Instron AVE2 - Calibrate in Bluehill; Software

69
Fully integrated testing systems
Product Support: www.instron.com
If the configuration has been successful, the icon for Strain 14 disappears.
Calibrate in Bluehill
®
3 software
You should calibrate the extensometer upon initial start up and also after you change
anything in the setup, such as changing a lens or changing the position of the AVE2.
This procedure requires a calibration bar. If you are using a 6mm lens, then two
calibration bars are required.
1. Start the video extensometer by pressing the power button on the front. The light bar
illuminates.
2. If not already open, start Bluehill
®
and select in the console to open the video
extensometer dialog.
3. Position the crosshead and the video extensometer as required for the specimens
that will be tested.
4. For all lenses except the 6mm lens:
a Install the calibration bar in the upper grip only, making sure that the matrix of
dots faces towards the extensometer.
b If necessary, remove the lower grip to avoid damage to the calibration bar.
c Move the crosshead so that the image of the calibration bar fills the field of view.
5. If you are using the 6mm lens, you must use two calibration bars to accommodate
the large field of view, as follows:
a Install one calibration bar in the upper grip, making sure that the matrix of dots
faces towards the extensometer.
b Install one calibration bar in the lower grip, making sure that the matrix of dots
faces towards the extensometer.
c Move the crosshead so that the upper bar is near the top of the field of view and
the bottom bar is near the bottom of the field of view. Make sure, however, that
the bottom bar is at least 50mm above the bottom of the field of view to optimize
accuracy.
6. Select Calibrate... to open the calibration dialog.
7. Remove the red lens cover (AVE2 only; there is no lens cover on the SVE2) by gently
pulling it away from the lens.
8. Follow the instructions in the calibration dialog to select and focus the lens.
a Select the lens that you have installed from the drop-down list.
b Focus of the lens until the check mark appears, then lock the thumb screw.
9. Replace the red lens cover (AVE2 only).