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6.1 Note on Model 275 HART Communicator
The Model 275 HART Communicator is a product of Rosemount Measurement. This section contains selected
information on using the Model 275 with the Rosemount Analytical Model 3081 pH/ORP Transmitter. For complete
information on the Model 275 Communicator, see the Model 275 instruction manual. For technical support on the
Model 275 Communicator, call Rosemount Measurement at (800) 999-9307, within the United States. Support is
available worldwide on the internet at http://rosemount.com.
6.2 Connecting the HART Communicator
Figure 6-1 shows how the Model 275 HART Communicator connects to the output lines from the Model 3081
pH/ORP Transmitter.
MODEL 3081 pH/ORP SECTION 6.0
OPERATION WITH MODEL 275
SECTION 6.0
OPERATION WITH MODEL 275
6.1 Note on Model 275 HART Communicator
6.2 Connecting the HART Communicator
6.3 Operation
FIGURE 6-1. Connecting the HART Communicator
4-20 mA + Digital
250
ohm
Control System
Computer
Model 3081 pH
Smart
Transmitter
Bridge
Hand Held
Communicator
(“Configurator”)
CAUTION
For intrinsically safe CSA and FM
wiring connections, see the Model
275 instruction manual.