6
To ensure that the plate meter accurately measures the compressed height of
pasture, the plate meter must be calibrated. This requires setting a base level of
zero so measurements can be benchmarked against this. If the plate meter does
not return to zero after each reading, it will not record the measurement - hence
the plate meter will not beep.
If, for any reason, the plate meter is out of calibration, it will need to be
recalibrated.
To calibrate the plate meter:
1
Hold the plate meter at the bottom of travel and ensure that the plate meter is
switched off.
2
Locate the zero adjustment screw (beside the On/Off switch).
3
Remove the protective rubber bung by levering it out gently using a flat-
bladed screwdriver.
4
Hold down the “Count” button while switching the unit on. The display will
change to “CAL” briefly and display a colon (:) followed by a number. The
colon (:) signifies that it is in fine calibration mode.
As an example, you might see “:5” when you switch on.
5
Using the flat bladed screw
driver, turn the yellow plastic or
steel shaft within the cog,
anticlockwise, until the display
reads “0”.
The cog and steel
shaft must remain
stationary.
Do not turn the shaft
beyond this point or
you may damage the
plate meter and void
the warranty.
