23
6.2.2 Connecting the meter to the vent
• Connect the Wöhler meter with two measuring hoses to the
vent.
The overpressure socket (+) of the meter has to be connected
to the aperture with the higher pressure and the underpres-
sure socket (-) to the aperture with the lower pressure.
NOTE!
If the hoses are wrongly connected, the reading will be
negative. In this case inverse the hoses.
• During the measurement, the Wöhler meter can be fixed to
the protective grid with a magnet, so that the results can
easily be read from the display.
• When the aperture is under the ceiling, the meter can be
fixed with the hand strap.
Fig. 18: Example - Connection of the
measuring hoses
Fig. 19: Example - Fixing with a magnet
Fig. 20: Example - Fixing with the hand
strap
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