A-5
HART Communicator
FIGURE A-4. Connecting the HART Communicator with the Optional Load Resistor
BASIC FEATURES
The basic features of the HART Communicator include Action Keys,
Function Keys, and Alphanumeric and Shift Keys.
FIGURE A-5. The HART Communicator
NOTE
Loopmustbebrokentoinsert
the optional 250 ohm resistor.
Optional 250 ohm
load resistor
Model 8712U
8712-8712Q11B, 0275B01A
Fuse
Function
Keys
Alphanumeric
Keys
Action
Keys
Shift
Keys
275-011AB