LW Measurements LBS Large Bench Scale - Manual (Page 10)

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3.4 Choice of a suitable location
The environment in which your weighing machine is used is
very important. Air movement, temperature changes,
vibrations, direct sunlight, etc. all influence the performance of
high precision weighing machines. Therefore, place your
weighing machine on a solid, sturdy surface that is free of air
currents, vibration and not in direct sunlight. The surface
should not be magnetic and should be located away from
doors, windows, heaters, air conditioners and fans.
To summarize:
−
Put the weighing machine on a solid, firm and
preferably vibration-proof, horizontal base.
−
Make sure that the weighing machine cannot be
shaken, bumped or knocked over.
−
Protect from direct solar radiation at all times.
−
Avoid drafts and excessive temperature fluctuations.
3.5 Checking the mains voltage
The following Safety recommendations must be observed
when connecting the weighing machine to the mains:
The weighing machine may only be operated with the power
adapter supplied.
Check before connecting the power adapter to the mains
supply, that the operating voltage stated on the power adapter
agrees with the local mains voltage.
If the operating voltage is not the same as the mains voltage,
the power adapter must, on no account, be connected to the
mains supply. Contact your customer service representative.
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3.6 Calibrating the weighing machine
Since the Earth’s gravity is not the same everywhere, each
weighing machine must be adjusted to compensate for the
gravity differences at each location in accordance with the
underlying physical weighing principles. The adjustment
process, known as calibration, may need to be carried out on
initial installation and after each subsequent relocation.
In order to ensure exact measurements, it is recommended
that the balance should be calibrated regularly using a known
external calibration weight (see Section 5 below).
4 Working with the application menu
4.1 Display messages and key functions
4.1.1 Display messages
NOTE: When the low battery indicator is orange, you
should recharge the battery for 8-10 hours. Once
charged, the orange light will turn green. Over-charging
may cause permanent damage.
Low battery indicator
Negative value indicator
Zero value indicator