1
GE
GE Protimeter
Sensing
Timbermaster
®
Introduction
The
Protimeter Timbermaster
is a
conductivity moisture meter designed
for use in wood. Moisture measure-
ments can be taken using the integral
pin electrodes, or using the meter in
combination with moisture probes or
hammer electrodes. When used with
the temperature probe, the moisture
measurements are automatically cor-
rected with respect to temperature.
This feature is particularly relevant
for users testing wood that is signifi-
cantly above or below
20°C
(
70°F
).
The Timbermaster is switched
ON
by
pressing
momentarily and
switched
OFF
by pressing and holding
for 2 seconds or more. The instru-
ment will switch
OFF
automatically
after 5 minutes unless the default set-
ting is changed (see section 3).
1 Using the Protimeter
Timbermaster without the
Temperature Probe
The Timbermaster is calibrated for
wood at
20°C
(
70°F
). In general, tim-
ber that is hotter than
20°C
will give
higher readings and timber colder
than
20°C
will give lower readings.
An approximate manual correction of
0.5% moisture content per
5°C
may
be subtracted from timber that is
above
20°C
. For timber that is below
20°C
, a manual correction of 0.5%
moisture content per
5°C
may be
added to the measured value.
