(b) The load cell, except for a 2511-200 series compression
cell, is mounted for testing above the moving crosshead (re-
quires special fixturing).
Note
When using a 2511-200 series compression
cell and the TESTING AREA function is set to
ABOVE XHEAD, any strain extensometer
used must also have a positive (+) output when
compressed. If the sign of the extensometer is
not the same as the sign of the load cell, the
strain limits do not function properly. Choose
another extensometer of the proper polarity or
call an Instron Regional Sales and Service
Office for additional extensometers.
To change TESTING AREA, enable it by initially press-
ing S1. The Main Panel Display shows “SL”. You can
press the TESTING AREA key and change the function
to BELOW AHEAD or ABOVE XHEAD while this
condition is active.
Note
The TESTING AREA key stays enabled, with“SL”
remaining on the display, until you enter another
key sequence such as: [S1] [0] through [S1] [6],
[SPEED] or [AREA].
Set Testing Area M10-94400-1
5-44
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