LW Measurements MRB 2500 - Manual (Page 18)

18
NOTE: X is the calibration weight which can be set according to your
requirements. The weight needed when re-calibrating your Tree scale
needs to be at least half (1/2) of the capacity of the scale with two
thirds (2/3) being ideal as this will give you the most accurate reading.
(Ex: For a 10,000g scale you would need at least 5,000g)

Press the Zero key to confirm the calibration weight. The display will
show CAL and then the AD value. Once the stable indicator
“(.)” is
displayed, press the UNIT key. The display will flash the calibration
weight.

Place the calibration weight on the platter. After the stable indicator
“(.)” is displayed, press the UNIT key. The display will show “--------“,
then the AD value. The calibration is now finished.

To return to the weighing mode, press the ON/OFF key to turn the
power off. Press the ON/OFF key again to turn on the power and
return the machine to weighing mode. Place the weight on the platter
again to ensure the weighing is correct. If not, repeat the calibration
process.
7 Maintenance and service
The weighing machine must be treated carefully and cleaned regularly. It is a
precision instrument.
For maintenance-work, the machine must be separated from the power supply
(remove power adapter plug from socket). Also ensure that the weighing
machine cannot be reconnected to the power supply during any work by a
third party.
Take care during cleaning that no liquid penetrates into the weighing machine.
If liquid is spilled on the machine, the latter must immediately be disconnected
from the electricity supply. The machine may only be used again after it has
first been checked by a service engineer.
The connections on the back of the machine and the power adapter should not
come into contact with liquids.
Regularly dismantle the weighing platter from the base unit and remove any
dirt or dust from under the weighing platter and on the weighing machine