Rice-lake 880 Performance Series Indicator/Controller Techni Manual de usuario Pagina 64

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58 880 Technical/Service Manual
4.1 Front Panel Calibration
1. Put the indicator in setup mode using the setup switch on the back of the unit, see Figure 3-1, (or use
MENU
if audit trail is enabled), and navigate to CALIBR (see Figure 4-1).
2. Press
TAR E
or to go to the WZERO parameter.
Note
Note
Note
WZERO is used for most normal calibrations with an empty scale. If a special situation exists, where a LAST or
TEMP zero may be used, refer to Section 4.2 or Section 4.3 for more information before performing a WZERO
calibration.
3. Press
TAR E
or to view the previously captured A/D count value for zero.
4.
Remove all weight from the scale platform. If the test weights require hooks or chains, place the hooks or
chains on the scale for zero calibration.
5. Press
TAR E
to Calibrate WZERO.
If calibration of zero is not required, press
MENU
to exit.
6. The indicator displays CALIBRATING, PLEASE WAIT while calibration is in progress. When complete, WVAL
is displayed.
To view the new zero A/D count, repeat Step 3, but instead of pressing Enter while viewing the value, press
Menu to exit.
7. With WVAL displayed, press
TAR E
to display the stored calibration weight value.
8. To edit the value:
Press
or to select the digit.
Press
or to increment or decrement the value.
press
TAR E
when the value is correct.
Press
or to move the decimal point position.
9. Press
TAR E
to store the WVAL value and advance to WSPAN.
10. With
WSPAN displayed, press
TAR E
or to view the previously captured A/D count value for span.
11. Place test weights on the scale equal to WVAL.
12. Press
TAR E
to calibrate WSPAN.
Note
Note
If calibration of span is not required, press
MENU
to exit.
13. After
TAR E
is pressed, the indicator displays CALIBRATING, PLEASE WAIT. When complete WLIN is
displayed.
To view the new span A/D count, repeat Step 9, but instead of pressing Enter while viewing the value, press
Menu to exit.
14. When calibration is complete press
MENU
to return to the weigh mode.
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