Dräger GS2 Bedienungsanleitung
5695046
Edition 07 – March 2019 (Edition 01 – December 2010)
en
Instruction Manual Dräger GS2
Dräger MSI GmbH
Rohrstraße 32
D – 58093 Hagen
Tel.: 0049-2331 / 9584 - 0
Fax: 0049-2331 / 9584 - 29
e-mail: [email protected]
Instruction Manual Dräger GS2
1
Remarks
Any use of the Dräger GS2 requires a full understanding and strict adherence to these in-
structions and to the national and international regulations and standards. The instrument
is only to be used for the purposes specified here.
This instruction manual is part of the instrument and kept save.
EU-wide regulations for the disposal of electric and electronic appliances which
have been defined in the EU Directive 2002/96/EC and in national laws are effect-
tive from August 2005 and apply to this device. Common household appliances
can be disposed of using special collecting and recycling facilities.
However, as this device has not been registered for household usage, it must not be dis-
posed of through these means. The device can be returned to your national Dräger Sales
Organization for disposal. Please do not hesitate to contact Dräger MSI GmbH if you have
any further questions on this issue.
Do not throw used batteries into fire or try to open them by force.
Dispose of the batteries in accordance with national regulations.
The Leakage Detector
The Dräger GS2 is an electronic leakage detector to detect different combustible gases.
Don’t use the Dräger GS2 as monitoring unit for your individual safety!
gas sensor flash-LEDs push-button battery case
Switch on
Switch on the Dräger GS2 by pressing the push-button for a short time (< 1s). After switch-
ing on the batteries capacity will be shown by flashing LEDs:
4 flashes: batteries full
1 flash: batteries empty
The warm up is shown by continuous flashing LEDs.
The readiness for operation is shown by constant flashing LEDs and a constant ticking
(1 x every 2 seconds).
Instruction Manual Dräger GS2
2
This gas leak detector uses a semiconductor sensor with a high sensitivity to methane and
other combustible gases. Basically, such sensors require a certain warm-up time after
switching on until they show a stable zero signal. The warm-up time is needed to process
substances that have diffused into the sensor during storage of the device. The Dräger
GS2 is designed to be ready for operation in the shortest possible time. The default warm-
up time is 30 seconds. Depending on storage and environmental conditions, the default
warm-up time may not be sufficient. In such a case the Dräger GS2 extends the warm-up
time to up to 300 seconds. If this extended warmup time is still not sufficient, the Dräger
GS2 comes up with an error signal and the sensor is defective.
Leakage Detection
Position the instrument such that the gas sensor is purged by ambient air. By rapproche-
ment to a leak and increasing gas concentration the flashing and ticking rate will increase.
By removing from a leak and decreasing gas concentration the signals will become slower.
If the signals become fast, slower them by a short press on the push-button. The signals
will slow down to 1 time every 2 seconds. With increasing gas concentration the signal rate
will rise. With decreasing gas concentration the zero point will be set automatic.
At a gas leak can be built gas streamers in the ambient air which will be high influ-
enced by air circulation.
Switch off
Switch off the Dräger GS2 by pressing the push-button for a longer time (> 3s). The Drä-
ger GS2 switches off automatically 10 minutes after the last keypress or the last detected
signal.
Changing the batteries
Unscrew the battery case. Insert the new micro-batteries (AAA) in the battery case. The
positive pole should show to the gas sensor. Screw up the battery case.
In doing this the Dräger GS2 will switch on automatic.
Function test of the leakage detector
Hold a gas lighter close to the gas sensor, let gas escape out of the lighter without a flame
burning. The signal rate should increase.
Trouble-shooting
Problem Cause Remedy
LEDs light after warm up for sensor defect send to service
10 seconds, after that the
instrument switches off
LEDs light for 2 seconds and calibration fault instrument runs with basic
than are off for 2 seconds value (reduced sensitivity)
before warm up send to service
Instrument cannot be switched on batteries empty change batteries
Instruction Manual Dräger GS2
3
Technical data
Measuring range 0 – 10,000 ppm (methane)
Sensitivity < 50 ppm (methane)
Warm up 30 seconds
Response time < 2 seconds. (to 10 % L.E.L.)
Signal audio and visual (1 x every 2 seconds w/o gas)
Sensor semiconductor
Detectable gases natural gas, methane, liquid gases, propane, butane,
gasoline, jet fuel, alcohol, various thinners, acetone,
hydrogen
Operating conditions
Humidity 10 – 90 % r.F. not condensating
Ambient temperature +5 – +45 °C
Storage temperature -20 – +50 °C
Power supply 2 Micro batteries (AAA)
Battery life approx. 6 h
Dimensions 157 mm x 12 mm x 16 mm
Weight ca. 57 g
Service and maintenance
A regular maintenance of the Dräger GS2 is not necessary. The correct function should be
tested from time to time by a function test.
China RoHS 2
Part Name
Hazardous Substances
Lead
(Pb)
Mercury
(Hg)
Cadmium
(Cd)
Hexavalent
Chromium
(Cr(VI))
Polybromin-
ated biphenyls
(PBB)
Polybromin-
ated diphenyl
ethers
(PBDE)
PCBA X O X O O O
Brass parts X O O O O O
This table is prepared in accordance with the Provisions of SJ/T 11364.
O: Indicates that said hazardous substance contained in all of the homogeneous materials for this part is
below the limit requirement of GB/T 26572.
X: Indicates that said hazardous substance contained in at least one of the homogeneous materials used
for this part is above the limit requirement of GB/T 26572.
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