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WIKA operating instructions gas presence detector,
model GPD-1000
14314459.03 07/2020 EN/DE/FR/ES
EN
5.3 Setting sensitivity level
The model GPD-1000 has a standard and a high sensitivity level, which can be changed
during operation with the help of the control button (double press). The standard
sensitivity is suitable for the detection of most leaks, with a sensitivity of 14 g/year. In the
event of there being a small leak, it is possible to set the sensitivity to 3 g/year.
Setting standard sensitivity
1.
Ensure that the instrument is ready for operation (→ see chapter 5.2 “Switching on
2. Press the control button (5) once in order to set the sensitivity of the instrument to the
current environment.
⇒ The LED blinks orange briefly.
⇒ Standard sensitivity is confirmed.
⇒ Leakages below the set sensitivity will now be ignored.
Setting high sensitivity
1. Ensure that standard sensitivity is already set.
2. Double press the control button (5) in order to set the sensitivity for the detection of
smaller leakages.
⇒ The LED blinks orange briefly and then green again.
⇒ In parallel to this, a high tone will sound.
⇒ High sensitivity is confirmed.
⇒ Small quantities of escaping SF₆ gases can now be detected.
5.4 Detecting leaks
For the correct detection of SF₆ and alternative gases, the sensor must be held in the
vicinity of the points to be tested (distance of approx. 1 to 2 cm). The sensor should
be guided to the suspected location at a speed of approximately 5 cm per second.
The successful detection of a leak is given audibly and visibly at the same time.
Depending on the quantity of the detected gases, the frequency and the pitch of the
given tone, and also the blinking of the indicator, increase.
5.5 Batteries
Inserting/replacing batteries
1.
Switch the instrument off (→ see chapter 5.2 “Switching on and off”).
2. Carefully remove the battery protection cover from the back of the instrument.
→ During this action, the replacement sensor stored within can fall out of the battery
compartment.
3. Insert two AA batteries, taking care of the polarity.
4. Reclose the battery protection cover.
5. Commissioning, operation
