Endress+Hauser RIA 450 Manual De Instrucciones página 40

Process display
3.2.2 Option universal input (temperature)
1. For active current or voltage sources
2. For transmitters with passive current or voltage outputs and
external power supply.
If together with the option
"Universal input" the current
measurement and loop power
supply (terminals 81/82) is
used, then a link must be
added between terminals 14
and 82
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(e.g. transmitters with their own power supply and active
current output).
Current source
4 wire current connection
Voltage source
2 wire (Loop powered)
current connection
4 wire voltage connection