Wiring; Dc Voltage Version With M12X1 - Endress+Hauser Flowphant T DTT31 Operating Instructions Manual

DTT31, DTT35
4

Wiring

DTT35: Electrical cables must comply with 3-A standard.
They must be smooth, corrosion resistant and cleanable.
4.1 DC voltage version with M12x1 connector
A1
1
2
4
3
A3
1
2
3 4
Flowphant T with M12x1 connector
A1: 1x PNP switch output
A2: 2x PNP switch outputs R1 and m (R2)
A2': 2x PNP switch output R1 and m (diagnosis/NC contact for "DESINA" setting)
A3: 1x PNP switch output and 1x analog output (4 to 20 mA)
CAUTION
!
To avoid any damage to the analog input of a PLC, do not connect the active PNP switch output
of the device to the 4 to 20 mA input of a PLC.
DESINA (→ Chap. 5.1.6, basic settings):
R2 = diagnosis/NC contact (more information on DESINA can be found at www.desina.de).
NOTICE
Once connected to the power supply, the sensor tip of the device heats up! The temperature can
reach up to approx. 90 °C (194 °F).
Endress+Hauser
L+
R1
L–
L+
4...20 mA
R2
L–
A2
A2'
2 1
4
3
R1
Wiring
L+
m
L–
A0006818
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