7 Communicating with the transmitter
Use either the HART terminals connected to ProLink III or a hand-held 475 or Trex unit to
download or upload data from/to the transmitter, because the service port is for factory
use only.
Procedure
1. To connect to the transmitter terminals or to the HART connection posts:
a) Remove the transmitter end-cap.
b) Attach the leads from the Field Communicator to terminals 1 and 2 on the
transmitter, or to the HART connection posts, and add resistance as required.
The Field Communicator must be connected across a resistance of
250–600 Ω.
Tip
HART connections are not polarity-sensitive. It does not matter which lead
you attach to which terminal.
Figure 7-1: Field Communicator connection to transmitter terminals
A. Field Communicator
B. 250–600 Ω resistance
C. External power supply, if required
D. Transmitter with end-cap removed
E. HART connection posts
F. Factory use only
2. Turn on the Field Communicator and wait until the main menu is displayed.
Installation Manual Communicating with the transmitter
MMI-20058013 April 2019
Installation Manual 39
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