Wohler GS 300 User manual
Contents
16
Contents
1General Information ............................ 17
1.1 Operation Manual Information ..................... 17
1.2 Notes ........................................................... 17
1.3 Intended Use ............................................... 17
1.4 Information on disposal ............................... 18
1.5 Direction ...................................................... 18
2Technical Data ..................................... 19
3Important information ........................ 20
4Product ................................................ 21
4.1 Meter ........................................................... 21
4.2 Screen ......................................................... 21
5Operation ............................................. 22
5.1 Switching the meter on and off ................... 22
5.2 Selecting the measuring mode ................... 23
5.3 Alarm setting ............................................... 23
5.4 Leakage Checking....................................... 23
5.5 Flash light .................................................... 23
5.6 After the leakage testing ............................. 23
6Changing the batteries ....................... 24
7Charging the rechargeable batteries 24
8Service ......................... 26
8.2 Service ........................................................ 26
9Declaration of conformity .................. 26
10 Accessories ......................................... 27
General Information
17
EN
1 General Information
1.1 Operation Manual In-
formation
This operation manual allows you to work safely
with the Wöhler GS 300 Gas Sniffer. Please keep
this manual for your information.
The Wöhler GS 300 should be employed by pro-
fessionals for its intended use only.
Liability is void for any damages caused by not
following this manual.
1.2 Notes
WARNING!
Not following this warning can cause injury or
death.
ATTENTION!
Not following this note can cause permanent
damage to the device.
NOTE!
Useful information
1.3 Intended Use
The Wöhler GS 300 Gas Sniffer is a gas leak de-
tector for the tightness control and for the leakage
testing of gas tubes.
The meter shows the concentration of methane
and propane on a bar graph display from 0 ppm to
1200 ppm. It is suitable for the leakage detection
of gas lines carrying combustible gases. The me-
ter is not suitable for the measurement of the ex-
act gas concentration. The meter can be used
indoors only.
Do not use the meter for any other use than set
out in this manual.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
General Information
18
1.4 Information on disposal
Electronic equipment does not belong into domes-
tic waste, but must be disposed in accordance
with the applicable statutory provisions.
You may hand in any defective batteries taken out
of the unit to our company as well as to recycling
places of public disposal systems or to selling
points of new batteries or storage batteries.
Direction
Wöhler Technik GmbH
Wöhler-Platz 1
33181 Bad Wünnenberg
Tel.: +49 2953 73-100
Fax: +49 2953 73-96100
E-Mail: info@woehler.com
Technical Data
19
EN
2 Technical Data
Description
Data
Sensor
Semiconductor
Range
Methan 0 to 1,200 ppm
Propane
0 to 1,200 ppm
Alarm
intermittent beep and
vibration alarm
Response Time
10 seconds, approx.
Warm up time
60 seconds, approx.
Environmental con-
ditions:
Operating
Temperature
-5 to 45 °C
Storage
Temperature
-20 to 45 °C
Rel. Humidity
<85%
Auto-Off-Function
After 20 min.
LC display
31 x 51 mm
Flashlight
2 LEDs
Power supply
4 mignon cells AA
Current consumption
ca. 100 mA
Battery life
in general 14 hours
(continuous working),
depending on the type
Dimensions
190 x 55 x 40 mm
Flexible Probe
440 mm
Connections
headphone and power
supply unit
Important information
20
3 Important information
WARNING!
The Wöhler GS 300 may never be used in an environment where there is the risk of
explosion. If the environment is suspected to conglomerate potentially explosive gases,
in no case you must use the Wöhler GS 300. Batteries may not be taken from the
device and/or be changed in such an environment.
ATTENTION!
Always store the device in a closed case at clean air. The sensor will be damaged , if it
is exposed to extreme conditions for a long time, e.g. a high degree of relative humidity,
extreme temperatures or pollution.
ATTENTION!
Avoid exposure to silicone adhesives, e.g. in cleaning tools. Silicone vapors will cause
damage to the sensor.
ATTENTION!
High-density exposure to corrosive materials such as H2S, SOx, Cl2, HCl, etc. may
cause corrosion or breakage of the lead wires or heater material.
ATTENTION!
Protect the sensor against salt water vapor and water. Sensor drift may occur when the
sensor is contaminated by alkaline metals, especially salt water spray.
Light condensation under indoor usage should not be a problem for sensor. However, if
water condenses on the sensor‘s surface for a while, the sensor characteristics may still
drift.
ATTENTION!
If water freezes on the sensing surface, the sensor would crack and alter characteris-
tics.
ATTENTION!
Sensor performance may be also affected if exposed to a high density gas for a long
time, regardless of the powering condition.
NOTE!
This meter cannot work well in zero or low oxygen atmosphere. This meter requires to
operate under around 21% ambient oxygen environment in order to function properly.
Product
21
EN
4 Product
4.1 Meter
Fig. 8: Gas Leak Detector
1 Flexible Probe
2 On/Off-key
3 Mode-key: Selection Propane / Methane
4 Alarm-key: Selection beep / vibration
alarm / beep and vibration alarm / no
alarm
5 Light-sensor
6 Earphone jack
7 Mains connection
8 Flashlight
4.2 Screen
Fig. 9: Screen of the Gas Leak Detector
9 Battery Icon
ATTENTION!
Change batteries as soon as the battery icon ap-
pears
10 Vibration alarm
11 Acoustical alarm (beep)
12 without function
13 currently measured gas methane or propane
14 Calibration time, Countdown
15 Bar graph display
1
2
3
4
5
6
7
9
10
11
13
15
14
12
8
8
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
Operation
22
5 Operation
5.1 Switching the meter
on and off NOTE!
Switch on the meter in a non contaminated
environment, e.g. outside.
•
Press the ON/OFF key.
The warm up period will be 60 seconds. The
warm up period is automatically extended as fol-
lows, if the meter has not been used for a longer
period of time:
Last use of the meter
Warm up period
≤ 6 days
60 s
˃ 6 days
90 s
˃ 16 days
120 s
˃ 31 days
150 s
˃ 51 days
180 s
After placing
the batteries
180 s
•
After the warm up period, the measured value
of the selected gas will appear on screen
(methane or propane).
•
To switch off the meter, keep the On/Off key
depressed for 3 seconds.
The meter will switch off after 3 seconds.
NOTE!
If the Wöhler GS 300
has not been used for a long
time, we recomend to repeat the warm
up/calibration phase several times to achieve a
higher sensitivity and accuracy.
•To do this, switch on the meter 2 or 3 times and
off again after approx. 3 minutes each.
Operation
23
EN
5.2 Selecting the
measuring mode
Click mode-key to switch between the measuring
modes methane and propane.
M (methane) or P (Propane) will be displayed in
the upper right corner of the display.
5.3 Alarm setting
Fig.
10:
Icons vibration
alarm (1) and beep (2)
•Press the alarm key several times until the
required alarm setting is displayed.
A press on the alarm key will successively acti-
vate the vibration alarm and the beep together,
the beep only, the vibration alarm only or it will
turn off the alarm. The correspondent icons will
appear on screen.
The meter beeps every one second to assure the
meter is in normal working status (if the beep has
been activated). The beep frequency will speed
up while the detected gas concentration becomes
higher. While you use the earphone, the meter will
automatically mute but you can hear the beep
through the earphone.
5.4 Leakage Checking
•Approaching the sensor to the pipe, slide
slowly the sensor along the pipe; repeat the
procedure from the other side of the pipe.
When the sensor is near to a leak, the bar graph
display will show the gas concentration and the
beep frequency or the vibration frequency will
increase.
5.5 Flash light
In dark environment the display illumination and
the flash light will switch on automatically.
NOTE!
It is not possible to switch on or off the display
illumination and the flash light manually.
5.6 After the leakage
testing
•Ventilate the sensor after each use. Expose
the meter to fresh air for 2 minutes before
starting a new leakage test.
NOTE!
If connecting lines, tools and the meter are stored
in the same case, the gas may evaporate from the
tools. The meter will detect this gas even after
several days.
1
2
Changing the batteries
24
6 Changing the bat-
teries
Fig. 11: Battery compartment on the
backside of the meter
When battery voltage is low, a battery icon will
appear on screen.
ATTENTION!
Change batteries as soon as the battery icon ap-
pears
•
Replace the batteries by 4 new mignon cells
as follows:
•
Open the battery compartment on the back of
the unit. Replace the batteries. Observe the
polarity indicated in the battery compartment.
NOTE!
If the batteries have been changed, the warm-up
time after switching on is 3 minutes.
7
Charging the rechargea-
ble batteries
Fig.
12: Power supply pack 9 V
It is also possible to operate the meter with 4 re-
chargeable batteries AA.
•
For charging the rechargeable batteries con-
nect the meter to the power supply via the
power supply pack. Plug the jack of the power
supply unit into the mains connection at the
bottom of the instrument, see fig. 1, part 7.
When charging is in progress the battery icon will
blink.
When charging is complete the battery-symbol will
disappear from screen.
WARNING!
Risk of electrical shock!
Never touch the power supply pack with wet
hands!
Protect the power supply pack against water and
moisture!
Do not unplug the recharger by pulling the cable!
Do not use the power supply pack when the volt-
age requirements of the recharger and the supply
do not match!
Charging the rechargeable batteries
25
EN
The batteries can be recharged even while they
are located in the meter.
NOTE!
It is possible to operate the meter when charging
is in progress.
ATTENTION!
Ensure rechargeable batteries are equipped in the
meter before charging. Never try to charge dis-
posable batteries. Use 4 AA rechargeable batter-
ies only.
NOTE!
To ensure maximum capacity use batteries of
same age and condition only. Always replace a
full set of batteries when necessary.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
26
9 Declaration of conformity
The product
Produktname: Wöhler GS 300 Leakage Tester
complies with the key safety requirements set down in the guidelines of the Council for
the Harmonization of the Legal Requirements of the Member States in relation to the
electromagnetic compatibility (
2014/30/EU).
The following
standards were availed of to evaluate the product in respect of the elec-
tromagnetic compatibility:
EN 61326 : 1997 + A1 : 1998 + A2 : 2001 + A3 : 2003
EN 61000-4-2: 1995+A1:1998+A2 : 2001
EN 61000-4-3 : 2006
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