Instron AVE2, Руководство оператора

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Non-integrated testing systems
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If you are using the 6mm lens, draw the box so that it includes both calibration bars.
12. Select Calibrate.
13. When calibration is complete, the calibration status updates and a yellow box
appears indicating the region in the field of view that generates the highest accuracy.
You should ensure that the dots defining the gauge length on each specimen are
within this yellow box at the start of each test.
14. Select OK to accept the calibration and close the calibration dialog.
15. Remove the calibration bar from the grips.
16. If you are using the video extensometer on an 8800 or ElectroPuls testing system
with an 8800T or 8800D controller, you now need to manually calibrate the exten-
someter in 8800/ElectroPuls console. As part of the manual calibration, set the
transducer type to Strain (Calibration wizard > Transducer details screen). For more
details refer to “Using the AVE2 with an 8800T or 8800D Controller” in the Console
online help.
The strain transducers for the video extensometer are now calibrated.
Calibrate using touch-enabled user interface
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 it is not already open, launch the Instron Video Extensometer application. The video
extensometer dialog displays.
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.