To check the calibration
of the MM1E, power on the meter
by sliding the Power/Scale switch to the
HIGH
position.
Remove the protective cap from the top of the meter, taking
care not to stab yourself with the two sharp pins beneath the
cap. Then turn the cap over and place its two holes over the
two pins. If the meter is calibrated, an LED at the 18%, 19%,
20%, 21%, 22% position on the
HIGH
scale will illuminate.
To measure the moisture level
of a material, power on the
meter into the
HIGH
scale and place the test pins on the
material. If it has a moisture level between 16% and 35%,
one of the LEDs will light. The number at its right indicates
the moisture level in %WME.
If the material’s moisture level is higher than 35%, the bottom
(35%) LED will light. This indicates that the material’s
moisture level is beyond the range of the MM1E. If the
material’s moisture level is lower than 35%, no LED will light.
To determine whether the material’s moisture level is lower
than 16% or between 16% and 35%, slide the Power/Scale
switch on the back of the meter to the
LOW
position. If one
LED lights, the number at its left indicates the moisture level in
%WME. If no LED lights, the material’s moisture level is less
than 7% and beyond the measurement range of the MM1E.
Some measurement tips:
1. To locate the source of a leak behind wood, plaster, drywall
or a ceiling, make measurements at different locations. The
leak is located when the meter displays the highest
reading.
2. Never use force to drive the pins into a hard surface.
3. When measuring the moisture level of soil, surface
readings will be lower than readings with the test pins
deep in the soil.
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