GANN HYDROMETTE HB 30, Operating Instructions Manual

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The contact paste is supplied in quantities of approx. 450 g in a plastic box sealed with a
screw cap. It is used to produce a good contact between the electrode point and the building
material to be measured or to serve as an extension to the electrode point. The moisture dis-
placed by the drilling process is reconducted to the material to be measured by the water con-
tained in the highly conductive contact paste.
The surface of the material to be measured must not be smeared with the contact paste as
the latter has a high conductivity. When using the M 6 electrodes, it is advisable for an ap-
propriate amount of the paste to be rolled into a thin strand and pressed into the hole with the
reverse end of the drill.
It is possible to keep the contact paste mouldable by adding normal tap water. The quantity
contained in a box is generally sufficient for approx. 50 measurements.
Flat Electrode M 6-Bi 200/300
These two electrodes are exclusively designed for measurement of insulating material through the
edge joint of the cement flooring. Spaced about 5 to 10 cm, they have to be pushed forward
through the edge joint along the cement flooring down to the insulating layer. Particular care should
be taken to avoid that the shrinking hose of the pins is not damaged because otherwise a moist
cement flooring can cause measuring errors. The cap nuts should be tightened by means of a
spanner or pliers.
The two flat electrodes can only be used with the M 6 electrode handle.