Endress+Hauser HART iTEMP TMT142B, Руководство по эксплуатации

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Electrical connection iTEMP TMT142B
14 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”.
TMT142B
FieldCare/
DeviceCare
HART®
Modem
PLC
200
3
2
³
250 Ω
PMC731: PIC0001
Online
1 >Group Select
2 PV 0.7 bar
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1
A0041589
 5 HART® connection with other power supply units that do not have a built-in HART®
communication resistor
1 Configuration via Field Xpert SMT70
2 HART® handheld communicator
3 HART® communication resistor
5.3.3 Shielding and grounding
The specifications of the FieldComm Group must be observed during installation.