General Tools MMD7NP Digital Moisture Meter - Humidity Sensor- Pinless and Non-Invasive

User Manual - Page 7

For MMD7NP.

PDF File Manual, 28 pages, Download pdf file

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The sample’s length and width should be at least as large as the dimensions of
the sensing area: 1.6 x 1.6 in. (40 x 40mm).
Measurements of wood are skewed by two variables: ambient humidity and the
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.
SPECIFICATIONS
Measurement Ranges 0 to 53% for softwood
0 to 35% for hardwood
Relative readings for wallboard and masonry
Measurement Accuracy ±4% for hardwood and softwood
Maximum Sensing Depth 3/4 in. (19mm)
(in wood)
Inductive Sensor Size 1.5 x 1.5 in. (38 x 38mm)
Out-of-Range Alarm Levels >17% for wood
>70% for drywall and masonry
LCD Size 2 in. (51mm) diagonal with three 0.5 in. (13mm)
high digits
Display Resolution 1%
Bar Graph Composition 3 each green, yellow and red LEDs
LED Bands 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%
Auto Power Off Trigger 2 minutes of inactivity
Operating Temperature 32° to 104°F (0° to 40°C) @ 5 to 95% R.H.
Storage Temperature 14° to 122°F (-10° to 50°C)
Dimensions 6.7 x 2.9 x 1.2 in. (170 x 75 x 30mm)
Weight 5.4 oz. (152g) without battery
Power Source (1) “9V” battery
7
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