General Tools and Instruments MMD7003 - Manual (Page 4)

OPERATION
CAUTION: The electrode measurement pins are extremely sharp. Use
care when handling this instrument. Cover the pins with the
protective cap when the instrument is not in use.
MEASURING PROCEDURE:
The electrode pins must be inserted before the meter can be used.
To insert or replace the pins refer to the instructions below:
• Remove the protective cap at the top of the unit
• To remove the pins, loosen the locknut at the base of the
electrode pins
• Install the new pins and tighten the locknuts
• Replace the protective cap
OPERATION:
• Remove the protective cap away from the test pins
• Press the POWER button to turn the unit on
• Press the “Material” button to select the desired testing material
Material 1: 0 to 100% relative moisture value for concrete and other
non-wood material. A ‘1’ will display on the bottom right.
Material 2: 6% to 40% moisture range for wood. A ‘2’ will display on
the bottom right.
It is recommended that the test pins are to be inserted to a minimum
depth of 1/8" (.125") into the material under test. If a depth of 1/8"
(.125") can not be obtained, then insert the test pins to their
maximum achievable depth.
Display will show the moisture contents in “% moisture content”
directly.
Consideration: If the sample test has high moisture content, it may
take a few minutes to obtain a stable reading.
Replace the protective cap when finished.