Endress+Hauser Liquisys M CCM223 - Page 27

Liquisys M CCM223/253 Electrical connection
Endress+Hauser 27
Sensor Maximum cable length
Chlorine/chlorine dioxide sensors CCS140/141/240/ 241 Max. 30 m (98.4 ft) with cable CMK
Chlorine sensor 963 Max. 30 m (98.4 ft) with cable MK
Total chlorine sensor CCS120 Max. 15 m (49.2 ft) with cable CYK71
pH/ORP measurement Max. 50 m (164 ft) with cable CYK71
Use the junction box VBC and the appropriate extension cable to extend the measuring
cable.
2 x Pg 7
2 x Pg 11
5 x Pg 7
A
B
B
54 (2.13)
113 (4.45)
125 (4.92)
52 (2.05)
A0005740
 20 Junction box VBC with grounding point
A View in arrow direction
B 2 fixing bore holes Ø 4.5 mm (0.18")
BN
GN
1
2
3
4
5
6
7
8
A0002331
 21 Structure of cable CMK
1 Outer shield
2 Inner shield, anode
3 Semi-conductor layer
4 Inner insulation
5 Inner conductor, measuring signal
6 Temperature sensor connection
7 2nd insulation
8 Outer insulation
1
2 3
45
6
7
A0002332
 22 Structure of cable CYK71
1 Outer shield
2 Inner shield, reference signal
3 Inner insulation
4 Inner conductor, measuring signal
5 Semi-conductor layer
6 2nd insulation
7 Outer insulation
NOTICE
Incorrect measurement due to short-circuit
‣
Make sure to remove the black semiconductor layer as far as the inner shield when
connecting cable CMK and CYK71.