Maintenance & Troubleshoot
H00007091 - Absolute Arm User Manual │Version 5.2.0 (2019-03-07) │173
H.5 ACCURACY VERIFICATION / CALIBRATION
As any other precision measuring device, the Absolute Arm must be checked periodically.
Depending on the intensity of use, and on the number of users, this period of verification may vary from a
systematic verification to an annual recertification.
In fact, 3 levels of verification should be understood:
User systematic checking
The user “systematic” control: every time the arm is used, a quick check out is recommended, to ensure
that the arm keeps safe since last use. Indeed, it is important to ensure good measurement, so in case of
any issue (shock, damage …), a quick check avoids starting a session of wrong measurement.
RDS provides tools to do such verification, for probing, tubing or scanning. (Refer to RDS Data Collector
manual).
Furthermore, a control program can include a quick verification at the beginning (to avoid start wrong
measures) and at the end (to ensure that the system was OK all along the measurements) of the program.
This must be an easy and quick process, such as a gage block or a gage ring measurement (the comparison
of the centre point between the start and the end verifications can ensure that nothing moved during the
session).
Customer’s periodic control
According to the intensity of use, a periodic deeper control is recommended; this can consist by a complete
certification process in RDS data collector, a customized gage measurement process, or even a simpler
measurement.
Annual recertification by Hexagon Manufacturing Intelligence.
Finally, depending on the quality policy of the company, or in case of doubt, a complete recertification
according to the B89, ISO10360-12 or VDIVDE standard, in Hexagon Manufacturing Intelligence precision
centres, can be done every 6 months, every year, or every 2 years. This recertification is done in all the
recommended conditions.
RDS procedures
RDS Data Collector has multiple “Quick-check” procedures the user can perform to verify arm and
accessories accuracy, and alignment. It also has full certification procedures such as the B89.
Please refer to RDS Data Collector manual for full descriptions of each procedure.
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