WAGNER MMI 1100 Instruction Manual - Taking Measurements
8
Mode 7 = Erase Data
When the Erase Data mode is selected, it will first indicate how many memory locations are currently
used. The Erase Data mode can then be used to erase all of the stored MC readings. The display will first
show the Erase screen as shown in Figure 7a. The Erase screen shows how many stored readings are
about to be erased. The Erase screen will remain on the display for 3 seconds during which time if the
user simultaneously presses down both the Species and the Mode buttons for a period of 1 second, the
stored readings will be erased. If Erasure is successful, the display will briefly show the Erase OK screen
(shown in Figure 7b),
and then revert to Mode 1 (Measurement Mode). If the user does not complete the Erase sequence just
described, the display will revert to the Mode 1 select screen.
Taking Measurements
In order to take correct moisture content measurements, ensure that the meter’s specific gravity (species)
setting is the correct one for your species of wood as listed in the Species Settings Table.
3
Be sure to press down firmly on the center of the meter with approximately 3 pounds of force to ensure
good sensor plate contact with the wood surface. This is especially important on rough sawn lumber. Do
not take readings where there is a noticeable defect or knot in the lumber.
If there is visible surface moisture or water, wipe off any excess, and let the surface of the wood dry-out
for a couple of minutes, then take the reading. If possible, turn the board over and measure the other side.
If the thickness of the piece is greater than 1.5 inches, it is a good idea to take measurements on both
sides.
If the lumber thickness is less than the scan depth of the meter, an air gap of at least one inch needs to be
maintained underneath the wood to prevent erroneous high readings. Ensure that there is nothing
(including your hand) under the material you are measuring, especially any metal. The actual moisture
sensing area is a 1
1
/
2
inch by 2
1
/
2
inch rectangle on the meter’s backside (opposite side of the display
and keypad). In order to take a valid measurement, this sensing area must be completely covered with the
wood or other material you are measuring. If the sensing area is not completely covered, your moisture
reading will be inaccurate.
Footnotes:
3
Refer to the Species Settings Table in the supplemental manual provided.
Figure 7a
Figure 7b