4.4.4 Joy Stick Control The joy stick should be used to position the sample and load string prior to the test run. The crosshead velocity will ramp upward when the joy stick is continuously pressed. Pressing the top portion of the joy stick causes the crosshead to move upward (tensile direction). Pressing the bottom portion of the joy stick causes the crosshead to move downward (compression direction).
NOTE Never press the joy stick during an active test run.
NOTE The joy stick should be used to manual position the sample and load string at a home position.
WARNING Attempting to stop the crosshead movement during a rapid velocity will lead to a load cell overload condition. This can permanently damage the load cell and associated fixture. Use extreme caution when using high velocities.
Joy Stick Located next to Start/Stop push button
Shows pointer to the left (default). This is the SLOW speed mode. Pressing the jog switch will move crosshead slowly.
Shows pointer to the right (NORMAL). Pressing the jog switch will move crosshead up to the maximum speed velocity setting. If you press and hold jog switch, the velocity will increase.
Joy Stick Change manual crosshead velocity
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