6
Moisture Encounter Plus
User Guide
6. For drywall, felt roofing, plaster or brick comparative
(Relative) readings are taken from the lower line on the
meter dial, which is marked from 0 to 100.
7. The instrument will automatically power-off after two
minutes if no button is pressed or if no change in meter
reading is detected. If a button is pressed or the meter
reading changes, the power-off will be extended for a further
two minutes.
8. To freeze readings press the HOLD button once. While on
Hold, the LED for the selected scale will flash slowly. This
facility is extremely useful if readings are being taken in
areas where it is difficult to see the instrument dial. To
remove freeze, press the HOLD button again.
Working with your Moisture Encounter Plus
Scale 1
Testing wood and wood products
a) When testing wood, power-on, select Scale 1 and press the
rubber electrodes directly to the surface. Read the moisture
percentage from the top line of the analog dial where
calibration is marked from 5% to 30%. If switched on, the
audio signal will sound when readings are above 18%.
b) If possible, always take readings with the length of the
instrument parallel to the direction of the wood grain.
c) Calibration tests were carried out by Forbairt, the Irish
Institute for Industrial Research and Standards, and are based
on Douglas fir, which has a published specific gravity (SG)
of 0.50. For wood having an SG other than 0.50 see “Notes
on Specific Gravity” and “How to use the Wood SG
Adjustment Tables” on page 9.
d) Acceptable levels of moisture content depend on climatic
conditions and we advise you check the levels acceptable in
your area. The table on page 8 shows the approximate rela-
tionship between the ambient relative humidity and equilib-
rium moisture content in woods.
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