Emerson 2400S Manuel d'installation télécharger pdf (Page 17)

Installation Manual 13

I/O Wiring – Model 2400S Analog Transmitters

Power Supply I/O Wiring – DP and DNI/O Wiring – ANBefore You Begin

Figure 3-1 Basic mA output wiring – Internal power

Figure 3-2 HART/analog single-loop wiring – Internal power

820 Ohm maximum

loop resistance

–

HART-compatible

host or controller

For analog communications:

• 820 Ohm maximum loop

resistance

For HART communications:

• 600 Ohm maximum loop

resistance

• 250 Ohm minimum loop

resistance

–

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Emerson 2400S Manuel d'installation Page 17