Berner 213981, Operating Instructions Manual

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Operation
After switching on and pressing “MEAS” the instrument does a self-
calibration. There fore hold the instrument during the first measurement
into the air away from yourself and other surfaces. The display indicates
“CAL”. After appr. 2 seconds it will display 000 (Keep “Meas” pressed until
CAL disappears. Now you can start with the measurements. Hold the instru-
ment as near to the back as possible. Press the “MEAS” button and use the
ball to scan the surface under investigation. The ball must be in firm contact
with the material. To obtain the best results, the instrument should be
held at an angle of 90° to the surface to be measured.
Building Materials Moisture range
(unit) Moisture status
Gypsum
< 30 DRY
30 - 60 MEDIUM
> 60 WET
Cement
< 25 DRY
25 - 50 MEDIUM
> 50 WET
Wood < 50 DRY
50 - 80 MEDIUM
> 80 WET