To obtain accurate measurements:
Turn the meter on and place it on the test sample (for
wood in the direction of the grain). Press down lightly,
holding the outer sides of the meter without touching
the test sample with your hand. It is important to put
light pressure on the meter towards the test sample.
For accurate measurements:
- The test sample should be big enough to cover both
measuring pads.
- The test sample should be at least as thick as the measuring depth. See below.
- If the surface is not smooth and fl at, several measurements should be taken.
Select the highest value.
Note, all materials within the measuring fi eld contribute to the value indicated. If the test
sample is composed of diff erent materials, the value indicated may not be a true moisture
percentage, but may only be a reference number. Page 9: Find Settings for Composite
and Engineered Boards.
To make sure the material underneath the test sample is not infl uencing the measure-
ments, arrange an air space underneath the test sample. For example: Elevate one end
of the test board to create an air space underneath the board.
Measuring Depth Selectable 1/4” and 3/4”
Selectable dual-depth 1/4” and 3/4” is a unique feature only available in Lignomats
dual-depth meters: Ligno-Scanners SD and SDM, Ligno-DuoTec BW and Ligno-
VersaTec. All dual-depth meters from Lignomat have 2 independent sets of calibrations,
one for 1/4” deep and one for 3/4” deep.
Measuring depth is crucial for all pinless meters.
Most pinless meters are calibrated for a fi xed ma-
terial thickness of 3/4”. That means, accurate mea-
surements can only be taken if the material is at
least 3/4” thick and no more than 1.5” thick. If test
samples are thicker than 1.5”, core measurements are only possible with a pin electrode.
If test samples are thinner than the measuring depth, readings may be inaccurate:
- If not enough test material is underneath the measuring pads, values will be too low.
- If material underneath the test sample is included in the measuring fi eld, values
could be too high.
New ways to use the dual-depth capability of the dual-depth Ligno-Scanner SD ....
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