ProMinent DULCOMETER D1C A D Series, Operating Instructions Manual, Page: 10 / 24

10
Restricted Operating Menu / Description
Limits
Possible values
Initial value Increment Lower value Upper value Remarks
Type of limit trans- upper Limit transgression
gression Limit 1: lower lower when exceeding or
Limit 2: upper off* dropping below value
*only with limit relay
Limit value Limit 1: 500 mV 1 mV -2000 mV 2000 mV
Limit 2: 1000 mV 1 mV -2000 mV 2000 mV
Control
limit 1
100 mV
lower
limit 2 upper
900 mV
D1C2-014-GB
Access to all setting menus can be blocked with an access code !
limits
setting ?
control
current regulat.
value: 30 %
control
current regulat.
value: 30 %
control
current regulat.
value: 30 %
D1C2-015-Redox-GB
Access to all setting menus can be blocked with an access code !
Only with control
Note: The controlled variable is recalculated every second. Only
suitable for processes with time constants greater than 30 s !
Control with dead zone
For normal control
PID control
Proportional control
Positive values of setting variable:
Negative values of setting variable: Oxidant agent
Reducing agent
setpoint
750 mV
setpoint 2 upper ctrl. parameter
Ti =
Td =
xp =
0 s
750 mV
setpoint 1 lower
650 mV
10 %
ctrl. parameter
xp =
10 %
control
settings ?
control
positive oxide
regulated value:
negative reduc
manual dosing
15 %
regulated range
manual
with dead zone
normal
or
or
Setting in
complete
operating
menu
0 s
For manual control
BA_DM_183_10_10_EN.p65 28.10.2010, 11:44 Uhr 10