Conductivity Switch Amplifier KFD2-ER-2.W.LB

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

Datasheet
Function
Documents
CAD+CAE
Associated Products

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of KFD2-ER-2.W.LB

Product Description
24 V DC

General specifications
Signal type		Digital Input
Supply
Connection		Power Rail or terminals 14+, 15-
Rated voltage		20 ... 30 V DC
Rated current		30 ... 40 mA
Input
Connection side		field side
Connection		terminals 1, 4 (mass), 2, 5 (min), 3, 6 (max)
Control input		min./max. control system: terminals 1, 2, 3; 4, 5. 6 on/off control system: terminals 1, 3; 4, 6
Response sensitivity		1 ... 150 kΩ , adjustable via potentiometer
Output
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 V_eff
Input/power supply		basic insulation according to EN 50178, rated insulation voltage 253 V_eff
Output/power supply		basic insulation according to EN 50178, rated insulation voltage 253 V_eff
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 2004/108/EC	EN 61326-1:2006
Low voltage
	Directive 2006/95/EC	EN 50178:1997
Conformity
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)
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) , housing type B2
Mounting		on 35 mm DIN mounting rail acc. to EN 60715:2001
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.pepperl-fuchs.com.

Classifications

System	Classcode
ECLASS 11.0	27210121
ECLASS 10.0.1	27210121
ECLASS 9.0	27210121
ECLASS 8.0	27210121
ECLASS 5.1	27210121
ETIM 8.0	EC001447
ETIM 7.0	EC001447
ETIM 6.0	EC001447
ETIM 5.0	EC001485
UNSPSC 12.1	32101514

Documents: KFD2-ER-2.W.LB

Manuals	Language	File Type	File Size
Manual	ENG	PDF	3489 KB
Handbuch	GER	PDF	3506 KB
Instruction manuals
Инструкции	BUL	PDF	53 KB
Návod k poużití	CZE	PDF	47 KB
Instruktions manual	DAN	PDF	47 KB
Instruction manual	ENG	PDF	41 KB
Kasutusjuhend	EST	PDF	44 KB
Käyttöohje	FIN	PDF	44 KB
Manuel d'instructions	FRA	PDF	79 KB
Betriebsanleitung	GER	PDF	43 KB
Οδηγίες χρήσης	GRE	PDF	55 KB
Handleiding	HOL	PDF	56 KB
Instruction manual / Betriebsanleitung	HRV	PDF	55 KB
Használati útmutató	HUN	PDF	55 KB
Manuale di istruzioni	ITA	PDF	77 KB
Lietošanas pamācība	LAV	PDF	54 KB
Instrukciju vadovas	LIT	PDF	55 KB
Instrukcja obsługi	POL	PDF	57 KB
Manual de instruções	POR	PDF	56 KB
Manual de utilizare	RON	PDF	56 KB
Návod na poużitie	SLK	PDF	115 KB
Manual de instrucciones	SPA	PDF	79 KB
Manual	SWE	PDF	53 KB

CAD+CAE: KFD2-ER-2.W.LB

CAD	File Type	File Size
3-D model in IGS format / 3-D-Modell im IGS-Format	IGS	---
3-D model in STP format / 3-D-Modell im STP-Format	STP	2510 KB
CAD Portal / CAD Portal	LINK	---
EPLAN
EPLAN Data Portal / EPLAN Data Portal	LINK	---

Associated Products: KFD2-ER-2.W.LB

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Accessories

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Function: KFD2-ER-2.W.LB

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 Notes Relating to Pepperl+Fuchs Product Information

Quick Links

Pepperl+Fuchs SE
Lilienthalstraße 200
68307 Mannheim
Germany
info@de.pepperl-fuchs.com
phone +49 621 776-0

Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market. Continuous innovation, enduring quality, and steady growth have been the foundation of our success for more than 70 years. Pepperl+Fuchs employs 6,300 people worldwide and has manufacturing facilities in Germany, USA, Singapore, Hungary, Indonesia and Vietnam, most of them ISO 9001 certified.