Jema Autolifte DWC-9-E, Руководство по эксплуатации, Страница: 32 / 38

6.11 Calibration
Attention! Each sold machine is already calibrated! Calibration is advised only in a
situation where there exists a probability of machine recalibration (if e.g. displayed
imbalance values do not reflect actual values).
Calibration process is about providing a pattern and saving in the machine’s memory its
reaction to it.
At present all manufactured machines give the operator an option to choose between
calibrating with his own wheel or with an added device.
6.11.1 Calibration using the device
The calibrating device, provided with the wheel balancer, should be placed on the
holder. After closing the hood ("AUTOSTART" turned off) press and hold key until
a signal is heard and the following pictogram appears on the display:
6.11.2 Calibration using a wheel
Mount a prepared earlier wheel (steel recommended, initially balanced) on the holder. Input
data
and
on the RIGHT! edge (external) hammer a model weight 80g. After closing the hood
(AUTOSTART turned off) press for a moment, let go, then press and hold
until the machine generates a signal and the following appears on the display:
Calibration procedure in both cases results in displaying the following (machine is ready for work):
ATTENTION: It is impossible to conduct a correct calibration if the wheel is
not properly balanced. Even though the procedure may end successfully, the
latter results will be afflicted by errors resulting from incorrectly executed
calibration.
6.11.3 Balancing a wheel before calibrating with it
To balance a wheel before using it for calibration go to the balancing program, set the
threshold to
M
0"and start a measurement. If there is no imbalance and two zeroes appear,
the wheel is balanced and may be used for calibrating the machine. Otherwise it should be
balanced until a control measurement shows zero-valued imbalance results. Only then
calibration can be performed as described in chapter 6.11.2.
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