700 P electronics module
Description
3.
21
Ty
Control direction
Example:
Xp
Xsh
Running time of the positioner
Unit
Seconds (s)
Description
The parameter Ty only applies to positioners.
Ty is the time which the positioner requires to
adjust from 0 % to 100 %.
Setting range
The parameter Ty can be set between 10 and
180 s.
Control direction
Unit
Acid / Alkali for pH
Raising/lowering for conductivity
Description
Defines which medium is used to perform the
correction.
pH
for control direction
"Acid"
Lower pH value when
adding acid
Conductivity
for control direction
"Raise"
Addition of salt
Proportional factor
Unit
Percentage (%) with factor
Description
The control amplification is determined by
means of the proportional factor.
The lower the proportional factor Xp is
selected in %, the greater the deviation from
the setpoint is amplified, and the more quickly
the controller attempts to control the deviation
from the setpoint.
The control amplification factor is calculated
using the following equation:
Factor = (1/Xp) x 100 %
Setting range
The parameter Xp can be set from 1 % (factor
100) to 1000 % (factor 0.1).
Neutral zone
Unit
Percentage (%)
Description
The parameter Xsh only applies to 3-point
controllers.
There is no control output within the neutral
zone.
Setting range
The parameter Xsh can be set from 1 to 5 %
(based on the measuring range).
Содержание WALLACE & TIERNAN 700 P
Страница 1: ...WALLACE TIERNAN ELECTRONICS MODULE 700 P Version 1 31 and later INSTRUCTION MANUAL...
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