13
4.
Measuring
²
Taking aa m
measurement:
The instrument is switched on and is in measurement
view.
The correct material was selected in the instrument,
see instruction manual for the measuring instrument.
Selectable materials:
Display
Material
A.screed
Anhydrite screed
C.screed
Cement screed
Limestone
Limestone
Concrete
Concrete
I. brick
High-insulating brick
Sol. brick
Solid brick
Hwlumber
Hardwood lumber
Swlumber
Softwood lumber
Gas concr
Gas concrete
Chipboard
Chipboard
Service
Testing characteristic. Not for on-site measurements!
i
Hold probe horizontal to contact surface. Slowly
increase contact pressure to 1 to 3 kg (2.2 to 4.4lb)
until a stable value is shown.
In order to be able to evaluate a moisture course, several
measurements at different positions or at different times
are necessary.
In drying processes, the displayed measurement values
can in individual cases also be negative. This occurs as
a result of the material composition and the different
moisture gradients. When negative measurement values
are displayed, the drying process is nearly finished, i.e.,
the more negative the values, the drier the material.
For better assessment of the contact pressure, the
probe can initially be pressed against a scale.
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4. Measuring
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