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Transmitter power supplies transfer 4…20 mA signals from standard or SMART transmitters in hazardous areas and supply them with power. They deliver an isolated signal that is proportional to a measured value such as temperature, pressure, or flow from hazardous areas to safe areas.

The power supply and signal are transferred through the same conductors in 2-wire transmitters allowing only 4…20 mA signals. SMART transmitter power supplies repeat the transmitter current in addition to a digital signal, which is modulated onto the 4…20 mA signal.


Safety Integrity Level (SIL): Functional Safety for Your Applications

Safety Integrity Level (SIL): Functional Safety for Your Applications

Learn more about the Safety Integrity Level (SIL): how can you establish the required risk reduction? What are typical misconceptions? Which SIL assessed products does Pepperl+Fuchs offer you?