T Scale JWP Operation Manuals - page 8
JWP digital weighing scales operation manual
REV: C1, June 2012
JWP digital weighing scales operation manual
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 on because the platform is back to the same condition it was when
the ZERO/ENTER key was last pressed.
3.3 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.
4 PERCENT WEIGHING
The scale will allow a sample weight to be shown as 100%. Then any
other weight placed on the scale will be displayed as a percentage of the
original sample. For example is 350g is placed on the scale and the %
key is pressed the display will show 100.00%.
Removing the 350g weight and putting a 300g weight on the scale the
display will show 85.71% as 300g is 85.71% of 350g.
Note: the scale may jump by large numbers unexpectedly if small
weights are used to set the 100% level.For example if only 23.5g is on a
scale with 0.5g increments and the scale is set to 100%, the display will,
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show 100 %, however a small change of weight will cause the display to
jump to 102.13% as one scale division (0.5g) increase to 24.0g will be
equivalent to a 2.13% increase.
Removing the 350g weight and putting a 300g weight on the scale the
display will show 85.71% as 300g is 85.71% of 350g.
Pressing the SMPL key will return the scale to weighing.
5 PARTS COUNTING
When the scale is showing weight, pressing the SMPL key will start the
parts counting function.
Press the SMPL key to begin. The scale will show "SP 10" asking
for a sample size of 10 parts. Change the sample size by pressing the
TARE/ key. the display will cycle through the options: 10,20, 50, 100,
200 and back to 10.
Press the ZERO/ENTER key when the number matches the number of
parts used for the sample. As more weight is added the display will show
the number of parts (pcs). Press the MODE key to
display unit weight (g/pcs), Total weight (kg) or the count (pcs).
Press the SMPL key to return to normal weighing.
6 CHECK-WEIGHING
Check- weighing is a procedure to cause an alarm to sound
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