Technical information

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Ultrasonic Level Sensor LUC-M**

Auxiliary energy

DOCT-0805F 01/2010 185414

Auxiliary energy

Terminal compartment In the F12 housing, the terminals are located underneath the housing cover. In the T12 housing,

they are under the cover of the separate terminal compartment.

Terminal assignment

• Connect the connecting line to the screw terminals (line cross-sections of 0.5 mm ... 2.5mm

(0.02 in ... 0.1 in)) in the terminal compartment.

• Use 2-wire twisted pair cable with screen for the connection.

• Protective circuitry against reverse polarity, RFI and over-voltage peaks is built into the device.

sealed terminal

compartment

F12 housing

T12 housing

4 mA ... 20 mA with HART, 2-wire 4 mA ... 20 mA with HART, active, 4-wire

(> 250 Ω)

I+ I-

L+

L-

4 mA ... 20 mA

PAL

Communication

resistor

HART

modem

alternative

Auxiliary

voltage

Test socket for

testing of the

signal current

I+ I-

N/L-

L1/L+

AC / DC