Wixey WR500 ELECTRONIC DIGITAL READOUT - Manual (Page 7)

7
Measuring the thickness of any board.
Press the ABS/INC button until the INC
appears above the displayed reading
(21). The reading now will be 0.000 in
or 0.00mm.
Lift the tab on top of the steel scale and
place the board to be measured between
the bottom of the scale and the bottom of
the frame (22).
The reading displayed is the thickness of
the board (23). Remove the board.
Pushing the ABS/INC button again puts
the readout back in ABS mode and the
calibration is maintained.