Endress+Hauser Liquiline CM442R - Page 24

Electrical connection Liquiline CM442R/CM444R/CM448R
24 Endress+Hauser
5.2.2 Sensor types with Memosens protocol 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.
5.2.3 Mounting the terminal strip for sensor communication module 2DS Ex-i
1.
2.
A0045451
1. Fit the cable duct with the central bore over the thread of the sensor communication
module 2DS Ex-i.
2. Tighten the cable duct.
3. Establish the grounding of the cable duct (e.g. via the cable duct of the base module).