ProMinent DULCOMETER D1C Type D, DULCOMETER D1C Type W Operating Instructions Manual

Operating Instructions

DULCOMETER® D1C

Part 2: Adjustment and Operation
Measured variable inductive conductivity

®

ProMinent

D1C2-cond.-001-D

Conductivity

100

DULCOMETER

STOP

START

µ

S/cm

Conductivity

100

DULCOMETER

STOP

START

Type WType D

µs/cm

D1C A

___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___

Please enter the identity code of your device here.

Please completely read through the operating instructions! · Do not discard!

The warranty shall be invalidated by damage caused by operating errors!

Part No. 986954 ProMinent Dosiertechnik GmbH · 69123 Heidelberg · Germany BA DM 138 09/06 GB

1 Device Identification / Identity Code

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

6 Inductive terminal conductivity measurement cells (0-20/200/2000 µS/cm; 0-20/200/2000 mS/cm)

Correction variable

0 None
2 Temperature via terminal (Pt100)
4 Manual temperature input

Feed forward control

0 None
4 Flow as 0/4-20 mA standard signal and parameter record switching
5 Parameter record switching

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
42 standard signal 0/4-20 mA outputs, free programmable

Power control

G Alarm and 2 limit value relays
M Alarm and 2 solenoid valve relays
R Alarm relay and servomotor with feedback

0 None
2 Two pumps

Pump control

Control characteristic

0 None
1 Proportional control
2 PID control

Log output

0 None

Language

D German
E English
F French

I Italian
N Dutch
S Spanish
PPolish
ASwedish
B Portuguese
H Hungarian

D1C A

Please enter the identity code of your device here!

2

2 General User Information

Page

1 Device Identification / Identity Code .................................................................................................... 2

2 General User Information ...................................................................................................................... 3

3 Device Overview / Controls................................................................................................................... 4

4 Functional Description .......................................................................................................................... 5

5 Display Symbols .................................................................................................................................... 6

6 Operation diagram ................................................................................................................................ 7

7 Restricted Operating Menu ................................................................................................................... 8

General Layout ............................................................................................................................. 8

Description ................................................................................................................................... 9

8 Complete Operating Menu .................................................................................................................. 13

Overview ..................................................................................................................................... 13

Description ................................................................................................................................. 14

9 Fault/Remarks/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.

IMPORTANT

• Please observe the parts of these operating instructions applicable to your particular
version! This is indicated in the Section “Device Identification / Identity Code”!

• Correct measuring and metering is only possible in the case of impeccable operation of
the sensor. The sensor has to be calibrated / checked regularly!

NOTE

A form “Documentation of controller settings type D1C” is available under
www.prominent.com/documentation_D1C for the purpose of documenting the controller
settings.

3

3 Device Overview / Controls

Conductivity

"Change"

Button

"Branch back"

Button

"Down"

Button

DULCOMETER

STOP

START

Display field
Measured variable
inductive conductivity

Graphic
display

®

"Start/Stop"
Button

"Enter"
Button

®

"Up"
Button

STOP

START

CHANGE Button

To change over within a menu level
and to change from one variable to
another within a menu point.

START/STOP Button

Start/stop of control and metering
function.

ENTER Button

To accept, confirm or save a dis­played value or status. For alarm
acknowledgement.

D1C2-cond.-002-D

UP Button

To increase a displayed numerical
value and to change variables (flashing
display).

BRANCH BACK Button

Back to permanent display or to start
of relevant setting menu.

DOWN Button

To decrease a displayed numerical
value and to change variables (flashing
display).

4

4Functional 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 DULCOMETER® D1C controller!

4.1 Operating Menu

®

The DULCOMETER
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 (see “General
settings”).

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 if 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 - depending on the device version
(see identity code) and the setting.

The controlled variable is recalculated once a 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".

D1C controller permits settings to be made in two different menus. All values are

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.

This signal can be used, for example, for flow-proportional metering (multiplicative effect) or feed forward­dependent 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

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).

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 "

". 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 rectified of their own accord due to changed operating situations are removed from the
permanent display without the need for acknowledgement.

5

5 Display Symbols

The display of the DULCOMETER

®

D1C controller uses the following symbols:

Description Comment Symbol

Limit value transgression Symbol

Relay 1 upper left

Relay 1 lower left

Relay 2 upper right

Relay 2 lower right

Metering pump 1 (Increase conductivity) Symbol

Control off left

Control on left

Metering pump 2 (Reduce conductivity) Symbol

Control off right

Control on right

Symbol

Symbol

Symbol

Symbol

Symbol

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

6

6 Operation diagram

Permanent

display 1

The various menus are selected with
the CHANGE button

The menu is started with
the ENTER button

Permanent

display 2

Various

Setting menus

Access code

NOTE

Access to the setting menus can be barred with the access code!

The number and scope of setting menus depends on the device version!

BRANCH BACK to permanent display
or to relevant setting menu

Access code, correct

Parameter
setting

D1C2-cond.-007-GB

If the access code is selected correctly in a setting menu, 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!

BRANCH BACK without
saving setting

BRANCH BACK to
start of setting

Text 1

Selection 1

Text 2

Selection 2

CHANGE from selection to selection

Change numbers or
settings of selection

Variables flash

Text 1

Selection 1

Text 2

Selection 2

ENTER and save setting,
continue to next menu

D1C2-cond.-008-GB

7

7 Restricted Operating Menu / General Layout

The restricted operating menu permits simple operation of the most important parameters. The following
overview shows the settings which can be selected:

µS/cm

100

mea val.
fd. fwd.
reg. val.
w:

meas. parameter
setting ?

calibration cc ?

parameter record
setting ?

100 µS/cm

70 %
59 %

1000 µS/cm

PAR1

Only with parameter record 2

PAR1

Permanent display 1

Permanent display 2
only with control
(w = setpoint)

mr = meas. range
cc = cell constant

calibration cc
probe in buffer!
accept value?
1538 µS/cm 8.54

calibration cc
cc: 8.50 /cm

parameter record

Grenzwert2 oben

5.00 ppm
Grenzwert1 unten

1.00 ppm

PS1

Positive values of setting variable:
Negative values of setting variable:

2000 µS/cm

mr :
cc :

1106 µS/cm 25,0 °C

calibration cc
cc: 8.54 /cm
cond: 100 µS/cm

8.54/cm

mr 2 : 2000 µS/cm
cc 2 : 8.54 /cm

1106 µS/cm 25,0 °C

please wait!

Increase conductivity
Reduce conductivity

Number and scope of

setting menus depends

on the device.

Access to setting menus

can be blocked with

access code.

limit PS1
setting ?

Only with control

control
settings ?

Setting in
complete
operating
menu

general setting
information

limit2 upper

Grenzwert2 oben
1500 µS/cm

5.00 ppm
limit1 lower

Grenzwert1 unten
1000 µS/cm

1.00 ppm

control
regulated value:
positive cond
negative cond

control
normal
current regulat.
value:

30 %

or

control
with dead zone
current regulat.
value:

30 %

or

control
manual
current regulat.
value:

ident-code: D1CA
DxL6xxxxxxxxx
software version
D1C-L0 FW-2.03

30 %

➞

➞

For normal control

setpoint

1000 µS/cm

Control with dead zone

setpoint 2 upper

1500 µS/cm

setpoint 1 lower

1000 µS/cm

Proportional control

ctrl. parameter
xp =

10 %

PID control

ctrl. parameter
xp =

10 %

0 s

Ti =
Td =

0 s

Manual control

manual dosing

15 %

regulated range

input HW:
rev. y
input SW:
xx.xx.xx

alarm relais
active

access c.:
operating menu:

english

=
=

restricted

5000

D1C2-cond.-010-GB

8

Restricted Operating Menu / Description

µS/cm

Permanent display 1

100

mea val.
fd. fwd.
reg. val.

Conductivity calibration

Measurement parameters

meas. parameter
setting ?

100 µS/cm

70 %
59 %

1000 µS/cmw:

Permanent display 2
only with control
(w = setpoint)

Access to all setting menus can be blocked with an access code !

mr = meas. range
cc = cell constant

Positive values of setting variable: Increase conductivity
Negative values of setting variable: Reduce conductivity

D1C2-cond.-011-GB

2000 µS/cm

mr :
cc :

1106 µS/cm 25,0 °C

8.54/cm

mr 2 : 2000 µS/cm
cc 2 : 8.54 /cm

1106

µS/cm 25,0 °C

D1C2-cond.-030-GB

Possible values

Initial value Increment Lower value Upper value Remarks

Cell constant cc depending on 0.0001/cm 0.0060/cm 0.1499/cm cc can be adjusted for

sensor type 0.001/cm 0.150/cm 1.499/cm all mr over the

used 0.01/cm 1.50/cm 12.00/cm complete area

The measured value can be calibrated by changing the cell constant to the actual conductivity value
(arrow keys).

Cell constant calibration (cc)

calibration cc ?

PAR1

calibration cc
probe in buffer!
accept value?
1538 µS/cm 8.54

calibration cc
cc: 8.50 /cm

calibration cc
cc: 8.54 /cm
cond: 100 µS/cm

please wait!

D1C2-cond.-040-GB

9