Minimum after breakaway

This strategy verifies the minimum torque within a user-defined angular range, constrained between Residual Angle Threshold 1 and Residual Angle Threshold 2. The minimum torque must be between the user-defined torque limits, and both Residual Angle Thresholds must be reached for detection.

Parameter	Description
Inspection Name	Name of the inspection.
Torque correction coefficient	When extensions are used, the wrench measurement must be compensated to show a more accurate torque value. To calculate the correction coefficient, please refer to How to calculate the Torque Correction Coefficient. When extensions are not used, Torque correction coefficient = 1.
Angle correction coefficient	When extensions cause additional wrench bending, the wrench angle measurement must be compensated to show a more accurate angle value. To calculate the correction value, please refer to How to Calculate the Angle Correction. When extensions are not used, Angle correction coefficient = 0.
Cycle start	Torque value from which the test operation starts. The Cycle start must be ≤ Final angle monitoring torque value, and must be ≥ smartHEAD Min load value. If Cycle start = 0, its value is automatically set to the smartHEAD Min load value.
Minimum torque limit	Minimum torque value that must be reached within the Target angle value in order to get an OK result.
Maximum torque limit	Upper torque limit value.
Change screw	If the torque applied reaches this limit, the message Change screw is shown on the wrench display. Must be > Maximum limit torque. The Change screw must be equal or higher than the Maximum limit torque.
Target torque	Torque target value.
Torque tolerance	Torque tolerance that defines the maximum torque and the minimum torque according to the Target torque previously specified. Value is expressed in percentage (%).
Final angle monitoring torque	Torque value from which the angle measurement starts (usually set to 50% of the Target torque). If Final angle monitoring torque = 0, its value is automatically set to the Cycle start value.
Control mode	Method to define the torque limits from the following options: Min/Max: the torque lower and upper limits are the values entered for the parameters Minimum torque and Maximum torque. Target/Tolerance: the torque lower and upper limits are calculated according to the values of the parameters Target torque and Torque tolerance.
Residual angle threshold 1	Maximum angle value (measured from the Final angle monitoring torque) for the residual torque when the residual torque is lower than the breakaway point.
Residual angle threshold 2	Maximum angle value (measured from the Final angle monitoring torque) for the residual torque when the residual torque is lower than the breakaway point. The Residual angle threshold 2 must be higher than the Residual angle threshold 1 .
Number of sample	Number of tests to run inside the inspection. Maximum value: 1000. If Number of sample = 0, the number of tests is infinite. If Number of sample > 1, batch result OK only if all tests are OK.

Curve progression representing minimum after breakaway

Results:

If the Minimum torque is between the torque range and both thresholds are reached, the result is OK.
If the torque trace is monotonic or if the second angle threshold is not reached, the result is not OK.

T₀	Final angle monitoring torque	T₁	Minimum torque
a₁	Residual Angle Threshold 1	a₂	Residual Angle Threshold 2
B	Breakaway