Pepperl Fuchs KFD2-ER-1.6 User manual

Conductivity Switch Amplifier

KFD2-ER-1.6

1

2

3

7
8
9

24 V DC

11+
12-

Power Rail

24 V DC

100 %

0 %

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

KFD2-ER-1.6

1-channel signal conditioner

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24 V DC supply (Power Rail)

<

Level sensing input

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Adjustable range 5 kΩ ... 150 kΩ

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Relay contact output

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Minimum/maximum control

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Function

This signal conditioner provides the AC measuring voltage for the levelsensing 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 defined switching characteristics. An electronic holding circuit is used that
allows minimum/maximum control. Since the conductance of the media may vary, the relay response sensitivity is adjustable.
The normal output state can be reversed through the mode of operation switch S1.

Connection

Technical Data

General specifications

Signal type Digital Input

Supply

Connection Power Rail or terminals 11+, 12-

Rated voltage U

Input

Connection side field side

Connection terminals 1 (mass), 2 (min), 3 (max)

Open circuit voltage/short-circuit current approx. 10 V AC (approx. 1 Hz) / approx. 5 mA

Control input min./max. control system: terminals 1, 2, 3

Release date: 2020-10-05 Date of issue: 2020-10-05 Filename: 096864_eng.pdf

r

20 ... 30 V DC

on/off control system: terminals 1, 3

1

Conductivity Switch Amplifier KFD2-ER-1.6

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

Technical Data

Response sensitivity 5 ... 150 kΩ , adjustable via potentiometer (20 turns)

Output

Connection side control side

Connection terminals 7, 8, 9

Output 1 changeover contact

Contact loading 253 V AC/2 A/cos φ > 0.7; 40 V DC/2 A resistive load

Energized/De-energized delay approx. 1 s / approx. 1 s

Galvanic isolation

Input/Output reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V

Input/power supply reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V

Output/power supply reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V

Indicators/settings

Display elements LEDs

Control elements DIP-switch

potentiometer

Configuration via DIP switches

via potentiometer

Labeling space for labeling at the front

Directive conformity

Electromagnetic compatibility

Directive 2014/30/EU EN 61326-1:2013 (industrial locations)

Low voltage

Directive 2014/35/EU EN 61010-1:2010

Conformity

Electromagnetic compatibility NE 21:2006

Degree of protection IEC 60529:2001

Ambient conditions

Ambient temperature -20 ... 60 °C (-4 ... 140 °F)

Mechanical specifications

Degree of protection IP20

Connection screw terminals , max. 2.5 mm

2

Mass approx. 110 g

Dimensions 20 x 107 x 115 mm (0.8 x 4.2 x 4.5 inch) , housing type B1

Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001

Indication and operation

Control elements switch S1

Position I open circuit current: In the open circuit current principle, the relay becomes
active when the limit is reached.
Position II closed circuit current: In closed circuit current principle, the relay is activated
when power is applied. The relay is deactivated when the limit is reached.

General information

Supplementary information Statement of Conformity, Declaration of Conformity, Attestation of Conformity and

instructions have to be observed where applicable. For information see www.pepperl­fuchs.com.

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Release date: 2020-10-05 Date of issue: 2020-10-05 Filename: 096864_eng.pdf

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