Mecmesin MultiTest-x manual
49
ix) Set the crosshead to ‘park’ a few millimetres above the next undistorted
sample at the end of the test. If, the crosshead is set manually just above the
top of the first specimen, and if specimens vary in height by no more than one
or two millimeters, setting ‘-2mm’ as the ‘home location’ (see, [1], [3], [3], [5])
should give enough clearance for testing any batch of specimens.
2) Choosing a Name
i) Change the name of the current procedure ([1], [4], [4] Procedure Name), by
overwriting the default name with ‘TUTORIAL-2’. (Note that it will be necessary
to reject the opportunity to re-name other procedures, before the Utilities menu
is re-displayed)
3) Creating the Program
The sequence of control commands can be created by selecting ‘Define T(e)st
Profile’ ([1], [3], [3], [1]):
i) Set a test speed of 25mm/min for segment A
ii) Opt for segment A to run to a given load; enter zero as that load, i.e. run until
the sample breaks.
iii) Decline the opportunity to create a segment B by choosing the ‘No’ option.
Note: the crosshead could be returned to a particular position by defining an
appropriate Segment B, indeed this is just what has been done in Tutorial 1, see 3(iii)
to 3(v). However, by using the Home facility, see 1(vii) to 1(ix), Segment B is left
available, for creating a ‘cyclic’ program, perhaps - this is vital in Tutorial 3.
4) Defining the Calculations
The required calculations can be set up within the ‘Select Analysis’ facility ([1], [3], [2],
[1])
i) Activate the Peak calculation
ii) Activate a Load at Displacement calculation
iii) Activate the Free Height calculation
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