Unpacking, Setup And Commissioning; Site Of Installation, Place Of Operation For Scales - KERN VHB Mode D'emploi

6 Unpacking, Setup and Commissioning

6.1 Site of installation, place of operation for scales

The balances are designed in a way that reliable weighing results are achieved in
common conditions of use.
You will work accurately and fast, if you select the right location for your balance.
Therefore, observe the following for the installation site:
 The load must be lifted clear of the display unit's case and other pallets.
Incorrect lifting of a load
 The accuracy of the weighing system is falling by approximately 0.1 % per
degree if there is a slant of more than 2°. Holes and unevenness, too, have
this effect. A smooth floor is ideal.
 Optimum accuracy in weighing results is achieved if the load centre is
between the forks. The forks are easily bent and twisted when the load is off-
centre. This may result in diminished accuracy. In verifiable models off-centre
loads, or slants affecting accuracy, activate the inclination switch which in turn
disconnects the display.
Non-optimal positioning of load
 Temperature range: The maximum deviation for 0.1% of the weighed load is
between -10 and +40°C. Outside this temperature range deviations of up to
0.3% may occur.
 Avoid jarring during weighing
 Protect the balance against high humidity, vapours and dust
 Do not expose the device to extreme dampness for longer periods of time.
Non-permitted condensation (condensation of air humidity on the appliance)
may occur if a cold appliance is taken to a considerably warmer environment.
In this case, acclimatize the disconnected appliance for ca. 2 hours at room
temperature.
 Major display deviations (incorrect weighing results) may be experienced
should electromagnetic fields (e.g. due to mobile phones or radio equipment),
static electricity accumulations or instable power supply occur. Change
location or remove source of interference.
VHB/VHS-BA-e-1613
Correct lifting of a load
Optimal positioning of load
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