Wrench standards September 1st 2007 Crane Electronics' 25 and 75Nm
ProWrench Opta torque and angle
wrenches now have homologation
from a global car manufacturer,
meaning that they satisfy the
manufacturer's internal
performance standards.
The homologation standards for
torque performance are based on
DIN ISO 6789 which relates to
assembly tools for screws and nuts.
It sets out requirements and test
methods for design conformance
testing, quality conformance test
and calibration procedures.
For torque and angle
measurement, homologation is
based on three VDI/VDE standards:
2646 covers minimum requirements
in calibrations for torque measuring
devices, 2647 provides guidelines
for dynamic checking of tools
according to ISO 5393, and 2648
covers transducers or measuring
systems for measurement of angle,
instructions for traceable
calibration, indirect measure angle
measuring systems. More articles from Crane Electronics Ltd: |