Strip Chart Recorder
Description
The optional Instron Strip Chart Recorder produces a
plot of an input signal, usually load or strain, against
time. The chart itself, driven by an internally-timed step-
ping motor, moves past a recording pen, which, in turn,
is driven by the input signal. Since crosshead speed can
be converted directly to time, the resulting plot is thus a
plot of load or strain versus crosshead speed.
The recorder has a bi-directional chart with selectable speeds
in the internal time drive mode. The range of speeds is 1.0 to
100 cm/min (0.05 to 50 in/min), forward and reverse.
The Recorder is available with one or two input chan-
nels (and recording pens). If it has one input channel, the
input to that channel will always be Load. If the recorder
has two input channels, Load will be applied to Channel
1, and Strain to Channel 2.
The input from the Series 4400 system is a -10 to +10
Vd.c. load or strain signal, which is automatically
ranged to full scale by the testing system. Switch-select-
able ranges and a variable gain control on the Recorder
front panel can be used for range expansion.
The Series 4400 system provides an automatic chart stop
signal at a crosshead “return” command. Pipping of the
pen (event marker) is possible through a PIP contact on
the recorder connector.
The recorder is supplied with 250 mm wide, metric-
scaled paper. The paper can be either fan-fold or roll pa-
per. Paper scaled in U.S. Customary units is available
System Options
Strip Chart Recorder
6-3
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