Basic Setup and Calibration HART COMMUNICATOR CONNECTIONS
FIELD
CONTROL ROOM
4-20 MA LOOP CONNECTIONS
FIELD INSTRUMENT CONNECTION
CONTROLLER I/O
HF200 SERIES HART FILTER – +
– +
1
3
HART COMMUNICATION CONNECTION
2
NOTE: 1 NOT ALL CONTROL SYSTEMS REQUIRE A HART FILTER. IF NO HART FILTER IS PRESENT, CONNECT HART COMMUNICATOR TO CONTROL SYSTEM OUTPUT TERMINALS. 2 SEE FIGURE 2-4 FOR TERMINAL BOX DETAILS. 38B6470-A / DOC A6194–3 / IL
Figure 3-1. Connecting the HART Communicator to a FIELDVUE Instrument
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Connecting the Model 275 HART Communicator to the Digital Valve Controller The HART Communicator may be connected to the 4 to 20 mA loop wiring or directly to the digital valve controller (see figure 3-1). If the HART Communicator is connected directly to the digital valve controller, attach the clip-on wires provided with the HART Communicator to the TALK terminals, or the LOOP + and – terminals, in the digital valve controller terminal box. The TALK terminals are the same as the LOOP + and – terminals (see figure 2-4).
Basic Setup CAUTION Changes to the instrument setup may cause changes in the output pressure or valve travel.
November 2000
Before beginning basic setup, be sure the instrument is correctly mounted. Refer to the installation instructions supplied with the mounting kit. Connect a 4–20 mA current source to the instrument. Connect the HART Communicator to the instrument and turn it on. For information on connecting the HART Communicator, see Connecting the Model 275 HART Communicator to the Digital Valve Controller .
Typical Mountings The Setup Wizard determines the required setup information based upon the actuator manufacturer and model specified. Turn on the HART Communicator and start the Setup Wizard by proceeding through the menu sequence shown in figure 3-2 or enter the fast-key sequence 1-1-1-1 on the keypad. Follow the prompts on the HART Communicator display to setup the instrument. If the actuator on which the instrument is mounted is not listed by the Setup Wizard, specify OTHER as the actuator manufacturer or actuator type and go to “Other Mounting” on page 3-3 of this guide. During basic setup, the Setup Wizard will ask you if you want to use factory defaults. If you select YES, the Setup Wizard sets the setup parameters to the values listed in table 3-1. If you select NO, the setup parameters listed in the table remain at their previous settings.
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