Calibration
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11.2.1 Calibration
Measure and record the mV/V value of the transducer at least three consecutive times. Three
measurements is the minimum recommended number of reference points.
Each measurement includes an mV/V checkpoint without any torque applied
over the transducer and one checkpoint when a specific torque level is applied
over the transducer using the deadweight equipment.
These measurement results or calibration checkpoints will serve as the basis on
which the ACTA 3000 calculates a calibration value, which is then compared
with the current calibration values of the transducer.
7. You are in the “Deadweight calibration” window as described in step 6.
Now press the ‘Save’ menu block to save the first checkpoint (mV/V value) with
no load on the transducer.
8. The first checkpoint without load is saved and you can see that row number 2 in the
“Deadweight calibration” window changes and now reads: Load on transducer.
9. Apply torque to the transducer using the deadweight equipment. As you apply
torque you can see that the mV/V value changes – it increases.
10. When the load is stable, press the ‘Save’ menu block again.
11. A small pop-up window appears asking you to input a torque value manually. The
torque value you input here is the value produced by your “Deadweight equipment”
when you pressed ‘Save’ in step 11.
12. When you have entered your torque value, press ‘Enter’. The first checkpoint with
load is saved and you can see that rows 1 and 2 in the “Deadweight calibration”
window change and now read: “Number of cal. points 1” and “No Load on
transducer” respectively.
13. Remove applied torque on the transducer.
You have now completed the first full reference mV/V measurement for this
transducer, both at rest and at a specific torque value.
14. Now repeat steps 7-13 at least two more times.
15. When you have done this, the "Deadweight calibration” window should
display “Number of cal. points 3” confirming that three full reference mV/V
measurements have been completed.
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