Electrical connection
iTEMP TMT142B
12
Hauser
7. Wire the sensor cables and fieldbus/power supply as specified in the 'Connecting the
sensor' and 'Connecting the measuring device' sections. → 12, → 13
On completion of the wiring, screw the screw terminals tight. Tighten the cable glands again
and reassemble the device by following the reverse order of steps. Refer to the information
provided in the 'Ensuring the degree of protection' section. Screw the housing cover tight
again, fit the cover clamp and fasten.
5.2
Connecting the sensor
NOTICE
‣
ESD - electrostatic discharge. Protect the terminals from electrostatic discharge. Failure
to observe this may result in the destruction or malfunction of parts of the electronics.
Terminal assignment
3
3
3
3
3
3
1
1
1
1
1
1
1
4
4
2
2
2
2
2
RTD
W
RTD
W
RTD
W
TC
+
-
1
2
3
4
+ -
3
4
S1
-
+
!
4-wire
2-wire
3-wire
11 to 36 V
DC
4 to 20 mA
HART® - Signal
Sensor
Sensor
A0026193-EN
3
Quick wiring guide
In the event of a thermocouple (TC) measurement, an RTD Pt100 2-wire sensor can be
connected to measure the reference junction temperature. This is connected to terminals
1 and 3. The reference junction used is selected in the menu:
Application → Sensor →
Reference junction
For detailed information on the parameter description, see the document BA00191R/09
for the device.
