Rice Lake 920i Installation Manual V3.13 - Manual (Page 60)

54 920i Installation Manual
4.3 Serial Command Calibration
To calibrate the indicator using serial commands, the
indicator serial port must be connected to a terminal or
personal computer. See Section 2.3.3 on page 10 for
serial port pin assignments; see Section 9.0 on
page 86 for more information about using serial
commands.
Once the indicator is connected to the sending device,
do the following:
1. Place the indicator in setup mode (dis play
reads
CONFIG
) and remove all weight from the
scale platform. If your test weights require
hooks or chains, place the hooks or chains on
the scale for zero calibration.
2. Send the SC.WZE RO#n s erial command
(where n is the number of the scale) to
calibrate zero.
3. Place test we ights on the sc ale a nd us e the
SC.WVAL command to enter the test weight
value in the following format:
SC.WVAL#n=vvvvv<CR>
4. Send th e SC.WSPAN#n seria l command to
calibrate span.
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 S C.WLIN#n.V1 command se ts the test
weight value (vvvvv) for linearization point 1.
The SC.WLIN#n.C1 command c alibrates the
point. Repeat using the S C.WLIN#n.Vx and
SC.WLIN#n.Cx commands as required for
additional linearization points.
6. To remove an of fset value, cle ar all weight
from the scale, including hooks or chains used
to ha ng test weig hts, then se nd the
SC.REZERO#n serial command.
7. Send the KSA VEEXIT serial command to
save the calibration changes and exit setup
mode.
4.4 iRev Calibration
The
iRev
Calibration Wizard provides step-by-step
scale calibration. With the
920i
connected to the PC,
select the Calibration Wizard from the Tools menu on
the
iRev
Scales display, then follow the steps listed
below to calibrate the scale. See Section 5.0 on
page 56 for a general overview of the
iRev
utility.
1. On the first Calibration Wizard display (see
Figure 4-3), select whether you are
performing a stand ard (zero and span)
calibration or a multi-point linear calibration.
Click the
Next
button to continue.
Figure 4-3. iRev Calibration Wizard
2. Next (see Figure 4-4), selec t the sca le you
wish to calibrate.
Figure 4-4. iRev Scale Selection Display
3. Enter the test weight used to calibrate the
scale (see Figure 4-5). 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.
Figure 4-5. iRev Test Weight Value Display