ProMinent Dulcometer D1C Operating Instructions Manual
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Part No. 987926 ProMinent Dosiertechnik GmbH · D-69123 Heidelberg · Germany BA DM 085 08/01 GB
Operating Instructions
DULCOMETER® D1C
Part 2: Adjustment and Operation,
Measured Variable Conductivity
ProMinent
®
D1C2-Leit.-001-GB
Please completely read through operating instructions! · Do not discard!
The warranty shall be invalidated by damage caused by operating errors!
2
Please enter the identity code of your device here!
1 Device Identification / Identy Code
D1C A L 0 E
D1C A DULCOMETER® Controller Series D1C / Version A
Type of mounting
D Control panel installation 96 x 96 mm
W Wall mounting
Operating voltage
0 230 V 50/60 Hz
1 115 V 50/60 Hz
2 200 V 50/60 Hz (only with control panel installation)
3 100 V 50/60 Hz (only with control panel installation)
4 24 V AC/DC
Measured variable
L Conductivity
Connection of measured variable
1 Terminal, standard signal 0/4-20 mA
3 Terminal, conductive conductivity
Correction variable
0 None
2 Temperature via terminal (PT 100)
3 Temperature via standard signal 0/4-20 mA
4 Manual temperature entry
Feed forward control
0 None
1 As standard signal 0/4-20 mA
2 As frequency 0-500 Hz
3 As frequency 0-10 Hz
Control input
0 None
1 Pause
Signal output
0 None
1 Standard signal 0/4-20 mA measured value
2 Standard signal 0/4-20 mA control variable
3 Standard signal 0/4-20 mA correction variable
4 2 standard signal 0/4-20 mA output, free programmable
Power control
A Alarm relay
G Alarm and 2 limit value relays
M Alarm and 2 solenoid value relays
R Alarm relay and servomotor with feedback
Pump control
0 None
2 Two pumps
Control characteristic
0 None
1 Proportional control
2 PID control
Log output
0 None
Language
DGerman
E English
F French
I Italien
N Dutch
S Spanish
P Polish
ASwedish
B Portuguese
U Hungarian
3
2 Contents / General User Information
Page
Device Identification / Identity Code ............................................................................................................. 2
General User Information ............................................................................................................................... 3
Device Overview / Controls ........................................................................................................................... 4
Functional Description ................................................................................................................................... 5
Display Symbols ............................................................................................................................................. 6
Operation ........................................................................................................................................................ 7
Restricted Operating Menu ............................................................................................................................ 8
Overview ................................................................................................................................................ 8
Layout .................................................................................................................................................... 9
Description .......................................................................................................................................... 10
Complete Operating Menu ........................................................................................................................... 14
Overview .............................................................................................................................................. 14
Description .......................................................................................................................................... 15
EC Declaration of Conformity ...................................................................................................................... 27
Troubleshooting ........................................................................................................................................... 28
General User Information
These operating instructions describe the technical data and function of the series DULCOMETER® D1C
controller, provide detailed safety information and are divided into clear steps. The activities to be carried
out are identified by bold bullets (•).
IMPORTANT:
Please observe the parts of these operating instructions applicable to your particular
version! This is indicated in the Section “Device Identification / Identity Code”!
IMPORTANT:
Correct measuring and dosing is only possible in the case of impeccable operation of the
probe. The probe has to be calibrated / checked regularly!
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Graphic display
Push-button
"Start/stop"
Push-button
"Enter"
Push-button
"Up"
Push-button
"Change display"
Push-button
"Down"
Push-button
"Branch back"
Display field
Measured variable
Conductivity
CHANGE DISPLAY menu button
To change over within a menu level
and to change from one variable to
another within a menu point.
START/STOP menu button
Start/stop of control and metering
function.
ENTER menu button
To accept, confirm or save a
displayed value or status. For alarm
acknowledgement.
UP menu button
To increase a displayed numerical
value and to change variables
(flashing display)
BRANCH BACK menu button
Back to permanent display or to start
of relevant setting menu.
DOWN menu button
To decrease a displayed numerical
value and to change variables
(flashing display).
3 Device Overview / Controls
D1C2-Leit.-002-GB
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4 Functional Description
NOTE
Please refer to the description of the complete operating menu in Section 8 for a detailed
description of the individual characteristics of the D1C controller!
4.1 Operating Menu
The D1C controller permits settings to be made in two different menus. All values are preset and can be
changed in the complete operating menu.
The controller is delivered with a restricted operating menu so that the D1C controller can be used
effectively in many applications from the very onset. If adaptations prove to be necessary, all relevant
parameters can then be accessed by switching over to the complete operating menu.
4.2 Access Code
Access to the setting menu can be prevented by setting up an access code. The D1C controller is supplied
with the access code 5000 which permits free access to the setting menu. The calibration menu remains
freely accessible even when access to the setting menu is blocked by the code.
4.3 Control
The D1C can operate as a proportional controller or as a PID controller - dependent on the device version
(see identity code) and the setting.
The controlled variable is recalculated every second. Control procedures which require rapid correction of
setpoint deviations (less than approx. 30 seconds) cannot be processed with this controller. The cycle
times must be taken into consideration when activating solenoid valves (pulse length) in the same way as
their running times when activating servomotors (3-point).
Via the control input pause, the control function (selection of controlled variable) can be switched off. The
calculation of the controlled variable starts again after cessation of „pause“.
4.4 Feed Forward Control
The D1C controller can process a signal of a feed forward control. Depending on the device version (see
identity code) and the setting, this signal can be obtained in any form of a 0–20 mA or 4–20 mA signal or as
a digital contact signal with the maximum frequencies 10 Hz or 500 Hz.
During start-up, the zero point has to be checked. The multiplicative feed forward control is not designed
for switching off permanently the actuating variable (signal ≈ 0).
This signal can be used, for example, for flow-proportional metering (multiplicative effect) or feed
forward-dependent basic load metering (additive effect). The result of control variable calculation from the
proportional or PID control is multiplied by or added to the feed forward signal. A multiplicative feed forward
variable at the level of the set rated value carries over the calculated control variable unchanged into the
controlled variable:
Controlled variable = Feed forward variable/rated value x calculated control variable
An additive feed forward variable at the level of the rated value results in maximum controlled variable:
Controlled variable (max. 100 %) = Feed forward variable/rated value x max. controlled variable +
calculated control variable
4.5 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 symbol „ “. Errors/
notes which still apply after acknowledgement are indicated alternately. Faults which are rectified of their
own accord due to changed operating situations are removed from the permanent display without the need
for acknowledgement.
6
The display of the D1C controller uses the following symbols:
Description Comment Symbol
Limit value transgression Symbol
Relay 1, upper left
Symbol
Relay 1 lower left
Symbol
Relay 2 upper right
Symbol
Relay 2 lower right
Metering pump 1 (Increase conductivity) Symbol
Control OFF left
Symbol
Control ON left
Metering pump 2 (Reduce conductivity) Symbol
Control OFF right
Symbol
Control ON right
Solenoid valve 1 (Increase conductivity) Symbol
Control OFF left
Symbol
Control ON left
Solenoid valve 2 (Reduce conductivity) Symbol
Control OFF right
Symbol
Control ON right
Servomotor
Control, open relay
Control, close relay
Without control
Thickness of bar
Position feedback increases from left to right
during opening
Stop button pressed
Manual metering
Fault
5 Display Symbols
7
D1C2-Leit.-007-GB
Access code, correct
Parameter
setting
Permanent
display 1
Permanent
display 2
Various
Access code
Setting menus
The various menus are selected with
the CHANGE button
The menu is started with
the ENTER button
BRANCH BACK to permanent display
or to relevant setting menu
NOTE
Access to the setting menus can be barred with the access code!
The number and scope of setting menus is dependent on the device version!
If the access code is selected correctly in a setting menu, then the following setting menus are also
accessible!
If within a period of 10 minutes no button is pushed, the unit automatically branches back from the
calibrating menu or a setting menu to the permanent display 1.
6 Operation
CHANGE from selection to selection
Change numbers or
settings of selection
Variables flash
ENTER and save setting,
continue to next menu
BRANCH BACK without
saving setting
BRANCH BACK to
start of setting
Text 1
Text 2
Selection 1
Selection 2
Text 1
Text 2
Selection 1
Selection 2
D1C2-Leit.-008-GB
8
7 Restricted Operating Menu / Overview
The restricted operating menu permits simple operation of the most important parameters. The following
overview shows the settings which can be selected:
D1C2-Leit.-009-GB
Permanent display 1
Only with
solenoid valve relays
Only with control
Number and scope of setting menus
is dependent on the device
Access to setting menus can
be blocked with access code
µS/cm
100
calibration
conductivity ?
Only with connection on standard signal terminal
meas. parameter
setting ?
Only with connection on conductive conductivity terminal
relay
setting ?
control
setting ?
general setting
information
limits
setting ?
100 µS/cm
w: 1000 µS/cm
70 %
59 %
mea val.
Permanent display 2
only with control
(w=setpoint)
fd. fwd.:
reg. val.:
9
D1C2-Leit.-010-GB
Permanent display 1
100 µS/cm
w: 1000 µS/cm
70 %
59 %
µS/cm
100
SV1 cond
SV2 cond
1000 µS/cm
1000 s
Ti =
Td =
xp =
0 s
10 %
xp =
10 %
30 %
15 %
DxLxxxxxxxxxx
D1C-xx FW-xx.x
=
=
5000
Increase conductivity
Reduce conductivity
➞
➞
1000 µS/cm
1500 µS/cm
➞
➞
1500 µS/cm
1000 µS/cm
mea val.
Permanent display 2
only with control
(w=setpoint)
fd. fwd.:
reg. val.:
Positive values of setting variable:
Negative values of setting variable:
relay
setting ?
relay adjustment
relay1:
relay2:
control
Solenoid valves: SV1
SV2
limit 1
lower
limit 2
upper
limits
setting ?
control
settings ?
Only with control
control
positive cond
regulated value:
negative cond
control
current regulat.
value:
normal
30 %
control
current regulat.
value:
with dead zone
30 %
control
current regulat.
value:
manual
Control with dead zone
For normal control
PID control
Proportional control
setpoint
setpoint 2 upper
ctrl. parameter
setpoint 1 lower
ctrl. parameter
manual dosing
regulated range
general setting
information
ident-code: D1CA
software version
alarm relay access c.:
operating menu:
active
english
restricted
Only with connection on standard signal terminal
Only with connection on conductive conductivity terminal
1500 µS/cm
mr = meas. range
cc = cellconstant.
2000 µS/cm
cc :
1.000/cm
mr :
1006 µS/cm 25.0 °C
calibration
conductivity ?
calibration
conductivity:
meas. parameter
setting ?
Restricted Operating Menu / Layout
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