Electrical Connection; Power Supply - Endress+Hauser Flowphant T DTT31 Technical Information

DTT31, DTT35
Switching capacity
Inductive load

Electrical connection

Endress+Hauser
DC voltage version:
• Switch status ON: I ≤ 250 mA, switch status OFF: I
a
• Switching cycles: > 10,000,000
• Voltage drop PNP: ≤ 2 V
• Overload protection
Automatic testing of switching current; output is switched off in case of overcurrent, the switching
current is tested again every 0.5 s; max. capacitance load: 14 μF for max. supply voltage (without
resistive load)
Periodic disconnection from a protective circuit in event of overcurrent (f = 2 Hz) and indication of
'Warning'
To prevent electrical interference, only operate an inductive load (relays, contactors, solenoid valves)
when directly connected to a protective circuit (free-wheeling diode or capacitor).fdg

Power supply

Plug connection
DTT35: Electrical cables must comply with 3-A standard, must be smooth, corrosion resistant
and cleanable.
M12x1
A
A: M12x1 connector
B: Valve connector M16x1.5 or NPT ½"
Device connection
• DC voltage version with M12x1 connector
A1
1
2
R1
3 4
A3
1
2
3 4
4...20 mA
≤ 1 mA
a
M16x1.5 / NPT ½"
B
A2
A2'
L+
2
3
L–
L+
R2
L–
L+
1
4
m
R1
L–
A0023196
A0006818
5