© Triton Electronics Ltd 2022
Doc. AMV35003_1.doc v1.04
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2.4.2.2
Use BS EN Process Efficiency
Adds the process efficiency to the overall heat input calculation
2.4.2.3
Arc Heat Input
If turned on a weld length is entered at the end of an arc so heat input can be calculated, this is
aimed at automated applications.
2.4.2.4
Use Segment Control
If you are using the strip welding technique you can use segment control to calculate heat input as
the pipe is welded. At the completion of an arc you can complete a section, enter a weld length so
the heat input is calculated. Once the last segment is welded all segments are included in the pass
data.
2.4.2.5
Resistance
Practically it is not possible to monitor the welding voltage across the welding arc. This allows for an
adjustment to be made if the resistance of the power cables is known.
2.4.3
Trigger
2.4.3.1
Trigger values
Once the voltage and current values are ‘seen’ by the AMV it considers a welding arc is on
. If either
drops below the value the arc is considered off. One or both can be set to zero (if both are set to
zero the AMV will always see a welding arc
–
this condition is to be avoided)
Slope up and Slope down times can be set
–
these are removed from the arc time and heat input
calculations. If the welding arc is shorter than both the slope up plus slope down value an error is
detected, and the arc discarded.
Min arc time is the shortest arc time needed for an arc to be considered “real”. Particularly for
manual metal arc welding if the electrode is struck to just prove there is contact or “warm” the
electrode this is ignored if below the min arc time.