Functional Description - ProMinent DULCOMETER diaLog DACb Assembly And Operating Instruction

Functional Description

4 Functional Description
The DULCOMETER
®
Multi-parameter Controller diaLog DACb is a
controller platform manufactured by ProMinent.
In the remainder of this document, the term
'controller' is consistently used for the
DULCOMETER ® . The controller has been
developed for continuous measurement and
control of liquid analysis parameters. For water
treatment processes in environmental tech‐
nology and industry. The controller is available
in a version with 2 or 3 measuring channels.
The controller can operate together with con‐
ventional analogue sensors and actuators. The
controller is equipped to communicate with dig‐
ital sensors and actuators via the CANopen
sensor/actuator bus.
Typical applications:
Potable water treatment,
n
Waste water treatment,
n
Industrial and process water treatment,
n
Swimming pool water treatment.
n
Standard equipment:
1 measuring channel with 14 freely select‐
n
able measured variables (via mV or mA
input) – depending on the identity code.
PID controller with frequency-based
n
metering pump control for 2 metering
pumps.
2 analogue outputs for measured value,
n
correction value or control variable
(dependent on the optional equipment).
4 digital inputs for sample water fault
n
detection, pause and parameter switch-
over.
2 relays with limit value functions, timer
n
and non-continuous control, 3-point step
control (dependent on the optional equip‐
ment).
Power supply 20 V DC.
n
26
Measured variables and language selec‐
n
tion during commissioning.
Temperature compensation for the pH and
n
fluoride measured variables.
22 operating languages.
n
Saving and transfer of device parametrisa‐
n
tion to an SD card.
Subsequent upgrade of the software func‐
n
tion by means of an activation key or firm‐
ware update.
Disturbance variable processing (flow) via
n
frequency.
Measured value trend display via the con‐
n
troller display.
Optional accessories:
Third complete measuring and control
n
channel with 14 freely selectable meas‐
ured variables (via mV or mA input).
PC configuration software.
n
Data and event logger with an SD card.
n
Disturbance variable processing (flow)
n
also via mA.
Compensation of the influence of pH on
n
chlorine measurement.
3 additional digital inputs, e.g. for level
n
monitoring.
PROFIBUS ® -DP *.
n
Modbus-RTU.
n
PROFINET .
®
n
Visualisation via LAN/WLAN web access.
n