3.5
Measuring cell installation and cable connection
Measuring cable connection
The conductivity measuring cells are
connected using a special, shielded
multi-core cable.
Termination instructions are supplied with the
measuring cables.
Use junction box VBM (see chapter 9) to
extend the measuring cable.
Structure and termination of measuring cables
Special measuring cable required for connection of conductivity measuring cells
Measuring cell type
Cable
Extension
2-electrode measuring cell with or
without temperature sensor Pt 100
CYK 71
Junction box VBM
+ CYK 71
Inductive measuring cell CLS 50
Cable permanently
attached to sensor
Junction box VBM
+ CLK 5
Maximum cable length
Conductive conductivity
measurement
max. 100 m with CYK 71 (corresponds to 10 nF)
Resistance measurement
max. 15 m with CYK 71 (corresponds to 2 nF)
Inductive conductivity measurement
max. 55 m (with CLK 5 and sensor cable)
KABEL.CDR
Inner conductor
Green (11)
White (12)
Yellow (13)
CYK 71
Semiconductor
screen
Screen
Green (11)
White (1)
Yellow (13)
Brown
(unused)
Semiconductor
screen
White
Red
CLK 5
Brown
(unused)
Black
(84)
(83)
(84)
(83)
(15)
(16)
Fig. 3.13
Structure of special
measuring cables CYK 71
(left) and CLK 5 (right)
Installation
Liquisys M CLM 223 / 253
14
Hauser