Dräger GS2 Bedienungsanleitung

5695046

Edition 07 – March 2019 (Edition 01 – December 2010)

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

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

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

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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