LW Measurements LDS Large Drum Scale - Manual (Page 17)

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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 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.