
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
if audit trail is enabled), and navigate to CALIBR (see Figure 4-1).
2. Press
or to go to the WZERO parameter.
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
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
to Calibrate WZERO.
If calibration of zero is not required, press
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
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
when the value is correct.
• Press
or to move the decimal point position.
9. Press
to store the WVAL value and advance to WSPAN.
10. With
WSPAN displayed, press
or to view the previously captured A/D count value for span.
11. Place test weights on the scale equal to WVAL.
12. Press
to calibrate WSPAN.
If calibration of span is not required, press
to exit.
13. After
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
to return to the weigh mode.
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