Siemens SITRANS P Manual de usuario descargar pdf (Pagina 64)

Installation UMSITRPDS3-1

November 2010

4-12

MG00350a

- +

4-20 mA

Hazardous

Location

Non-Hazardous

Location

Procidia

Terminals

AIN1

See Note 4

Transmitter

Terminals

See Note 5

250

See Note 1

See Note 2

See Note 6

See Note 3

GND

Common Ground Bus

1. Minimum network resistance equals the sum of the barrier resistances and the current sense resistor. Minimum

value is 250 Ohms; maximum value is 1100 Ohms.

2. Connect the HART Communicator as shown in Figure 2-2 for hazardous and non-hazardous locations. The

HART Communicator is a non-polar device.

3. Supply and return barriers are shown. Interconnect all cable shields and ground only at the barriers.

4. Procidia (Model 353R or i|pac) terminal assignments are:

• 34 – Analog Input 1 +

• 35 – Analog Input 1 Common

• 33 – 24 Vdc

• 18 – Station Common

5. For access to transmitter field terminals, remove the enclosure cap.

6. Maximum cable length is as calculated using the formula in section 4.3.6.

FIGURE 4-7 Procidia to Transmitter Connections (Analog Mode)

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 221 222

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Siemens SITRANS P Manual de usuario Pagina 64