Electrical connection iTEMP TMT162
16 Endress+Hauser
5.3.2 Connecting the HART® communication resistor
If the HART® communication resistor is not integrated into the power supply unit, it is
necessary to incorporate a communication resistor of 250 Ω into the 2-wire cable. For
the connection, also refer to the documentation published by the HART® FieldComm
Group, particularly HCF LIT 20: “HART, a technical summary”.
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2
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³ 250 W
PMC731: PIC0001
Online
1 >Group Select
2 PV 0.7 bar
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6 HART® connection with other power supply units that do not have a built-in HART®
communication resistor
1 Temperature field transmitter
2 HART® communication resistor
3 PLC/DCS
4 Configuration software, e.g. FieldCare, DeviceCare
5 HART® modem
6 HART® handheld communicator
7 Configuration via Field Xpert SMT70
5.3.3 Shielding and grounding
The specifications of the HART FieldComm Group must be observed during installation.
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