Measurement procedure
80 A0293_06_E00_03 HBM: public MP85A
Envelope curve
The envelope curve continuously monitors the process in max. 4 adjustable
ranges. The process must enter the envelope curve on one side and exit on
the other. The tolerance width of the envelope curve can be selected as
desired and can therefore be adapted to process requirements. Evaluation
takes place at the end of the process.
Important
In envelope curve mode, only processes without returning x-values can be
monitored correctly.
y
x
Fig. 8.14 Envelope curve
Tolerance band
The tolerance band covers the complete process. In OK processes, the first to
last measurement points must lie within the tolerance band (in contrast to the
envelope curve, which must be entered and exited). Evaluation takes place at
the end of the process.
Important
In tolerance band mode, only processes without returning x-values can be
monitored correctly.
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