Emerson MICRO MOTION 2700 Manual de Instalação descarregar pdf (Página 27)

Transmitter Configuration and Use: Series 1000 and 2000 Transmitters 17

Connecting with ProLink II Software continued

Using the Display Using the CommunicatorUsing ProLink IIBefore You Begin

Figure 3-4 HART/Bell202 connections to Model 1700/2700 AN or Model 2700 CIO

Figure 3-5 HART/Bell202 connections to Model 1700/2700 IS

5. Add resistance as required. The Viator HART interface must be connected across a resistance

of 250–600 Ω. In addition, if you are using an IS transmitter, the primary mA output requires

an external power supply with a minimum of 250 Ω and 17.5 volts (see Figure 3-6). To meet

the resistance requirements, you may use any combination of resistors R1, R2, and R3 (see

Figure 3-4 or 3-5).

VIATOR

1 (+)

2 (–)

Model 1700/2700 AN

Model 2700 CIO

See Step 5

DCS or

PLC

See Step 5

VIATOR

See Step 5

1 (+)

2 (–)

External power supply

See Step 5

Model 1700/2700 IS

See Step 5

DCS or

PLC

–

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Emerson MICRO MOTION 2700 Manual de Instalação Página 27