Liquisys M CLM223/253 Electrical connection
Endress+Hauser 19
Panel-mounted instrument connection
a0008912
Fig. 11: Panel-mounted instrument connection sticker
1 Ground terminal
Nonobservance could cause incorrect measurement
‣ Terminals marked NC may not be wired.
‣ Unmarked terminals may not be wired.
Please label the sensor terminal block with the sticker provided.
4.1.3 Measuring cable and sensor connection
You require screened special measuring cables to connect conductivity sensors to the
transmitter. The following multi-core and ready-to-use cable types can be used:
Sensor type Cable Extension
Two-electrode sensors with or without
temperature sensor Pt 100
CYK71
CPK9* (for CLS16)
Junction box VBM + CYK71
Inductive sensors CLS50, CLS52 Cable permanently attached
to sensor
Junction box VBM + CLK5
* High-temperature version without PML
Maximum cable length
Conductivity measurement (conductive) max. 100 m (328 ft) with CYK71
Resistivity measurement max 15 m (49.22 ft) with CYK71
Conductivity measurement (inductive) max. 55 m (180.46 ft) with CLK5 (sensor cable incl.)