GANN 30001430, Operating Instructions Manual

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33
For the measurement a blind hole of 16 mm diameter should be drilled down to the required
measuring depth. It is important to use a sharp drill, with a high number of impacts and low speed.
If the hole should heat up strongly it is necessary to wait for temperature equalization (30 - 60
minutes) before taking the measurement. The hole should be cleared of dust (by blowing). Then
the hole adapter should be introduced as far as the end of the hole, pressed in and at the same
time turned to the right. The adapter should be tightened to such an extent that the entire screw
thread sits firmly in the brickwork, concrete, etc. Then the closure rod for sealing or the electrode
RF-T 31 should be inserted.
The moisture balance in the hole is achieved when temperature equalization exists (the same
temperature in the hole, adapter and sensor tube) after approximately 30 minutes. Then the
measurement value can be read off and assessed by means of the following graph.
Use of the active electrode RF-T 36
For the measurement a blind hole of 12 - 14 mm diameter and minimum 25 mm and maximum 50
mm deep must be drilled. The depth of drilling depends on the required measurement depth or
thickness of the screed. Blow the hole clear of dust and wait for temperature equalization. Push the
piece of foam enclosed on to the electrode tube of the probe and adjust the distance and to seal it,
then introduce it into the hole.
The moisture balance in the hole is achieved when temperature equalization exists (the same
temperature in the hole, adapter and sensor tube) after approximately 30 minutes. Then the
measurement value can be read off and assessed by means of the following graph.