CiDRA SONARtrac Quick Start - Manual (Page 22)

4.2.2 4-20mA Transmitter and DCS Connections
Connect to the appropriate terminals on the transmitter connector
board.
Figure 4 Transmitter Connector Board 4-20mA Connections
SONARtrac transmitter SONARtrac transmitter
(Internal 4-20mA) (External 4-20mA)
V
EXT
V
EXT
I
OUT
V
INT
I
OUT
V
INT
SONARtrac
Transmitter HART 275
Communicator
Figure 5 Transmitter to DCS Wiring for Internal and External Power Select
4.2.3 Fisher-Rosemount Model 275 Handheld HART Terminal
The polarity is unimportant for the Model 275; however, the
SONARtrac power select MUST be Internal. The value of R must be
250 ohms.
Figure 6 SONARtrac Transmitter and HART 275 Communicator
Plant DCS
- +
Plant DCS
+ -
Copyright © 2007 CiDRA Corporation Page 4-2
20984-01 Rev 01