Measurement Operation - Wohler GS 220 Bedienungsanleitung

3. Measurement operation

3. Measurement operation
1. Power ON/OFF
Press ON/OFF key more than 0.2 second to turn on the meter. While the me-
ter is on and electrical power is enough, the BAT. OK LED will stay on.
To ensure the accuracy, users must perform the warm-up period in the clean
air.
The meter will be automatically switched off in 10 minutes. Or you could press
ON/OFF key again to turn off.
2. Warm-up Status
While the meter is powered on but the „ready"-LED is off, the sensor is under
warm-up process. The warm-up time is approximately 60 seconds. While
„ready"- LED is on, the meter is ready to measure.
Even you turn off the meter for a short time and turn on again, it is always
necessary to wait for 60 seconds warm-up time.
NOTE:
If the Wöhler GS 220 has not been used for a long time, we recomend to
repeat the warm up/calibration phase several times to achieve a higher sensi-
tivity and accuracy. To do so, switch on the meter 2 or 3 times and off again,
hen the „ready"-LED is on.
3. Mute function
The meter beeps every one second to assure the meter is in normal working
status. The beeps frequency will speed up while the detected gas concentra-
tion becomes higher.
While user use earphone, the meter will automatically mute but user could
hear the beeper through earphone.
While not using earphone, user could mute the beeper by switching the mute
to ON position.
4. Leakage Checking
To check the pipe leakage proceed as follows:
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 LED will light and beep frequency increased.
It takes at least 2 min. to wait for sensor recovering after removing the sensor
out of leak point.
e-mail: info@woehler.com www.woehler.com
Wöhler GS 220
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