Rice Lake 820i Programmable Indicator/Controller - Installation Manual - Manual (Page 54)

50 820i Installation Manual
5. Up to five linearization points can be calibrated
between the zero and span calibration values.
Use the following commands to set and
calibrate a single linearization point:
SC.WLIN#n.V1=vvvvv<CR>
SC.WLIN#n.C1<CR>
The SC.WLIN#n.V1 command sets the test
weight value (vvvvv) for linearization point 1.
The SC.WLIN#n.C1 command calibrates the
point. Repeat using the SC.WLIN#n.Vx and
SC.WLIN#n.Cx commands as required for
additional linearization points.
6. To remove an offset value, clear all weight
from the scale, including hooks or chains used
t o h a n g t e s t w e i g h t s , t h e n s e n d t h e
SC.REZERO#n serial command.
7. Send the KSAVE serial command to save the
calibration changes; send KEXIT to exit setup
mode.
4.4 Revolution Calibration
The
Revolution
Calibration Wizard provides
step-by-step scale calibration. With the
820i
connected to the PC, select the Calibration Wizard
from the Tools menu on the
Revolution
Scales display,
then follow the steps listed below to calibrate the
scale. See Section 5.0 on page 51 for a general
overview of the
Revolution
utility.
1. On the first Calibration Wizard display (see
F i g u r e 4 - 3 ) , s e l e c t w h e t h e r y o u a r e
performing a standard (zero and span)
calibration or a multi-point linear calibration.
Click the
Next
button to continue.
Figure 4-3. Revolution Calibration Wizard Display
2. Enter the test weight used to calibrate the
scale. If chains or hooks are used to hold the
weights, check the box below the test weight
value entry. This adds a rezero step to the
calibration sequence.
3. Remove all weights from the scale. If chains
or hooks are used, place them on the scale.
Press the
Calibrate Zero
button to perform the
zero calibration. A message box appears when
the process is complete.
4. Apply the test weights to the scale. Press the
Calibrate Span
button to perform the span
calibration. A message box appears when the
process is complete.
5. If the option for chains or hooks was selected
in step 2, the Rezero display is shown.
Remove all weights from the scale, including
chains or hooks. Press the
Re-Zero
button to
calibrate the zero offset.
6. If performing a multi-point linear calibration,
up to five other calibration weight values can
be entered on the display. The weights must
be in ascending order and must not include
zero or the span weight. Enter the weight
values and click the
Go
button to calibrate
each point.
7. Review the new calibration values then click
Finish
to close the Calibration Wizard. To
restore the current calibration values, click
Cancel
.