Pe R A Ti O N; Zeroing The Display; Taring; Weighing A Sample - Intelligent Weighing Technology TB Series User's Operation Manual

4. OPERATION

4.1 ZEROING THE DISPLAY

You can press the ZERO/ENTER key at any time to set the zero point from which
all other weighing and counting is measured, within 10% of power up zero. This will
usually only be necessary when the platform is empty. When the zero point is
obtained the display will show the indicator for zero.
The scale has an automatic rezeroing function to account for minor drifting or
accumulation of material on the platform. When the weight goes over 20% of the
full capacity, the "read zero" function is obsolete.

4.2 TARING

Zero the scale by pressing the ZERO/ENTER key if necessary. The zero indicator will
be on.
Place a container on the platform. A value for its weight will be displayed.
Press the TARE key to tare the scale. The weight that was displayed is stored as
the tare value and that value is subtracted from the display, leaving zero on the
display. The "TARE" indicator will be on. As product is added only the weight of the
product will be shown. The scale can be tared a second time if another type of
product is to be added to the first one. Again, only the weight that is added after
taring will be displayed.
When the container is removed a negative value will be shown. If the scale was
tared just before removing the container this value is the gross weight of the
container plus all product that was removed. The zero indicator will also be on
because the platform is back to the same condition it was when the ZERO/ENTER
key was last pressed.

4.3 WEIGHING A SAMPLE

To determine the weight of a sample first tare the empty container then place the
sample in the container. The display will show the weight and the units of weight
currently in use.