General Tools MM80G User Manual

1

a

a scale for wood

b scale for

c value out of

d low battery

bc d

moisture

mineral building
materials

range indicator

charge
indicator

+

+

+

Lithium battery CR2032

ON/OFF

3

4

Self-test function

1.

2

This unit switches
into an energy­saving mode after 3
minutes. To wake up
the unit again, acti­vate the ON button
2 times. To switch o
the unit, activate the
ON button 1 time.

2.

+

1.

2.

Function/application: This material moisture instrument detects
and evaluates the material moisture content of wood and building
materials by way of electric resistance measurement. The displayed
value is material moisture in % with respect to dry mass. Example :
100% material moisture for 1 lb of wet wood = .5 lb water.

Measurement procedure notice:

Be sure neither supply lines (electric lines, water pipes, etc) nor a
metal subsurface is present at the location to be measured. Insert
the electrodes as far into the material as possible but never use
excessive or sudden impact force as this could damage the unit.
Always pull the unit out of the material with left/right twisting
motion. Perform several comparative measurements at die-
rent locations to minimise measurement error.

The sharply pointed electrodes present an injury hazard . Always
put the safety cap on the unit when it is not in use or being
transported.

Wood

5

Mineral building materials

The location to be measured
should be untreated, free of
knots, dirt and resin.
Measurements should not
be made on the end faces of
wood because these areas
dry particularly quickly such
that they produce incorrect
measurement results.
Read measurement results
from the left-hand wood

moisture scale.

Refer to the conversion table
below in order to obtain more
precise measurements for
dierent materials.

Be aware that walls (or sur­faces) made of several dierent
materials, or even variations in
the material‘s consistency, can
cause measurement results to
be falsied. Perform multiple

comparative measurements.

Read measurement results
from the right-hand building

materials scale.

Refer to the conversion table
below in order to obtain more
precise measurements for
dierent materials.