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Procedure
1. Attach the signal converter to the serial port or USB port on your PC.
2. To connect directly to the transmitter terminals:
a. Connect the leads from the signal converter to terminals 21 and 22.
Tip
HART connections are not polarity-sensitive. It does not matter which lead you attach to
which terminal.
b. Add resistance as necessary.
Important
HART/Bell 202 connections require a voltage drop of 1 VDC. To achieve this, add
resistance of 250–600 Ω to the connection.
Connection to transmitter terminalsFigure A-2:
A
C
D
B
A. PC
B.
Signal converter
C. 250–600
Ω
resistance
D. Transmitter
Note
This figure shows a serial port connection. USB connections are also supported.
3. To connect from a point in the local HART loop:
a.
Attach the leads from the signal converter to any point in the loop.
b. Add resistance as necessary.
Important
HART/Bell 202 connections require a voltage drop of 1 VDC. To achieve this, add
resistance of 250–600 Ω to the connection.
Using ProLink II with the transmitter
Configuration and Use Manual 185