65
CALIBRATION
CAUTION:
The scale is factory calibrated. Do not attempt to perform calibration
without a 2 kg calibration weight at hand!
Usually, there is no reason for calibration.
However, if the scale must be calibrated because of incorrect readings, you will need
a 2kg calibration weight. The calibration weight is not provided with the appliance.
Please note that the accuracy of all results displayed by the scale, depend on the
accuracy of the calibration. Failure in calibration can reduce the performance of
your scale considerably. Thus special care must be taken when calibrating the scale.
By holding the MODE button pressed, the scale will enter calibration mode and with
the scale platform empty, “2000.0 g” will be shown on the LCD display. If you do
not have the correct 2kg calibration weight at hand, switch off the scale by pressing
the SCALE button to keep the existing calibration data.
IMPORTANT: For calibration, you should avoid operating the appliance by any
unstable power supply (e.g. batteries, electricity generator, or 12 V motor vehicle), as
this could reduce the accuracy of the calibration. Connect the appliance to a 230V
AC mains power supply for calibration.
Follow the instructions below to perform a correct calibration.
Hold the 2kg calibration weight at hand. Connect the AC power cord to the AC
power socket of the appliance. Ensure that the scale platform is absolutely clean and
dry. Then install the scale platform at the scale installation port.
Place the appliance on a stable, level surface. Turn the stabilisation levers at the sides
of the appliance to the IDLE/SCALE position. Check, whether the scale platform is
level, using a spirit level. Connect the appliance to a stable 230 V AC mains power
supply (see: ‘Using an External Power Supply’).
With the scale switched on, wait for the LCD display to show zero. Thereafter, wait
for at least another 30 seconds, allowing equilibration of the scale’s electronic. Ensu-
re that the scale platform is completely empty. Then, hold the MODE button pressed
for some seconds. The LCD display shows “2000.0 g”.
Press the MODE button again. “CAL” will be displayed first. Then, “2000.0 g” will
be shown again.
Carefully place the 2kg calibration weight on the centre of the scale platform and
wait for a few seconds for the scale to execute the calibration process. With a suc-
cessful calibration “PASS” will be shown on the LCD display.
Remove the calibration weight. The scale will keep the new calibration data in
memory.
