LaserLiner DampMaster Manual page 14

Select building material (01, 02, 03, 04)
6
Just which building materials are grouped under 01 to 04 can be found in the table in Section 11.
Measuring material moisture
7
Be sure neither supply lines (electric lines, water pipes, etc) nor a metal subsurface is present at the location to
be measured. Insert the electrodes as far into the material as possible but never use excessive or sudden impact
force as this could damage the device. Always pull the device out of the material with left/right twisting motion.
Perform several comparative measurements at different locations to minimise measurement error. The
sharply pointed electrodes present an injury hazard. Always put the safety cap on the device when it is not in
use or being transported.
Wood
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The location to be measured should be untreated,
free of knots, dirt and resin. Measurements should
not be made on the end faces of wood because
these areas dry particularly quickly such that they
produce incorrect measurement results. Perform
multiple comparative measurements. Wait until
the % symbol stops blinking and remains constantly
lighted. Only then are measurement values stable.
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Be aware that walls (or surfaces) with differing material
structures, or even variations in material composition,
can cause measurement results to be falsi ed. Perform
multiple comparative measurements. Wait until
the % symbol stops blinking and remains constantly
lighted. Only then are measurement values stable.
Mineral building materials
8