A&D Weighing FG-150KBM - Manual (Page 7)

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? The RE-ZERO , ZERO and TARE switches work when the weight value is
stable.
? The RE-ZERO and ZERO switches will zero the scale if the weight is within
±2% of the weighing capacity (kg) around the power-on zero point. The ZERO
indicator ? turns on.
? If the weight exceeds +2% of the weighing capacity (kg), the RE-ZERO switch
will tare the scale. In this case the ZERO and NET indicators turn on.
? The TARE switch will tare the scale when the weight is plus value. In this case
the ZERO and NET indicators turn on.
? The ZERO operation clears tare operation previously done and NET indicator turns
off.
RE-ZERO Switch
Clears the display to zero. In the setting mode, this
switch is used to select a digit blinking to change its
value.
TARE Switch U.S.A. model
Subtracts tare (container) weight on the weighing pan.
ZERO Switch U.S.A. model
Zeroes the scale and turns the display zero. In the
setting mode, this switch is used to select a digit blinking
to change its value.