12. Channel Allocation
The machine is capable of controlling loading rate by using: 1)
displacement, or 2) force control. The load is recorded by the
load cell. The recorded displacement can be measured using
an encoder attached to the ram or an external LVDT, which is
independent of the control method (recommended).
1. Select the appropriate control mode (displacement or
force) in the test parameters menus.
a. Force – select (kN/sec) in the Test Parameters.
b. Displacement – select (mm/min) in the Test
Parameters.
2. Select the appropriate data sources to acquire the
displacement and load measurements. The
displacement in the data file can be either for the ram
or LVDT displacement.
a. Press on the main test screen to select the
channel allocation.
b. Press on the next screen to modify the
channel allocation.
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