Intrinsic Safety Barriers

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Potentiometer Converter KFD2-PT2-Ex1

1-channel isolated barrier
24 V DC supply (Power Rail)
Potentiometer input
Voltage output 0 V ... 10 V
Lead resistance compensation adjustment
Accuracy 0.05 %
Up to SIL 2 acc. to IEC/EN 61508

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571.00 USD Unit Price

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Technical Data
Details
Informative Literature
Product Documentation
Design / Simulation
Approvals
Associated Products
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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-PT2-Ex1

General specifications
Signal type		Analog input
Functional safety related parameters
Safety Integrity Level (SIL)		SIL 2
Supply
Connection		Power Rail or terminals 11+, 12-
Rated voltage		20 ... 35 V DC
Ripple		within the supply tolerance
Power dissipation		0.5 W
Power consumption		0.6 W
Input
Connection side		field side
Connection		terminals 4-, 5-, 3+, 2+, 1+
Potentiometer
	Types of measuring	3-, 4-, 5-wire technology
	Nominal resistance	800 Ω to 100 kΩ
	Supply voltage	approx. 4.7 V
Lead resistance		5 % of the potentiometer resistance (adjustable)
Output
Connection side		control side
Connection		terminals 7-, 8+
Voltage output		0 ... 10 V
Output resistance		max. 30 Ω
Transfer characteristics
Accuracy		0.05 %
Deviation
	Linearity	≤ ± 5 mV
	Influence of ambient temperature	≤ 0.5 mV/K
Rise time		10 to 90 % ≤ 8 ms; 10 to 90 % within 1 % of span ≤ 25 ms
Galvanic isolation
Output/power supply		functional insulation, rated insulation voltage 50 V AC
Indicators/settings
Control elements		potentiometer
Configuration		via potentiometer
Directive conformity
Electromagnetic compatibility
	Directive 2014/30/EU	EN 61326-1:2013 (industrial locations)
Conformity
Electromagnetic compatibility		NE 21:2006
Degree of protection		IEC 60529:2001
Protection against electrical shock		UL 61010-1
Ambient conditions
Ambient temperature		-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 120 g
Dimensions		20 x 107 x 115 mm (0.8 x 4.2 x 4.5 inch) (W x H x D) , housing type B1
Mounting		on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificate		BAS 00 ATEX 7171
	Marking	II (1)G [Ex ia Ga] IIC , II (1)D [Ex ia Da] IIIC , I (M1) [Ex ia Ma] I
	Voltage	10.4 V
	Current	31.4 mA
	Power	82 mW
Supply
	Maximum safe voltage	250 V (Attention! The rated voltage can be lower.)
Output
	Maximum safe voltage	250 V (Attention! The rated voltage can be lower.)
Certificate		TÜV 02 ATEX 1797 X
	Marking	II 3G Ex nA II T4
Galvanic isolation
	Input/Output	safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
	Input/power supply	safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity
	Directive 2014/34/EU	EN IEC 60079-0:2018+AC:2020 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
FM approval
	Control drawing	116-0129
UL approval
	Control drawing	116-0173 (cULus)
IECEx approval
	IECEx certificate	IECEx BAS 10.0060 IECEx BAS 10.0061X
	IECEx marking	[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I Ex ec IIC T4 Gc
General information
Supplementary information		Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Classifications

System	Classcode
ECLASS 13.0	27210190
ECLASS 12.0	27210190
ECLASS 11.0	27210190
ECLASS 10.0.1	27210190
ECLASS 9.0	27210190
ECLASS 8.0	27210190
ECLASS 5.1	27210107
ETIM 9.0	EC002476
ETIM 8.0	EC002476
ETIM 7.0	EC002476
ETIM 6.0	EC002476
ETIM 5.0	EC001485
UNSPSC 12.1	32101514

Details: KFD2-PT2-Ex1

Function

This isolated barrier is used for intrinsic safety applications. It provides the source voltage to a potentiometer and transfers its wiper position from hazardous areas to safe areas. It then converts the signal to a 0 V ... 10 V voltage output (consistant with 0 mA ... 20mA current output, see for example KFD2-PT2-Ex1-4).

The unit can be used in a 3-, 4-, or 5-wire configuration depending on the required measurement accuracy. Terminals 2 and 5 are used as the sense line for the potentiometer lead resistance compensation in a 5-wire configuration.

The barrier’s potentiometer can be used to compensate for lead resistance up to 5 % of the hazardous area potentiometer value.

Informative Literature: KFD2-PT2-Ex1

Literature	Language	File Type	File Size
Application Report - Energy Generation in Wastwater Treatment Plants	ENG	PDF	532 KB
Application Report - Generating Electricity in Coal-Fired Power Plants	ENG	PDF	412 KB
Application Report - Screening Systems in Sewage Treatment Plants	ENG	PDF	577 KB
Application Report - Sicherer Brennstofftransport in Kohlekraftwerken	ENG	PDF	391 KB
Application Report - Water Inlet in Wastewater Treatment Plants	ENG	PDF	526 KB

Product Documentation: KFD2-PT2-Ex1

Safety and Security Documentation	Language	File Type	File Size
Instruction manual	ENG	PDF	170 KB
Manuals
Manual	ENG	PDF	3685 KB

Design / Simulation: KFD2-PT2-Ex1

CAD	Language	File Type	File Size
CAD 3-D / CAD 3-D	ALL	STP	1854 KB
CAD Portal / CAD Portal	ALL	LINK	---
CAE
EPLAN macro EDZ / EPLAN Makro EDZ	ALL	EDZ	57 KB

Approvals: KFD2-PT2-Ex1

Certificates	Certificate No.	Language	File Type	File Size
Australia Test Safe	ANZEx 17.3006X	ALL	PDF	6788 KB
Baseefa IECEx Certificate of Conformity	IECEx BAS 10.0060	ALL	LINK	---
Baseefa IECEx Certificate of Conformity	IECEx BAS 10.0061X	ALL	LINK	---
Canada UL cUL	E106378 cUL (QUZW7)	ALL	LINK	---
China SITIIAS CCC Ex Certificate	2021322316004108 (Singapore)	ALL	PDF	1341 KB
Europe Baseefa II (1) D ATEX Category (M1) ATEX Category (1) D ATEX Category (1) G	BAS 00 ATEX 7171	ALL	PDF	3144 KB
Europe TUV Nord ATEX Category 3 G	TÜV 02 ATEX 1797X	ALL	PDF	1285 KB
India PESO (India) CCOE	A/P/HQ/KA/104/5776 (P477234)	ALL	PDF	528 KB
Japan TIIS	TC16186	ALL	PDF	1875 KB
Korea KOSHA	19-AV4BO-0435	ALL	PDF	72 KB
Pepperl+Fuchs Functional Safety Assessment	FS-0058PF-20A	ALL	PDF	81 KB
USA Canada UL Hazardous Location Certificate of Compliance cULus UL E106378	CoC 20140902 - E106378 RepRef 20011030	ALL	PDF	429 KB
USA FM	CoC 1Z2A1.AX	ALL	PDF	78 KB
USA UL	E106378 UL (QUZW)	ALL	LINK	---
Ukraine SERTIS Ex	SC 21.0646 X	ALL	PDF	12351 KB
United Kingdom Baseefa UKEX Category (1) D UKEX Category (1) G UKEX Category (M1)	BAS21UKEX0427	ALL	PDF	303 KB
Control Drawings
Control drawing UL / Control drawing UL		ALL	PDF	1092 KB
Control drawing FM / Control drawing FM		ALL	PDF	58 KB
Declaration of Conformity
EU-Declaration of conformity	TDOC-0055DENG	ENG	PDF	184 KB
UK-Declaration of conformity	TDOC-7081AENG	ENG	PDF	153 KB

Associated Products: KFD2-PT2-Ex1

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Pepperl+Fuchs Inc.
1600 Enterprise Parkway
Twinsburg, OH 44087
United States of America
sales@us.pepperl-fuchs.com
phone +1 330 425-3555

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. Pepperl+Fuchs does not sell personal data.