HIMA X-AI 32 01 - Characteristics of HART Communication

X-AI 32 01 4 Start-up
HI 801 021 E Rev. 4.00 Page 47 of 58
4.4.6 Characteristics of HART Communication
To ensure HART communication, a HART handheld can be connected in parallel to the
transmitter. The current fluctuation caused by the HART communications is removed using
filters on the analog input so that the residual error of the analog measurement is 1%.
i
Higher residual error with HART communication. Remove the HART terminal directly after
the diagnosis!
Connector Board
X-AI 32 01
AI-
S-
S+
AI+
AI_R+
HART
2
1
Transmitter Supply Analog Input
Figure 21: HART Handheld in Parallel to the Transmitter and Input Module