4 theoretical calibration, 5 temporary zero calibration, Theoretical calibration – Rice Lake iQUBE2 Digital Diagnostic Junction Box User Manual

Page 43: Temporary zero calibration

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Calibration

39

8. Click

Next

.

The Section Match Calibration Wizard displays all load cells installed on the system.

Figure 4-6. Section Calibration wizard

9. Place the test weight whose value you entered in step 5, on a section of the scale.
10. Click

Measure

for the load cell pair corresponding to the section with weight on it.

Under Status,

Success

will display when measurement is finished. As each measurement is completed, the

next cell will become available to measure.

11. Repeat steps 9-10 until each section has been measured.
12. Click

Next

.

13. If certified test weights are not being used, a span calibration must now be completed. If they were being used

(see Step 7), calibration was completed during normalization.

14. Add the test weight to the scale and click

Calibrate Span

.

15. If linear points were selected in Step 4, enter the applied weight in the text box and click

Measure

.

The Status will display

Success

when complete.

16. Click

Next

.

17. If chains or hooks are being used, remove them (along with all other weight) from the scale and click

Re-Zero

Calibrate

. Click

Next

.

18. Calibration is complete. Click

Finish

to commit the calibration values and send them to iQUBE

2

.

Click

Cancel

if you want to abort. This will require a re-calibration at a later time.

4.2.4 Theoretical Calibration

This option mathematically calibrates the scale using the full scale capacity and load cell sensitivities. Load cell
sensitivities can be specified using the procedure explained in Section 3.2.5 on page 27.

1. Click the

Perform Theoretical Calibration

button.

2. Click

Calibrate

.

3. If all load cell specific data (capacity and sensitivity) has been entered for the scale, click

Yes

.

4. Ensure there is no weight on the scale and click

OK

.

Theoretical calibration is complete.

4.2.5 Temporary Zero Calibration

This option uses the zero value from the last calibration and performs only a span calibration. Because the last cal-
ibration’s zero value is used, a previously calibrated scale is required. This calibration option could be used for a
tank that isn’t empty.

1. From the

General

tab, select

Temporary Zero Calibration

from the

Calibration Type

pull-down menu.

2. Click

Calibrate

.

The Temporary Zero Calibration wizard appears.

3. If linear points are being used, enter the applied weight in the text box and click

Measure

.

The Status will display

Success

when complete.

4. Click

Next

.

5. If chains or hooks are being used, remove them (along with all other weight) from the scale and click

Re-Zero

Calibrate

. Click

Next

.

6. Calibration is complete. Click

Finish

to commit the calibration values and send them to iQUBE

2

.

Click

Cancel

if you want to abort. This will require a re-calibration at a later time.

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