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iTEMP TMT182B
Endress+Hauser
5.3
Connecting the transmitter
Cable specification
• A normal device cable suffices if only the analog signal is used.
• A shielded cable is recommended for HART
concept of the plant.
Also observe the general procedure on → 12.
4
Connecting the signal cables and power supply
1
Head transmitter installed in the terminal head or field housing
2
Terminals for HART
®
protocol and power supply
3
Internal ground connection
4
External ground connection
5
Shielded signal cable (recommended for HART
• The terminals for connecting the signal cable (1+ and 2-) are protected against
reverse polarity.
• Cable cross-section max. 1.5 mm
5.4
Special connection instructions
Shielding and grounding
The specifications of the FieldComm Group™ must be observed when installing a HART®
transmitter.
1
5
Shielding and grounding the signal cable at one end with HART
1
Optional grounding of the field device, isolated from cable shielding
2
Grounding of the cable shield at one end
3
Supply unit
4
Grounding point for HART
®
1
®
protocol)
2
2
- .
®
communication cable shield
Electrical connection
communication. Observe grounding
2
3
4
5
3
4
®
communication
A0050721
A0014463
13
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