Control Parameter [Xp] - ProMinent DULCOMETER Assembly And Operating Instructions Manual

[Control]
Setting the
10.4

Control parameter [xp]

The xp value is the controller amplification factor. The xp value relates to the measuring
range end of a controller and is entered as an absolute value. For pH for example
xp=1.5.
For measured variables such as chlorine, the sensor measuring range is selected. The
sensor measuring range corresponds to the measuring range end.
For pH, the measuring range end is 15.45. Here the default xp value is 1.54 (corresponds
to ± 1.54 pH). The xp value states that for a deviation of ± 1.54 from the setpoint, the
'forcefully' the con‐
control variable equals ± 100%. The smaller the xp value, the more
trol reacts, however the control also moves slightly into the over-control range.
Setpoint
A1473
Fig. 79: The smaller the xp value, the more "forcefully" the control reacts.
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