. The high pressure connection
should be closed with a protective cap.
Functual checks should be made at regular intervals
and if erroneous measurements are suspected.
6.2 Disorders
If the hand wheel of the test device cannot be
loosened while it is connected to a compressed gas
cylinder or compressor, check if connection is under
pressure. In this case close the cylinder valve or
compressor valve and release air from test device.
Leaks at the connection to the cylinder resp.
compressor could be due to a defect gasket. In this
case replace the gasket.
If the high pressure gauge or the detector tube
holder are defective, they must be replaced.
In case of other disorders the device should be
returned for repair to MSA AUER or any authorized
service station.
7. Part Numbers
MSA AUER Airtester HP D3188701
(Compressed air monitoring set)
Complete with case containing:
Test device consisting of pressure reducer, high
pressure gauge, flow meter with adjusting valve and
water level, detector tube holder.
Adapter for 200 and 300 bar one each for connecting
to compressor charging panel
Timer
device for breaking off detector tube tips
detector tubes for measuring carbon monoxide,
carbondioxide, water vapour, oil - one package each.
Accessories and Spare Parts
Detector tubes CO-HP* D5085847
Detector tubes CO2-HP* D5085848
Detector tubes H20-HP* D5085849
Detector tubes Oil-HP* 10040887
Detector tubes Oil- HP synth.* D5085850
Test device D4074937
Gaskets for connector to cylinder D4080948
Gaskets-lifter D4060989
Detector tube holder D4074058
High pressure gauge D4080073
Timer D5185020
Tube tip breaking device D5085012
Case D5185911
Case insert D5185931
* = Package of 10 pieces
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- 7 -

N
ort
h
ern
E
urope
Regional Head Office
Netherlands
MSA Nederland B.V.
Kernweg 20
NL-1627 LH Hoorn
P.O. Box 39
NL-1620 AA Hoorn
Phone +3 1 [229] 25 03 03
Telefax +31 [229] 21 13 40
E-Mail [e-mail]
Belgium
MSA Belgium N.V.
Ster re ns tr aa t 58 /1
B-2500 Lier
Phone +32 [3] 491 9150
Telefax +32 [3] 4919151
E-Mail [e-mail]
Great Britain
MSA [Britain] Limited
East Shawhead
Coatbridge ML5 4TD
Scotland
Phone +44 [12 36] 42 49 66
Telefax +44 [12 36] 440881
E-M ai l in fo @m sa br itai n.co .uk
Sweden
MSA NORDIC
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SE-214 44 Malmö
Phone +4 6 [40] 6 99 0770
Telefax +46 [40] 6 99 0777
E-Mail [e-mail]
C
entra
l
E
urope
Regional Head Office
Germany
MSA AUER GmbH
Thiemannstraß e 1
D-12059 Berlin
Phone +49 [30] 6886-555
Telefax +49 [30] 6886-1517
E-Mail [e-mail]
Austria
MSA AUER Au stria
Vertriebs GmbH
Absberger Straße 9
A-3462 Absdorf
Phone +43 [22 78] 31 11
Telefax +43 [22 78] 311 12
E-Mail [e-mail]
Switzerland
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August-Riniker-Str. 106
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Phone +41 [56] 44166 78
Telefax +41 [56] 4414378
E-Mail [e-mail]
European Head Office &
International Sales
[Africa, Asia, Australia,
L at in America, Mid dle Eas t]
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Telefax +49 [30] 6886-1517
E-Mail [e-mail]
S
out
h
ern
E
urope
Regional Head Office
Italy
MSA Italiana S.p.A.
Via Po 13/17
I- 20 089 Ro zzano [M I]
Phone +39 [02] 89 217-1
Telefax +39 [02] 82592 28
E-Mail [e-mail]
Spain
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Narcís Monturiol,7
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[Barcelona]
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E - Ma il in fo @m s a .e s
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E-Mail [e-mail]
E
astern
E
urope
Regional Head Office
Germany
MSA AUER GmbH
Thiemannstraße 1
D-12059 Berlin
Phone +49 [30] 6886-2599
Telefax +49 [30] 6886-1577
E-Mail [e-mail]
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Francia ut. 10
H-1143 Budapest
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E-Mail [e-mail]
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ul. Wschodnia 5A
PL-05-090 Raszyn
Phone +48 [22] 71150 00
Telefax +48 [22] 71150 19
E-M ai l bi ur o@ msa-a ue r .co m.p l
Russia
MSA AUER Moscow
2 Leninsky Prospect
Office 14
RUS - 117049 Moscow
Ph one +7 [095] 239 15 72
Telefax + 7 [095] 239 10 39
E-Mail [e-mail]
MSA in Europe
www.msa-auer.de
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Zentrale
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Kunden-Service-Telefon
0800 – MSA AUER
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Schwe iz
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C H- 5 24 5 H ab s bu r g
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Telefax +41 [56] 441 43 78
E-Mail [e-mail]
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