DIGIWEIGH DWP-L Series - Manual (Page 16)

15
Calibration
The indicator is calibrated by following the procedures embedded in H16 (Zero) and H17
(Span) of the Setup Menu. Each procedure enters a value into the indicator's
non-volatile memory -H16 the zero value (deadweight) and H17 the span value (test
weight). The minimum test weight that can be used is 1% of full-scale capacity. After the
two calibration procedures are executed successfully, you should record both calibration
values in Table 6-1 using the H18 View procedure.
NOTE: This chapter assumes that the indicator is in Setup (“H”) Menu mode.
Zero Calibration
1 While in the Setup mode, scroll to "H 16", then scroll down once using the ZERO
key to enter zero calibration menu. The display will momentarily show "C 0"
followed by a value. This value is the internal A/D count and can prove useful
when trying to troubleshoot setup problems.
2 After making sure that there are no test weights on the platform, press the ZERO
key again to zero out the displayed value.
3 Waiting for about 30 seconds. Press the NET/GROSS key to save the zero point
value. The display will show "EndC0"
4 momentarily, then revert back up to H16. At this time, proceed to the H17 span
calibration to complete indicator calibration.
Span Calibration
The indicator has three types in span calibration that can improve the indicator’s
ability to meet the multi-graduation .
1. While in the Setup mode, scroll to "H 17", then scroll down once using the ZERO
key to enter span calibration menu.
2. The display will momentarily show "C 1" for the span calibration, followed by a
value with one flashing digit. This value will be zero with the Decimal Point
parameter selected in H10. Place the test weight on the weighing mechanism.
3. Use the four directional keys to adjust the displayed value to the actual test weight
value. Increase the flashing digit by pressing the UNITS key. Decrease the flashing
digit by pressing the ZERO key. Pressing the PRINT key or the TARE key will change
the position of the flashing digit. Setting the exact value
4. Waiting for about 30 seconds., press the NET/GROSS key to save the value.
5. If the calibration was successful, and H15=2, the display will show "EndC1"
momentarily, then go to “C2”
6. Repeat 2-4 using different test weight value .
7. If H15=3, the display will show “EndC2” momentarily, the go to “C3”.