Mecmesin Vortex-dV Manual page 29

Setting Setting Options Options
Test Sub-
Select the test sub-type (Options are listed above).
Type
Limit
Limit and Cyclic Tests Only - Enter the target torque for the test. Limit and Cyclic Tests Only -
Torque
Return
Cyclic Tests Only - Cyclic Tests Only - Enter the start torque for the test
Torque
Cycle Count Cyclic Tests Only - Cyclic Tests Only - Enter the number of cycles to be completed
Move to Break Test Only – Move to Break Test Only – Enter the percentage drop from current maximum load recorded, to
activate the break detection.
Break
Threshold
Example: Current load maximum reading is 3 N.m, with 20 % setting the torque load drop must Example:
reach 2.4 N.m before break detection activates.
Move to Break Test Only - Move to Break Test Only - Enter the minimum break threshold. Value of torque load that the test
load reading must rise above for a break condition to be detected.
Min Break Min Break
Threshold Threshold AFTI must be connected and ON to set this parameter AFTI must be connected and ON to set this parameter
1 % of torque cell capacity is the lowest setting. 1 % of torque cell capacity is the lowest setting.
Examples Examples
Torque Limit Torque Limit
Speed: 5 rev/min Speed:
Start Direction: Anticlockwise Start Direction:
Test Sub-Type: Torque Limit Test Sub-Type:
Limit Torque: 5 N.m Limit Torque:
The stand moves anticlockwise at 5 rev/min until the applied torque is 5 N.m from tared zero, once the limit
torque is reached the test stops.
Torque Cycle Torque Cycle
Clockwise Speed: 10 rev/min Clockwise Speed:
Anticlockwise Speed: 20 rev/min Anticlockwise Speed:
Start Direction: Clockwise Start Direction:
Test Sub-Type: Torque Cycle Test Sub-Type:
Limit Torque: 2 N.m Limit Torque:
Return Torque: 0.5 N.m Return Torque:
Cycle Count: 10 Cycle Count:
The stand moves clockwise at 10 rev/min until the applied torque is 2 N.m from tared zero. Once the limit torque
is reached the stand moves anticlockwise at 20 rev/min until a torque of 0.5 N.m is reached, this cycle repeats 10
times at which point the test stops.
Break Break
Torque Cell Fitted: 3 N.m Torque Cell Fitted:
Clockwise Speed: 2 rev/min Clockwise Speed:
Anticlockwise Speed: 30 rev/min Anticlockwise Speed:
Start Direction: Clockwise Start Direction:
Test Sub-Type: Break Test Sub-Type:
Break Threshold: 10 % Break Threshold:
Min Break Threshold: 0.6 N.m Min Break Threshold:
The stand moves clockwise at 2 rev/min until a break condition is detected. The drop in torque load must be at
least 0.3 N.m (10 % of 3 N.m) and occur above 0.6 N.m (20 % of 3 N.m), for the break detection to activate.
7.3.3
Data Capture within VectorPro™
To use AFTI Control/Torque Control tests in conjunction with VectorPro first program the test settings using the
stand's front panel and/or AFTI and then create a VectorPro test using the AFTI/Torque control operation,
ensuring the speed and test orientation match your configuration.
Please note the speed and test direction use the settings configured within VectorPro, while other test settings
are loaded from the front panel. For more information please refer to the
955). 955
At the end of a test, or in a stopped condition, you may need to move the crosshead to clear a sample, or the
drive spindle to remove a torque.
Never restart a test from a stopped condition with a residual torque, and always Reset the gauge before a
subsequent test.
VectorPro user manual, (part no. 431- part no. 431-
29