Endress+Hauser RIA452 Manuel De Mise En Service page 50

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Brief overview
For rapid and easy commissioning:
Safety instructions
Installation
Display and operating elements
Commissioning
Device configuration - explanation and use of all the configurable device
functions with the associated value ranges and settings.
Block diagram
Analog input:
1 x current (0/4...20 mA)
or 1 x universal (I, U, R, TC, RTD)
or 1 x intrinsically safe current input
Digital input:
4 x digital status input
Power supply:
90...250 V AC
or 20...36 V DC /
20...28 V AC
Interfaces:
1 x RS 232
1 x CDI
Fig. 1: Block diagram RIA452
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Wiring
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RIA452
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Relays:
4 x change-over contact
8 x change-over contact
Output:
Analog (I, U)
Pulse (with integration)
Transmitter power supply:
1 x 250 mA, 24 V DC
1 x 22 mA, 24 V DC, intrinsically safe
optional
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