Supply voltage and resistance requirementsFigure C-4:
A. External resistance (ohms)
B. Supply voltage VDC (volts)
C. Operating range
Note
3. To connect to a point in the local HART loop:
a. Attach the leads from the signal converter to any point in the loop, ensuring that
the leads are across the resistor.
b. Add resistance as necessary to achieve at least one volt across the connection
points.
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 III with the transmitter
Configuration and Use Manual 201
To Next Page
Loading...
