Measuring strategies ACTA 4000 User Guide
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5.2.3 Multistage
The multistage measurement strategy is used in some calibrating situations when ACTA is controlling the
tightening. It will measure the angle and torque independently to avoid influence of timings in torque
measurements. The strategy can be used with PowerFocus3000/PF4000 and PowerMACS. The multistage
measurement follows the scheme below.
The multistage measurement strategy demands RS232 or Ethernet communication
between ACTA and controller.
Multistage
Legend:
Number Parameter
1 Peak Torque
2 Target torque
3 Target angle
To use the multistage strategy, do the following:
1. Tighten joint forwsard until target torque is reached. The torque values measured by ACTA as well as
the controller torque are stored.
2. Smoothly reverse joint 720 degrees.
3. Reverse target angle degrees while measuring angle. Store ACTA and controller angle value.