Endress+Hauser iTEMP TMT71 - Quick Wiring Guide

iTEMP TMT71, TMT72 Electrical connection
Endress+Hauser 19
5.2 Quick wiring guide
6
5
4
3
1+
2-
6
5
4
3
Sensor input
Supply
voltage/
bus connection
Display connection/
CDI interface
TC, mV
RTD, Ω 4-, 3- and 2-wire:
white
white
red
red
A0038010-EN
 8 Terminal assignment of head transmitter
-
+
5
6
4
3
1
2
1
2
4
3
5
6
Sensor input
Supply voltage
4...20 mA
RTD, Ω 4-, 3- and 2-wire:
white
white
red
red
TC, mV
A0039318-EN
 9 Assignment of terminal connections for DIN rail transmitter
A minimum load of 250 Ω is required in the signal circuit in order to operate the HART
®
transmitter via the HART
®
protocol (terminals 1 and 2).
In the event of a thermocouple (TC) measurement, a 2-wire RTD can be connected to measure
the reference junction temperature. This is connected to terminals 4 and 6.