LaserLiner MultiWet-Master Compact Plus Mode D'emploi page 31

– Make sure that the sensor pads make good contact with the material with
no air inclusions.
– The contact pressure compensates for unevenness of the surface and small
dust particles.
– Measured surface should be free of dust and dirt
– Always take spot measurements while exerting a contact pressure of 2.5 kg.
– For quick checks, while exerting light pressure, you can slide the device over
the surface. (Look out for nails and pointed objects! Danger of injury and
damage to sensor pads!) Measure again at the highest deflection point while
applying 2.5 kg contact pressure.
– Keep at least a 5 cm distance from metal objects
– Metal pipes, electric lines and reinforcing steel can falsify measurement results
– Always measure at several different spots
Wood: The measured depth in wood is 30 mm maximum but does vary
somewhat with differing wood densities. Measurements made on thin wood
boards should, if possible, be made on a stack of these boards as otherwise
the measurement will be too low. Measurements made on installed wooden
structures are influenced by the structural conditions and their chemical
treatments (e.g. paints) with various materials. Thus such measurements
should only be viewed relatively.
Maximum accuracy is achieved between 6% and 30% wood moisture. In very
dry wood (< 6 %) irregular moisture distribution can be detected, in very wet
wood (> 30 %) saturation of the wood fibres begins.
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General instruction for use
The operating principle of the device can only determine the material moisture
measurement in % and show the moisture content on the LED display when
the material matches the specified internal material characteristics.
Material relative moisture reference values, in %, for use with wood:
– Outdoor usage:
– Use in unheated rooms:
– In heated rooms (12 °C ... 21 °C):
– In heated rooms (> 21 °C):
This moisture measuring device is a sensitive tool. This means that the
measurement results may be subject to slight deviations when someone
!
touches the device with their hand or when contact is broken between
the device and the material being measured. However, contact with the
user's hand forms the basis for calibrating the measuring device, so we
recommend holding onto the device whilst taking your measurements.
MultiWet-Master Compact Plus
12% ... 19%
12% ... 16%
9% ... 13%
6% ... 10%
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