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Wood and building moisture meter
NDI 20
4.4 Display lighting
4.5 Measure
To turn on the display lighting push the button shortly.
First choose the material to measure (wood or concre-
te). Then select the right materialgroup (density). The
material groups are in ascending order of density. For
further details refer to timber and concrete table.
Press the meter with appropriate support pressure (ca. 1
kg) against the measured material. The actual moisture
content is displayed instantly. The meter can slowly be
moved across the surface of the material to get an ave-
rage value. Areas of changing moisture can be found
quickly.
To improve the accuracy of the measurement, always
measure along the grain.
Important:
For highest accuracy the surface should be
even, clean and homogeneous. For very rough materi-
als, the measured value could be too low and a special
correction factor should be determined to obtain ac-
curate readings. Material with very uneven surface or
which is smaller than the sensor pad is not measured
accurately.
Содержание NDI 20
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