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Stahlwille PerfectControl 7794


The electronic perfectControl® calibrating unit with its electric drive considerably reduces the amount of effort and time required for calibration and adjustment tasks on torque wrenches.



Since the new DIN EN ISO 6789:2017 standard that governs design conformance testing and recalibration procedures for torque tools came into force, the calibration process has become much more complex. Despite this the TORKMASTER software enables fast, efficient calibration of torque tools including the generation of calibration certificates that conform fully to the new requirements.


  • TORKMASTER enables simple calibration of torque wrenches and torque screwdrivers in line with the new DIN EN ISO 6789:2017 standard Parts 1 and 2 – with remarkably little effort on the part of the user. The previously applicable standard DIN EN ISO 6789:2003 is still supported.
  • In conjunction with the PerfectControl unit, it is even possible to run time-saving, fully automatic calibrations.
  • PerfectControl and TORKMASTER can also be integrated in well-known CAQ systems. This allows the calibrating unit to receive all the data
    required for the calibration process and transmits the evaluated readings back to the customer’s system after completing the calibration.
  • In the TORKMASTER application, the main window displays the graphic torque path and the measured trigger value.
  • Calibration certificates can be printed or output as PDF files.
  • The various user permission levels simplify administrative activities in day-to-day use.
  • A calibrating history can be stored for each tool.
  • »As found« and »as left« calibrations can be documented.
  • Choice of eight installation languages.


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