ProMinent DULCOMETER D1C Type D, Operating Instructions Manual, Page: 24 / 28

24
D1C2-cond.-026-GB
10 %
Ti =
Td =
xp =
0 s
10 %
xp =
10 %
30 %
15 %
1000
µ
S/cm
1500 µ S/cm
1000 µ S/cm
additional load:
regulated range
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 process with time constants greater than 30 s !
Control with dead zone
For normal control
PID control
Proportional control
setpoint
setpoint 2 upper ctrl. parameter
setpoint 1 lower
ctrl. parameter
control
settings ? control
regulated value:
manual dosing
control
current regulat.
value:
regulated range
normal
➞➞ positive cond
negative cond
Increase conductivity
Reduce conductivity Positive values of setting variable:
Negative values of setting variable:
10 s
Control manual
Control
Possible values
Initial value Increment Lower value Upper value Remarks
Control normal normal When controlling with dead
with dead zone zone, the regulated value is
manual not used for measured values
within the dead zone
Setpoint setting 1000 mS/cm 1 mS/cm -100 mS/cm 2100 mS/cm Measuring range 2000 mS/cm*
100 mS/cm 0.1 mS/cm -10 mS/cm 210 mS/cm Measuring range 200 mS/cm
10 mS/cm 0.01 mS/cm -1 mS/cm 21 mS/cm Measuring range 20 mS/cm
1000
µ
S/cm 1
µ
S/cm -100
µ
S/cm 2100
µ
S/cm Measuring range 2000
µ
S/cm
100 µ S/cm 0.1 µ S/cm -10 µ S/cm 210 µ S/cm Measuring range 200 µ S/cm
Setpoint 2 ≥ setpoint 1
Control parameter xp 10 % 1 % 1 % 500 % xp referred to measuring range
Control parameter Ti off 1 s 1 s 9999 s Function off = 0 s
Control parameter Td off 1 s 1 s 2500 s Function off = 0 s
Additional basic load 0 % 1 % -100 % +100 %
Manual metering 0 % 1 % -100 % +100 %
Abbreviations for control variables:
xp: 100 %/Kp (inverse proportional coefficient)
T
i
: Integration time of I-controller (s)
T
d
: Differential time of D-controller (s)
Complete Operating Menu / Description
BA_DM_138_09_06_GB.p65 21.09.2006, 11:22 Uhr 24