Endress+Hauser Liquiline CM44P - Connecting the Sensors

Liquiline CM44P Electrical connection
Endress+Hauser 29
5.2 Connecting the sensors
5.2.1 Sensor types for non-hazardous area
Sensors with Memosens protocol
Sensor types Sensor cable Sensors
Digital sensors without
additional internal power
supply
With plug-in
connection and
inductive signal
transmission
• pH sensors
• ORP sensors
• Combined sensors
• Oxygen sensors (amperometric and optical)
• Conductivity sensors with conductive measurement of
conductivity
• Chlorine sensors (disinfection)
Fixed cable Conductivity sensors with inductive measurement of
conductivity
Digital sensors with
additional internal power
supply
Fixed cable • Process spectrometer
• Turbidity sensors
• Sensors for interface measurement
• Sensors for measuring the spectral absorption coefficient
(SAC)
• Nitrate sensors
• Optical oxygen sensors
• Ion-sensitive sensors
The following rule applies if connecting CUS71D sensors:
• The maximum number of Memosens inputs is limited to two.
• Any combination of CUS71D or other sensors is possible.
5.2.2 Sensor types for hazardous area
Sensors with Memosens protocol
Sensor types Sensor cable Sensors
Digital sensors without
additional internal power supply
With plug-in connection
and inductive signal
transmission
• pH sensors
• ORP sensors
• Combined sensors
• Oxygen sensors (amperometric and optical)
• Conductivity sensors with conductive measurement
of conductivity
• Chlorine sensors (disinfection)
Fixed cable Conductivity sensors with inductive measurement of
conductivity
Intrinsically safe sensors for use in explosive atmospheres may only be connected to the
sensor communication module type 2DS Ex-i. Only the sensors covered by the certificates
may be connected (see XA).
The sensor connections for non-Ex sensors on the base module are disabled.