TESTO 0636 Mode D'emploi page 13

4. Measuring
Taking a a m m easurement:
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
A.screed
C.screed
Limestone
Concrete
I. brick
Sol. brick
Hwlumber
Swlumber
Gas concr
Chipboard
Service
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 .
Material
Anhydrite screed
Cement screed
Limestone
Concrete
High-insulating brick
Solid brick
Hardwood lumber
Softwood lumber
Gas concrete
Chipboard
Testing characteristic. Not for on-site measurements!
4. Measuring 13