MTS 709 Alignment System - Manual (Page 121)

Data Acquisition
709 Alignment System Validate 121
Data acquisition with dynamic load
If you are using the 793 Station Manager Function Generator, make sure the
active control mode is force when you start the Function Generator to
acquire data with dynamic load.
If you are using the FlexTest Station Manager, the Function Generator will change
the control mode to displacement when the pod is enabled. This can damage the
specimen when the Function Generator is put in a Run condition. MTS
recommends using Basic TestWare, which does not change the settings when the
pod is enabled.
See “Using the 793 Station Manager Function Generator” on page 154 for
additional information.
These fields are used in conjunction with the test controller’s function generator.
• Sample Points specifies the number of points of each data set to sample.
• Function Cycles is the number of cycles you plan to run with the test
controller’s function generator, which does not affect data acquisition.
• Function Frequency is the setting you should use for the test controller’s
function generator to yield the number of cycles specified for the sample
points specified.
• Ramp Rate is the rate needed to reach the levels specified on the Specimen
tab at the function frequency.
CAUTION