Endress+Hauser Liquiline CM444 - Connecting Additional Inputs, Outputs or Relays

Liquiline CM442/CM444/CM448 Electrical connection
Endress+Hauser 27
98i97i88i87i
98i97i88i87i
BN
WH
GN
YE
Sensor
BN
WH
GN
YE
Sensor
2DS
Ex-i
A0045659
 30 Sensors without additional supply voltage at sensor communication module type 2DS Ex-i
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).
5.3 Connecting additional inputs, outputs or relays
L
WARNING
Module not covered
No shock protection. Danger of electric shock!
‣
Change or extend the hardware for the non-hazardous area: always fill the slots from left
to right. Do not leave any gaps.
‣
If all of the slots are not occupied in devices for the non-hazardous area: always insert a
dummy cover or end cover in the slot to the right of the last module. This ensures that the
unit is shock-protected.
‣
Always ensure shock protection is guaranteed particularly in the case of relay modules (2R,
4R, AOR).
‣
Hardware for the hazardous area may not be modified.
‣
If additional shields are required, connect them with PE centrally in the control cabinet via
terminal blocks supplied by the customer.