Emerson MICRO MOTION 2700 Manual de instalación descargar pdf (Pagina 40)

30 Transmitter Configuration and Use: Series 1000 and 2000 Transmitters

Flowmeter Startup continued

5.2 Applying power

Before you apply power to the flowmeter, close and tighten all housing covers.

Turn on the electrical power at the power supply. The flowmeter will automatically perform

diagnostic routines. When the flowmeter has completed its power-up sequence:

• For Model 1700/2700 transmitters under normal conditions, the status LED on the display will

turn green and begin to flash,

• For Model 1500/2500 transmitters under normal conditions, the status LED will turn green.

• If the status LED exhibits different behavior, an alarm condition is present or transmitter zero

is in progress. See Section 7.6.

5.2.1 Communication methods after power-up

For Model 1700/2700 transmitters, all communication methods supported by the transmitter are

available immediately after power-up.

For Model 1500/2500 transmitters:

• If you are using the Communicator, or ProLink II with HART protocol (HART/Bell202), you

can establish communication with the transmitter immediately after power-up, using terminals

21 and 22. See Chapter 4 for more information on using the Communicator, or Chapter 3 for

more information on using ProLink II.

• If you are using ProLink II via the RS-485 physical layer, terminals 33 and 34 are available in

service port mode for 10 seconds immediately after power-up. If no connection is made during

this period, the terminals are automatically reset to the configured Modbus communication

parameters. Be sure to set the ProLink II connection parameters appropriately. See Chapter 3.

WARNING

Operating the flowmeter without covers in place

creates electrical hazards that can cause death,

injury, or property damage.

Make sure safety barrier partition and covers for the

field-wiring, circuit board compartments, electronics

module, and housing are all in place before applying

power to the transmitter.

WARNING

Using the service port to communicate with a Model

1700/2700 transmitter in a hazardous area can cause

an explosion.

Before using the service port to communicate with the

transmitter in a hazardous area, make sure the

atmosphere is free of explosive gases.

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Emerson MICRO MOTION 2700 Manual de instalación Pagina 40