Dynapac PL2000F, Instruction Manual

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Machine description
156
4812313240.pdf
2017-12-1
Zero adjustment
Before describing operations with the various grade sensors, the term “zero
adjustment” has to be defined.
For every new application or after mounting or remounting a grade
sensor, the current value measured by the sensor has to be adjusted to zero.
In doing so, the current mounting level of the grade sensor above the reference is
saved in the system and a clear reference value is provided for all future set points at
the same time.
We call this procedure zero adjustment.
Procedure:
1) Move the milling drum’s bottom edge manually to the adjustment level; i.e. to the
level relevant to your day’s work (scratching).
2) Position the grade sensor(s) above the reference. Please consider the individual
specifications of the various sensors when doing so.
If you are working with laser receivers, move them with the help of the integrated
positioning aid so that the laser beam hits the middle of the receiver.
When the milling drum and the sensor(s) are set at the adjustment level, proceed as
follows in order to carry out the zero adjustment:
3) From the sensor selection menu, select the grade sensor to be
adjusted for the respective control loop.
4) Simultaneously press the UP key and the DOW N key of the respective control loop
and hold both keys down until the display first shows “Set” and then, after approx.
another two seconds, “0.0”.
The zero adjustment only is effective if the respective control loop is in
manual mode.