Specifications - General MM8 User Manual

density of the wood species. The best way to compensate for the effect of
these variables is to develop your own moisture level curves, based on your
experience working with different species of wood on a day-to-day basis.
Although the MM8 auto-calibrates each time it is powered on, the meter can be
manually calibrated. Perform a manual calibration whenever the meter cannot
produce a reading, or if multiple measurements of the same sample produce
very different readings.
To manually calibrate the MM8:
1. Power the meter on and hold it in one hand with the top in the air. Make sure
your fingers are not touching or near the inductive sensing area.
2. Press and hold the HOLD button until the display reads 101. Then release the
button; this will change the reading to 102. Wait a few seconds. When the
reading changes to 000, calibration is complete.

SPECIFICATIONS

Measurement Ranges
Measurement Accuracy
Maximum Sensing Depth
(in wood)
Inductive Sensor Size
Out-of-Range Alarm Levels >17% for wood
LCD Size
Display Resolution
Bar Graph Composition
LED Bands
Auto Power Off Trigger
Operating Temperature
Storage Temperature
0 to 53% for softwood
0 to 35% for hardwood
Relative readings for wallboard and masonry
±4% for hardwood and softwood
3/4 in. (19mm)
1.6 x 1.6 in. (40 x 40mm)
>70% for drywall and masonry
2 in. (51mm) diagonal with three 0.5 in. (13mm) high digits
1%
3 each green, yellow and red LEDs
For drywall and masonry: green = 0 to 30%,
yellow = 31 to 70%, red = >70%
For wood: green = 5 to 14%,
yellow = 15 to 17%, red = >17%
2 minutes of inactivity
32° to 104°F (0° to 40°C) @ 5 to 95% R.H.
14° to 122°F (-10° to 50°C)
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