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AC/DC Strain Conditioner
AC/DC Strain Conditioner
The AC/DC Strain Conditioner Option is an add-on
printed circuit board that allows the use of extensome-
ters, such as the Instron Video Extensometer, the High
Resolution Digital (HRD) Extensometer, and other
strain transducers that use d.c. excitation and signal proc-
essing. This conditioner can also be used as a normal
a.c. conditioner, accepting inputs from Instron's normal
line of extensometers.
In order for the AC/DC Strain Conditioner to operate
properly in the Model 4400 Testing System, the Model
4400 Console must have an updated main printed circuit
board, which has the Instron Part Number A570-66. If
the console has an updated board, there should be a
small sticker on the outside of the console cover with
this part number on it.
The AC/DC Strain Conditioner also requires an updated
version of the system firmware. The firmware must have
a date of March, 1994 or later. To determine if your sys-
tem contains this or a later version, press the key se-
quence [S1] [9] [ENTER], and a date will appear in the
main display. If this key sequence does not work, your
system contains an older version of the firmware, and
the AC/DC Strain Conditioner will not work. You can
upgrade your firmware by ordering Catalog Number
3750-064, which will ensure that you receive the latest
version of the Model 4400 Firmware release.
6-30
M10-94400-1
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