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Protimeter TimberMaster
3 Using the Protimeter TimberMaster without the
Temperature probe
The TimberMaster is calibrated for wood at 20°C (68°F) .
In general, the effect of temperature on the moisture mea-
surement calibration can be approximately compensated
as follows:
for every 5°C above 20°C, subtract 0.5%mc from
the value displayed. For every 5°C below 20°C, add
0.5%mc from the value displayed.
Examples:
Wood temp: 20°C, Moisture value: 15.5%. Temp correction: 0 moisture content: 15.5%
Wood temp: 25°C, Moisture value: 15.5%. Temp correction: -0.5 moisture content: 15%
Wood temp: 20°C, Moisture value: 15.5%. Temp correction: -1 moisture content: 14%
Wood temp: 20°C, Moisture value: 15.5%. Temp correction: +0.5 moisture content: 16%
Wood temp: 20°C, Moisture value: 15.5%. Temp correction: +1 moisture content: 16.5%
3.1 Reading with Integral Electrode pins
Remove the cap to expose the needle electrodes and
switch the instrument ON by pressing . Select the
appropriate wood calibration scale (A, B, C, D, E, F, G,
H or J) by referring to the enclosed Protimeter wood
calibration tables and pressing . Push the pins in
to the surface of the wood and observe the reading.
3.2 Reading withMoisture probe or Hammer
electrode
Connect the moisture probe or (optional) Hammer
electrode to the 3.5mm socket at the right hand side of
the TimberMaster and Switch ON by pressing . Select
the appropriate wood calibration scale (A, B, C, D, E, F,
G, H or J) by referring to the enclosed Protimeter wood
calibration tables and pressing . Drive the moisture
probe pins or hammer electrode needles in to the wood
and observe the reading.
4 Using the Protimeter TimberMaster with the
Temperature probe
If the Timber being measured is signicantly above
or below 20°C (68°F) the the TimberMaster should be
used in conjunction with the Temperature Probe. When
this probe is connected the TimberMaster automatically
corrects the measured moisture value with respect to
temperature.