STwrench User Guide Pset
9836 4134 01 Edition 2.9 121 (326)
Activated together with the 3 rows of yellow LEDs.
Activated together with the 3 rows of yellow LEDs, and remains active until the
torque applied to the wrench is released.
6.7.1.8 PVT compensate with snug
This strategy is useful for joints with prevailing torque, in particular when the prevailing torque level is
higher than the final target.
 Cycle Start: Defines the point where to start the torque measurement.
 Start Final Angle: Threshold from which starting the angle measurement.
 Delay monitoring: Parameter for filtering out a certain angle in the beginning of a tightening where
monitoring for a certain 'gradient' is not interesting (useful when the gradient is high at cycle start).
 PVT distance: Defines the angle backwards from the snug point. If the tightening process does not
provide enough rotation to go back of the angle specified, the software algorithm considers a shorter
distance obtained going back from the snug point to the first point after the Delay monitoring.
 PVT interval: Defines the angle interval during which the compensate value is calculated. If the
tightening process does not provide enough rotation to complete the PVT interval, the software
algorithm considers a shorter interval according to the data available.
Cycle start
Start Final Angle
monitoring
maximum
monitoring
minimum
Final target
Final target
+
PVT compensate
value
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