Maintenance and Calibration 7
man-CH-PVF-C-V17-2 Minilab 51
9. Press the "Return" Button (Figure 8.1, Item 2). The Piston
now retracts to the original position.
10. To check the force, a force measurement device is necessary
(e.g. Part No. 596-061-103).
11. Reduce the operating pressure to about 1 bar (force of about
800 N). Place the force measurement device with the
Pedestal under the Piston and press the "Measurement"
button. The force from the measurement device must be
indicated on the display (± 5 N). Repeat the procedure with
about 2.5 bar (Force about 2000 N).
If the tolerances for the displacement or force are exceeded, the
Minilab must be calibrated again. Please contact the technical service
of Simpson Technologies.
The Minilab can also be checked with the Test Spring. In this case,
use a suitable spring which has known values and carry out a
compressive strength measurement with the spring in place of a test
specimen (see Section 6.2.3 for instructions on how to carry out this
measurement).
Compare the results with the spring data. This is a simple and
relatively precise procedure for checking the correctness of a
measurement.
Suitable springs for this procedure are available as accessories.
Exit the calibration menu by choosing another menu. The opening
screen is now displayed and the Minilab is ready for the first
measurement.
Details for the various measurements can be found in Section 6.
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