KFD2-PT2-EX1 Potenciometro konverteris

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.

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 (-20 °C ≤ Tamb ≤ 60 °C)
	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.