ProMinent DULCOTROL DWCa, Assembly And Operating Instructions Manual, Page: 40 / 140

CAUTION!
Defective control by incorrect measured values
Cause: Electrical faults are coupled into the control
circuit via the sample medium.
Consequence: Defective control by incorrect meas‐
ured values. The measuring fault can lead to an
uncontrolled control circuit.
Measure: Do not fit any sources of EMC interfer‐
ence into the water circulation system and close to
the system.
Perform regular comparative measurements with a
galvanically isolated measuring device.
Provide for potential separation of the power
supply from the measuring device to the power cir‐
cuit of the voltage to be measured or a potential
separation in the measuring signal path.
Connect the system to its own power supply, if
needed.
Fit a power repeater, if needed.
Note the electrical connection values on the nameplate of the
measuring and control station. The cable ends of the connecting
lines of the sensors are labelled according to the measured vari‐
able.
– Please also observe the operating instructions
for the controllers and fittings and any other
units, such as sensors, sample water pumps ...
The cable ends of the connecting lines of the sensors are labelled
according to the measured variable. The cable ends are labelled
by a cable marker defined as follows for the respective measured
variables:
Measured variable Controller, label Sensor type Cable, label
pH pH PHES P
ORP ORP RHES R
Conductive conductivity Conductivity LFTK1 Pre-installed
Inductive conductivity Conductivity ICT Pre-installed
Chlorine CL CLE, CTE CL
Bromine Br BCR BR
Chlorine dioxide CLO
2
CDE, CDP CD
Chlorite Chlorite CLT CT
Ozone O
3
OZE OZ
Peracetic acid PES/PAA PAA PA
Hydrogen peroxide H
2
O
2
PER PE
Dissolved oxygen O
2
DO3 Pre-installed
Measuring plate
Electrically and hydraulically assembling and installing the measuring points
40