8 CALIBRATIONS / TESTS
8.1 Length Calibration
− When calibrating the length, feed the tree a suitable distance,
measure the distance accurately and give measuring equipment this
information. Then measuring equipment calculates the correlation
between the number of pulses and the length.
− The length calibration proceeds as follows:
1. Carry out sawing. Then the running length is reset.
2. Feed the tree an arbitrary distance (long enough, for instance 5
m).
3. Measure the fed length accurately.
4. Go from the upper menu to the Test/calibration display and
select "Length calibration" by rotating the programming wheel
and press Enter.
5. Now rotate the programming wheel until the measured length
is displayed and press Enter.
NOTE!
The most accurate result is achieved by measuring a larger lot of
finished pieces and calculating their average length deviation.
This display is reached by pressing the
Enter key when the frame is here
Test selection keys behind which the test
displays are found (detailed information is
given in section "10. Diagnostics")
Length calibration button
Diameter calibration button
Length reading.
Length is calibrated by rotating the
programming wheel until the displayed
length reading is the same as the
measured length.
The length calibration factor is the pulse
length expressed in thousandth mm.
Value can be changed by rotating the
programming wheel.
10000 means that the length sensor
transmits 1 pulse with intervals of 1 cm.
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