Functions and Operations
5.20 Setting the present measurement value to a reference value of "0"
5-53
5.20
Setting the present measurement value to a reference
value of "0"
Forced-zero is the function that forces the present measurement value to "0".
This function can be used for applications such as making comparative judgements where the tare or
container weight is canceled and only the weight of the contents are used for measurement.
When forced-zero is cleared, the display returns to the actual measurement value.
The changes to measurement values when forced-zero is executed or cleared during measurement are
shown below.
• Maximum and minimum values are not initialized even if forced-zero is executed.
• When the display range has been exceeded or a sensor error occurs, forced-zero cannot be executed
while no measurement is being performed. (Forced-zero can be cleared but not during RESET input.)
• The forced-zero and forced-zero clear operations are stored in the internal non-volatile memory of the
K3HB-S, so the status is held even if the power supply is turned ON again.
There are two methods for executing and clearing forced-zero: using key operations and using ZERO inputs.
● Using key operations
<Executing forced-zero>Press the U[UP] Key for less than 1 s while the present value is displayed to
execute forced-zero.
<Clearing forced-zero> Press the U[UP] Key for at least 1 s to clear forced-zero.
● Using ZERO inputs
<Executing forced-zero>Forced-zero is executed on the rising edge of the ZERO input ON signal (when
ZERO input is ON for 1 s max.).
<Clearing forced-zero> Forced-zero is cleared when ZERO input is ON for 1 s min.
Setting the present measurement value to "0" again using the forced-
zero reference → P.5-54
(Tare zero)
Prohibiting key-operated forced-zero → P.5-80
(Key protect)
Explanation of Functions Forced-zero
0
UP Key
ZERO input
1 s
Measurement
value
Execute
Execute
Release
Shift value
Shift value
90000
12.3
U
90000
0.0
U
U
(Execute)
ZERO lit
ZERO not lit
1 s min. (Forced zero released)
Forced zero can executed
again even after it has
been used.
Remarks
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