Pepperl Fuchs KFD2-ER-1.6 User manual

Conductivity Switch Amplifier

KFD2-ER-1.6

<1-channel signal conditioner

<24 V DC supply (Power Rail)

<Level sensing input

<Adjustable range 5 kΩ ... 150 kΩ

<Relay contact output

<Minimum/maximum control

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

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<![endif]>Release date: 2020-10-05 Date of issue: 2020-10-05 Filename: 096864_eng.pdf

	KFD2-ER-1.6
2
	7
3	8
	9
1

100 %

0 %

								11+	24 V DC
								12-
			24VDC
	POWER RAIL
Technical Data
General specifications
Signal type			Digital Input
Supply
Connection			Power Rail or terminals 11+, 12-
Rated voltage	Ur		20 ... 30 V DC
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
			on/off control system: terminals 1, 3

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

Pepperl+Fuchs Group	USA: [phone]	Germany: [phone]	Singapore: [phone]	1
www.pepperl-fuchs.com	[e-mail]	[e-mail]	[e-mail]

	Conductivity Switch Amplifier			KFD2-ER-1.6
		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 Veff
		Input/power supply		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
		Output/power supply		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
		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 mm2
		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
<![if ! IE]> <![endif]>eng.pdf				when power is applied. The relay is deactivated when the limit is reached.
		General information
<![if ! IE]> <![endif]>_		Supplementary information		Statement of Conformity, Declaration of Conformity, Attestation of Conformity and
<![if ! IE]> <![endif]>096864
				instructions have to be observed where applicable. For information see www.pepperl-
<![if ! IE]> <![endif]>Release date: 2020-10-05 Date of issue: 2020-10-05 Filename:				fuchs.com.

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

	Pepperl+Fuchs Group	USA: [phone]	Germany: [phone]	Singapore: [phone]	2
	www.pepperl-fuchs.com	[e-mail]	[e-mail]	[e-mail]