SCHATZ AG Tel. +49 (0)2191/698-0 www.schatz.ag 2003 EQS 5366_e
P. O. Box 11 06 69 Fax +49 (0)2191/60023 info@schatz-mail.de
D-42866 Remscheid
Calibration unit
for torque wrenches
SCHATZ®CALITEST
• calibration range 0.5 N·m.....3000 N·m
• produces calibration certificates, tool histories and reminder lists
• automatic calibration according to ISO 6789
• internationally recognised calibration standard for torque wrenches
• multi-range sensor for rapid calibration
Applications
The test stand is equipped with the necessary technical measuring
capabilities and drive methods for the conduct of tests to ISO 6789 or
others. The user can also program his own test procedures as desired
and conduct tests and calibrations automatically.
The ISO 6789 test procedure distinguishes between torque wrenches
with pre-set release and those with torque indicator and calculates a
tolerance of 4 % or 6 % according to class, type and range. Calibration
must be undertaken after every 5000 measurements and the
measurement uncertainty of the calibration unit may only be max. 1 %
of the reading. The ambient temperature is specified at 18°C to 28°C
and the test comprises five measurements on 80% of the target data
which must be obtained within 1 to 4 seconds. Calibration is carried on
approx. 20 %, approx. 60 % and 100 % of the measurement range with
increasing force and the adjustable wrench may only be adjusted
upward from the lower setting.
Description
The core of the test stand is the multi-range sensor. Specially
developed for the calibration of torque wrenches, it provides for
testing in the range of 5 N·m to 1000 N·m (or 2 N·m to 300 N·m,
0.5 N·m to 30 N·m or 100 N·m to 3000 N·m) using one sensor. The
deviations are less than 1 % of the reading shown. The calibration unit
thus fulfils the requirements of ISO 6789 without the tester having to
change the sensor for the relevant measurement range.
The drive units can be supplied in four different sizes and up to two
drive units can be connected to one measuring and control unit. This
provides a maximum test range of 0.3 N·m to 1000 N·m or 5 N·m to
3000 N·m.
The CEUS 8.0 PC software can be supplied as a stand-alone or network
version. Torque tools are monitored automatically in the test scheme
and calibration certificates are produced according to the client's
wishes.