Power Supply Connection; Loop Power Supply Connection - Endress+Hauser RIA250 Manual De Instrucciones

3.2 Power supply connection

- Before installing the unit please check that the power supply
corresponds with that shown on the unit legend plate.
- Always connect the earth protection cable before attempting
to connect any other cables.
- When operating with a 90 to 250 V
must be situated within easy reach of the unit. This should
also be fused with max ≤ 10 A.

3.3 Loop power supply connection

The unit is fitted with a loop power supply that is galvanically
isolated from the signal input. This means that transmitters do
not need any further external components to power them.
Internal circuit
unit a power isolator
AC
Process display
45