Instron AVE2, Operator'S Manual

Page: 77 / 88

77 Product Support: www.instron.com
Chapter 9
Run tests
•
Using Bluehill® Universal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
•
Using Bluehill® 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
•
Using WaveMatrix™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
•
Systems not using Bluehill® or WaveMatrix™. . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Warning
Set appropriate mechanical limits on the load frame before starting any tests. If you
are using an 8800 or ElectroPuls system, you set these limits via the Console software.
If the extensometer loses track of the marks on the specimen during a test,
unexpected crosshead or actuator movement can occur. It is very important that
you limit any such movement.
The AVE2 and SVE2 can be used on a wide range of testing machines. Newer machines,
in combination with Bluehill
®
or WaveMatrix
TM
software, are designed to handle the loss
of strain signals due to loss of marks in a controlled manner. If you are not using
Bluehill
®
or WaveMatrix
TM
software or are using an older testing machine, these
systems may not be present. It is therefore imperative that you set these limits.
In some cases, especially if you are using the 6mm or 9mm lens, some areas of the
image are shaded yellow. These areas have reduced accuracy compared to the stated
specification. Make sure that the dots on the specimen are not in one of these shaded
areas when you start the test. It is acceptable, however, for the dots to move into one of
these shaded areas during the test.
Important - before using the video extensometer to measure strain on an 8800 or Elec-
troPuls testing system with an 8800T or 8800D controller:
•
use the Instron Video Extensometer application to measure the gauge length
•
select Measure or , depending on the version of the application
•
In 8800/ElectroPuls console, enter the measured gauge length on the [Channel
Name] > Calibration page.