Emerson MICRO MOTION 2700 Instrukcja Instalacji Strona 27

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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 . In addition, if you are using an IS transmitter, the primary mA output requires
an external power supply with a minimum of 250 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
R2
See Step 5
R3
See Step 5
DCS or
PLC
R1
See Step 5
VIATOR
R1
See Step 5
1 (+)
2 (–)
External power supply
See Step 5
Model 1700/2700 IS
R2
See Step 5
R3
See Step 5
DCS or
PLC
+
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