LW Measurements MRW 33 Mid Resolution Washdown - Manual (Page 14)

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3.3 Assembling your weighing machine
The weighing machine is delivered in partly dismantled condition. Assemble the individual components in
the following sequence:

Place the unit holder in position and add the weighing pan

Insert the power adapter cable plug into the socket at the rear of the balance.
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 or knocked over

Protect from direct solar radiation

Avoid drafts and excessive temperature fluctuations
3.5 Checking the mains voltage
The following Safety recommendations must be observed when connecting the balance to the mains:
The balance 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 customer service.
3.6 Calibration of the weighing machine
Since the Earth’s gravity is not the same everywhere, each balance must be adjusted to compensate for
the gravity differences at each location in accordance with the underlying physical weighing principles.
This adjustment process, known as calibration and must 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).