28
11. Auto-tare Function
The HVC-WP / HWC-WP series has an auto-tare function to be used with the comparator mode
enabled. Using this function in check weighing, the scale automatically tares, then displays OK for a
certain amount of samples and repeats this process for the next weighing.
Start with display zero value after tare operation. Place or take away objects until the comparison
result shows OK.
When the stable display is maintained for the duration specified in the function setting
, the
scale will automatically tare the weighing value, show zero value and be ready for next weighing.
In some countries or areas, the auto-tare function can not be used on the Legal for Trade models
and the selection in the function settings
at
,
at-t
and
at-f
is not available.
To use the auto-tare function, set the function settings below.
Function settings
Contents
Cp 1
Compare all weighing data (other settings may be used depending on the application).
at 1
Auto-tare function enabled.
at-t 0
to
9
Select the timing to tare automatically to avoid the wrong tare operation, for example,
too early to tare or too late to go to the next weighing.
Take-away check weighing
Cp-p 1
(Example with
Cp-l 0
setting)
Take-away check weighing (negative comparison) is the way to compare a negative weight while
taking away objects from a container.
Set the function
Cp-p 1
together with the auto-tare function enabled
at 1
. In this operation
mode, the scale operates as “take-away the objects”
“OK and stable”
“auto-tare”
“take-away the objects”
······.
In this setting, the polarity of LOLO, LO, HI, and HIHI limit values are ignored and the scale shows
the comparator results as below.
Note: To start take-away check weighing, be sure to use the TARE key to tare the weight of the
container filled with objects. The ZERO key may zero the display, but the scale goes below the
zero point by taking away the objects. Then, the auto-tare function or TARE key does not work.
When the function "Tares the initial weighing value (of container)
at-f 1
" is selected :
To start the auto-tare function, usually the container (filled with objects) will be placed on the weighing
pan and its weighing value must be tared using the TARE key.
When
at-f 1
is selected, the scale will tare the initial weighing value (of container) automatically.
When the entire load on the weighing pan is removed, the scale will return to the zero point and the
value of the tare weight will be automatically cleared. If the scale does not return to the zero point,
press the ZERO key to clear the tare weight.
If the scale is equipped with the optional USB interface (HVW-02BCWP) or optional RS-232C
serial interface (HVW-03CWP), the OK weighing data can be output automatically. Set the
function setting
prt1
to
7
or
8
.