KFD2-ER-1.W.LB Conductive Switch Amplifier

Item code: PF.217735

Condition: New product


- 1-channel signal conditioner;
- 24 V DC supply (Power Rail);
- Level sensing input;
- Adjustable range 1kΩ ... 150kΩ; 
- Relay contact output;
- Fault relay contact output;
- Adjustable time delay up to 10s; 
- Minimum/maximum control;
- Line fault detection (LFD);

Pepperl+Fuchs KFD2-ER-1.W.LB.

Code: 217735.

3 Items

150,00 € tax excl.

Data sheet

Product type Switch Amplifier

More info

This signal conditioner provides the AC measuring voltage for the level sensing electrodes.
Once the measured medium reaches the electrodes, the unit reacts by energizing a form C changeover relay contact.
The module is voltage and temperature stabilized and guarantees a defined switching characteristic.
It can be used for on/off control or minimum/maximum control. A signal delay feature is available and is adjustable between 0.5 s and 10 s.
This module can also monitor the field circuit for lead breakage (LB). LB is indicated by a red LED. This function can be deactivated with DIP switches.

General specifications
Signal type Digital Input
Connection Power Rail or terminals 14+, 15-
Rated voltage 20 ... 30 V DC
Rated current 30 ... 40 mA
Connection side field side
Connection terminals 1 (mass), 2 (min), 3 (max)
Control input min./max. control system: terminals 1, 2, 3
on/off control system: terminals 1, 3
Response sensitivity 1 ... 150 kΩ , adjustable via potentiometer
Connection side control side
Connection terminals 7, 8, 9; 10, 11, 12
Switching power max. 192 W , 2000 VA
Output relay
Contact loading 253 V AC/2 A/cos φ > 0.7; 40 V DC/2 A resistive load
Time constant for signal damping 0.5 s, 2 s, 5 s, 10 s
Galvanic isolation
Input/Output basic insulation according to EN 50178, rated insulation voltage 253 Veff
Input/power supply basic insulation according to EN 50178, rated insulation voltage 253 Veff
Output/power supply basic insulation according to EN 50178, rated insulation voltage 253 Veff
Display elements LEDs
Control elements DIP switch
Configuration via DIP switches
via potentiometer
Labeling space for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2004/108/EC EN 61326-1:2006
Low voltage
Directive 2006/95/EC EN 50178:1997
Insulation coordination EN 50178:1997
Galvanic isolation EN 50178:1997
Electromagnetic compatibility NE 21:2006
Degree of protection IEC 60529:2001
Ambient conditions
Ambient temperature -20 ... 60 °C (-4 ... 140 °F)
extended ambient temperature range up to 70 °C (158 °F), refer to manual for necessary mounting conditions
Mechanical specifications
Degree of protection IP20
Connection screw terminals , max. 2.5 mm2
Mass approx. 150 g
Dimensions 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) (W x H x D) , housing type B2
Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001



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