General Tools and Instruments MMD900 - Manual (Page 5)

• The 40-LED analog bar graph groups LEDs of three different colors (green,
yellow and red) into low, medium and high moisture bands. Each readout
(%WME or REL) can be accompanied by a beeper that can be programmed to
sound in different ways in response to different moisture levels or operations.
The correlations make it easy to use sight and/or sound to pinpoint areas of
peak or relative wetness. The beeper can be disabled without affecting
measurements.
• An auto power off function that can be triggered by three, five or 10 minutes
of inactivity.
• The protective cover for the meter’s test pins can be used to manually check
the meter’s calibration. Alternatively, the meter can automatically check its
calibration each time it is powered on.
• A display icon indicates when the meter’s 9V battery is low on charge.
KEY FEATURES
• Two measurement modes: Pin (conductivity-based) and pinless
(based on the fringing field effect)
• Two sets of test pins: on top of the meter and at the end of 46 in. remote
cable
• Pin measurement accuracy of ±3%
• Pinless mode measurement depth of 2 in. below surface
• Displays %WME and relative readings simultaneously on two displays:
0 to 99.9 count jumbo LCD with 0.9 in. (23mm) digits, and 40-dot tri-color
LED bar graph
• Manual or automatic calibration checking
• Data hold (display lock or “freeze”) function
• User-programmable beeper function, backlight function and auto power off
time
• Low battery warning
• Includes two pairs of replacement test pins
• Spare pins storage compartment
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