Functional Description - ProMinent DULCOMETER Assembly And Operating Instructions Manual

4

Functional description

Brief functional description
The controller for chlorine measured vari‐
ables provides basic functions for water
treatment applications. The controller has
a fixed configuration with the following
features:
Language independent operation.
n
Use of abbreviations, such as:
[INPUT]
–
[OUTPUT]
–
[CONTROL]
–
[ERROR]
–
Illuminated display
n
3 LEDs indicate the operating states:
n
[f-REL] , active
–
[P-REL] , active
–
– Error
Control characteristics:
n
– P, or
– PID
Selectable control direction:
n
– Raise measured value, or
– lower measured value
Impulse frequency relay
n
metering pump control
[P-REL] , configurable as:
Output relay
n
– Alarm
– limit value
– PWM control output for metering
pumps
Analog output 0/4...20 mA, configu‐
n
rable:
– Measured value, or
– Correction variable
Suction function for all actuators
n
Digital input to switch off the control or
n
to process a sample water limit con‐
tact by remote control
n
n
Applications:
n
n
[f-REL] for
Functional description
Temperature sensor input (Pt100 or
Pt 1000) for temperature compensa‐
tion
Degree of protection
– IP67 (wall / pipe mounting)
– IP54 (control panel mounting)
Treatment of drinking water
Swimming pool water treatment
15