Endress+Hauser iTEMP TMT82 - Operating Options; Overview of Operation Options

Electrical connection iTEMP TMT82
22 Endress+Hauser
5.4 Connecting the transmitter
Cable specification
• A normal device cable suffices if only the analog signal is used.
• A shielded cable is recommended for HART
®
communication. Observe grounding
concept of the plant.
• In the case of the head transmitter version in the field mount housing with separate
terminal compartment or the DIN rail version, a shielded cable must be used if the
sensor cable length exceeds 30 m (98.4 ft). The use of shielded sensor cables is
generally recommended.
Please also observe the general procedure on →  16.
1 2
3
5
2-
1+
2-
1+
2-
1+
6
7
8
5
7
8
+
-
1
2
3
4
5
6
+
-
3
4
+
-
3
4
5
6
7
8
A0042362
 13 Connecting the signal cables and power supply
1 Head transmitter installed in field mount housing with separate terminal compartment
2 Head transmitter installed in field housing
3 Head transmitter installed in terminal head
4 DIN rail transmitter mounted on DIN rail
5
Terminals for HART
®
protocol and power supply
6 Internal ground connection
7 External ground connection
8
Shielded signal cable (recommended for HART
®
protocol)
• The terminals for signal cable connection (1+ and 2-) are protected against reverse
polarity.
• Conductor cross-section:
• Max. 2.5 mm
2
for screw terminals
• Max. 1.5 mm
2
for push-in terminals. Min. stripping length of cable
10 mm (0.39 in).
5.5 Special connection instructions