KERN WTB-N Operating Instructions Manual page 16

Level balance with foot screws until the air bubble of the water balance is in the
prescribed circle.
Pressure compensation screw:
[1]
On the lower side of the balance there is a pressure compensation screw
has to be opened for the weighing process.
balance.
WTB-N_WTB-NM-BA-e-1421
1 Rechargeable battery
compartment
2 Mains port
3 Pressure compensation screw
Fasten the screw before cleaning the
[1]
which
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