Pr
o
Minent
®
Page 75
pH
Restricted Operating Menu / Layout (Continuation)
Error
Messages
Error messages and information are indicated on the bottom line in the permanent display 1.
Errors to be acknowledged (acknowledgement switches off the alarm relay) are indicated by
the „ “. Errors/notes which still apply after acknowledgement are indicated alternately. During
correction variable processing (temperature for correction of pH-value), the value is indicated in
the same line as the error/note. Faults which are rectifi ed of their own accord due to changed
operating situations are removed from the permanent display without the need for acknowledge-
ment.
control
current regulat.
value:
-30 %
with dead zone
control
current regulat.
value:
-30 %
manual
D1C2-010-GB
Control with dead zone
For normal control
PID control
Proportional control
setpoint
7.20 pH
ctrl. parameter
Ti =
Td =
xp =
ctrl. parameter
xp =
10 %
control
settings ?
control pH
positive alkali
regulated value:
negative acid
manual dosing
control
current regulat.
value:
-30 %
normal
-15 %
regulated range
general setting
information
ident-code: D1CA
software version
DxPxxxxxxxxxx
D1C-A1 FW-5.00
alarm relay
access c.:
=
=
operating menu:
active
5000
english
For manual control
setpoint 2 upper
setpoint 1 lower
7.20 pH
7.00 pH
Setting in
complete
operating
menu
Only with control
reduced
0 s
10 %
0 s
D1C2-011-GB
Permanent display 1
Temperature indication only with correcting value
temp.:
33.2
°
C
pH
7.20
mea. val.
fd. fwd.:
reg. val.:
7.20 pH
70 %
-59 %
Positive values of setting variable:
Negative values of setting variable:
Alkali
Acid
Permanent display 2
only with control
(w = setpoint)
w:
7.00 pH
BA_DR_002_02_09_GB_Cooling.indd 75
BA_DR_002_02_09_GB_Cooling.indd 75
24.02.2009 11:56:08 Uhr
24.02.2009 11:56:08 Uhr