CCS120
Installation
Hauser
9
A complete measuring system in the immersion mode comprises at least:
• Chlorine sensor
• Transmitter Liquisys M CCM223/253
• Special measuring cable
• Immersion assembly
a0003087
Fig. 3: Measuring system in the immersion mode (example)
3.3.2
Installing the sensor in flow assembly CCA250
The flow assembly CCA250 is designed for on-site installation of the sensor. In addition to the
chlorine sensor, a pH and redox sensor can be installed. A needle valve regulates the flow within
the range of 30 ... 100 l/h (7.92 ... 26.40 US.gal/h). If the value drops below 30 l/h (7.92
US.gal/h) or flow stops completely, this can be detected by an inductive proximity switch and
an alarm signal plus locking of the dosage pumps can be triggered.
Note the instructions and safety guidelines in the operating instructions of the flow assembly.
If the medium is fed back into a surge tank, pipeline or the like, ensure that the thus generated
back pressure on the sensor does not exceed 1 bar (14.5 psi) and remains constant.
Negative pressure at the sensor, e.g. by feedback of medium to the suction side of a pump, must
be avoided.
1
2
4
5
3
CAL
REL
REL 1
REL 1
ALARM
REL 2
REL 2
E
mg/l
25.0 ¡C
0.42
1
Junction box VBM
4
Immersion assembly CYA611-0B
2
Transmitter
5
Chlorine sensor CCS120
3
Measuring cable CYK71
