Siemens SITRANS P Manual do Utilizador descarregar pdf (Página 63)

UMSITRPDS3-1 Installation

November 2010

4-11

- +

4-20 mA

- +

4-20 mA

MG00349a

Controller,

Recorder,

Indicator, or

other 1-5 Vdc

Device

See Note 1

Transmitter

Terminals

See Note 5

250

See Note 2

System Power

Supply

Network

Junction

See Note 3

See Note 6

Network for Non-Hazardous Locations

Network for Hazardous Locations

Hazardous

Location

Non-Hazardous

Location

Controller,

Recorder,

Indicator, or

other 1-5 Vdc

Device

See Note 1

Transmitter

Terminals

See Note 5

250

See Note 2

System Power

Supply

See Note 3

See Note 6

See Note 4

The system power supply is shown separate from the host input device. In practice, it may be part of the host input

device. This device can be a HART or non-HART signaling device, a Primary Master, or a Secondary Master.

Network resistance equals the sum of the barrier resistances and the current sense resistor. Minimum value is 250

Ohms; maximum value is 1100 Ohms.

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

Communicator is a non-polar device.

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

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

Maximum loop cable length is as calculated using the formula in Section 4.3.6.

FIGURE 4-6 Point-To-Point Network (Analog Mode)

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 ... 221 222

Comentários a estes Manuais

Sem comentários

Siemens SITRANS P Manual do Utilizador Página 63

Comentários a estes Manuais

Manuais e produtos relacionados com Medição, teste e controlo Siemens SITRANS P