8
Bench Scale 940C • Operating Manual and Adjustment Guide
2.7 Adjustment
Owing to the high resolution of the scale, the different gravitational force (g value) at different plac-
es of use must be taken into account.
To this end, the scale should be adjusted using test weights (accuracy class at least M1, preferably
F2) before being taken into operation.
Adjustment should be performed only when necessary.
Inaccurate values on the display or replacement of the load cell or the weighing electronics can
necessitate an adjustment.
2.7.1 Conditions
!
•
Switch on the scale and wait 15 minutes before performing the adjustment.
•
Adjustment can be performed only with fixed weight values. Weights corresponding to half of
and the full maximum safe load are required.
2.7.2 Adjustment procedure
•
Align the scale exactly using the integral bubble level (spirit level).
•
Remove any load from the scale.
•
Power off the scale by pressing the
key.
•
Press and hold down the
key and power on the scale using the
key.
•
Hold down the
key until such time as the internal measured value appears on the display
(approx. 2s).
(e.g.
)
•
With the weighing platform at no load, press the
key.
•
The first adjustment point (zero point) is saved.
•
appears briefly on the display.
•
The weight value for the second adjustment point (half the maximum safe load of the scale)
appears on the display.
•
Subject the scale to the weight indicated and confirm by pressing the
key.
•
appears briefly on the display.
•
The weight value for the third adjustment point (maximum safe load of the scale) appears on
the display.
•
Subject the scale to the weight indicated and confirm by pressing the
key.
•
appears briefly on the display and then
.
•
End adjustment by pressing the
key.
•
Power off the scale by pressing the
key.
