Liquisys M CCM223/253
Electrical Connection
Hauser
23
Connection of the sensors 963
The sensor 963 is supplied without temperature sensor ex factory. Connect the sensor to the
transmitter as follows:
• Without temperature measurement:
Connect the supplied resistor10 k
to the terminals 11 and 12. The measured value
display will constantly indicate 25 °C (77 °F).
• With temperature measurement:
Install the NTC temperature sensor10 k
/ 25 °C (77 °F) (120 mm installation version TSP
3692) into the sensor 963. Use the measuring cable CPK1 to connect the temperature
sensor to the terminals 11 and 12 of the transmitter.
• Chlorine sensor:
Connect the red wire to terminal 92 (cathode) and the blue wire to the terminal 91
(anode).
Connection of pH or ORP sensors
Connect the pH or ORP sensor
always symmetrically
to prevent a mutual interference of
several sensors mounted in the CCA250 assembly.
Symmetrical connection requires a potential matching pin. It is integrated as standard in the
CCA250 flow assembly and is connected to the PA/PM terminal by a potential matching
line.
a0002330-en
Fig. 15:
Connection of the pH or ORP sensor to the field instrument with the cables CPK1 or CPK9
CPK1
CPK9
PM
pH / Redox
PM
pH + Pt 100 / Pt 1000
Coax Ref.
pH or Redox
BN PM
Coax BK
Ref.
inner pH
GN Temp.
WH Temp.
YE
Temp.
BN
PM
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