Quick Detail of SMART Transmitter Power Supply

Manufacturer : Pepperl+Fuchs
Product No. : KFD2-STC5-EX1
Product type : SMART Transmitter Power Supply
Signal type : Analog input
Safety Integrity Level (SIL) : SIL 2
Supply Connection : Power Rail or terminals 14+, 15-
Rated voltage Ur : 18 ... 30 V DC
Power dissipation : = 1 W at maximum load
Power consumption : = 1.6 W at maximum load
Input Connection : field side, terminals 1+, 2-, 3
Input signal : 0/4 ... 20 mA
Weight : 0.15 Kg
Shipping weight : 1.5 Kg

Description of SMART Transmitter Power Supply

This isolated barrier is used for intrinsic safety applications.
The device supplies 2-wire and 3-wire SMART transmitters, and can also be used with 2-wire SMART current sources.
It transfers the analog input signal to the safe area as an isolated current value.
Digital signals may be superimposed on the input signal in the hazardous or non-hazardous area and are transferred bi-directionally.

Specification of SMART Transmitter Power Supply

General specifications
Signal type		Analog input
Functional safety related parameters
Safety Integrity Level (SIL)		SIL 2
Supply
Connection		Power Rail or terminals 14+, 15-
Rated voltage		18 ... 30 V DC
Ripple		within the supply tolerance
Power dissipation		≤ 1 W at maximum load
Power consumption		≤ 1.6 W at maximum load
Input
Connection side		field side
Connection		terminals 1+, 2-, 3
Input signal		4 ... 20 mA
Open circuit voltage/short-circuit current		terminals 1+, 3: 23 V / 25 mA
Input resistance		max. 265 Ω terminals 2-, 3 , max. 330 Ω terminals 1+, 3
Available voltage		≥ 16 V at 20 mA ; ≥ 20 V at 4 mA , terminals 1+, 3
Output
Connection side		control side
Connection		terminals 7+, 8-, 9- (sink) terminals 7-, 8+, 9+ (source) see additional information
Load		0 ... 800 Ω
Output signal		4 ... 20 mA (overload > 25 mA)
Ripple		max. 50 µA rms
External supply (loop)		2 ... 30 V DC If the external voltage is > 19 V, a load ≥ ((V - 19) / 0.02) Ω is required. V represents the value of the external voltage. The internal 250 Ω resistor at terminal 9 can be used as a load.
Transfer characteristics
Deviation		at 20 °C (68 °F), 4 ... 20 mA ≤ 10 µA incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage
	Influence of ambient temperature	≤ 0.25 µA/K
Frequency range		field side into the control side: bandwidth with 0.5 Vpp signal 0 ... 7.5 kHz (-3 dB) control side into the field side: bandwidth with 0.5 Vpp signal 0.3 ... 7.5 kHz (-3 dB)
Settling time		200 µs
Rise time/fall time		100 µs
Galvanic isolation
Output/power supply		functional insulation, rated insulation voltage 50 V AC
Indicators/settings
Display elements		LED
Labeling		space for labeling at the front
Directive conformity
Electromagnetic compatibility
	Directive 2014/30/EU	EN 61326-1:2013 (industrial locations)
Conformity
Electromagnetic compatibility		NE 21:2012 EN 61326-3-2:2008
Degree of protection		IEC 60529:2001
Protection against electrical shock		UL 61010-1:2012
Ambient conditions
Ambient temperature		-20 ... 70 °C (-4 ... 158 °F)
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 150 g
Dimensions		20 x 124 x 115 mm (0.8 x 4.9 x 4.5 inch) (W x H x D) , housing type B2
Mounting		on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificate		CML 17 ATEX 2029X
	Marking	II (1)G [Ex ia Ga] IIC II (1)D [Ex ia Da] IIIC I (M1) [Ex ia Ma] I
	Input	[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
Supply
	Maximum safe voltage	250 V (Attention! The rated voltage can be lower.)
Equipment		terminals 1+, 3-
	Voltage	26.2 V
	Voltage	27.25 V
	Current	93 mA
	Power	634 mW
Equipment		terminals 2-, 3
	Voltage	30 V
	Current	115 mA
	Power	max 1 W
	Voltage	2 V
	Current	8.5 mA
	Power	4.3 mW
Equipment		terminals 1+, 2 / 3-
	Voltage	26.2 V
	Voltage	27.25 V
	Current	115 mA
	Power	784 mW
Certificate		CML 17 ATEX 3028X
	Marking	II 3G Ex ec IIC T4 Gc
Galvanic isolation
	Input/Output	safe electrical isolation acc. to IEC/EN 60079-11:2007, voltage peak value 375 V
	Input/power supply	safe electrical isolation acc. to IEC/EN 60079-11:2007, voltage peak value 375 V
Directive conformity
	Directive 2014/34/EU	EN IEC 60079-0:2018 , EN 60079-7:2015+A1:2018 , EN 60079-11:2012
International approvals
UL approval		E106378
	Control drawing	116-0439 (cULus)
IECEx approval
	IECEx certificate	IECEx CML 17.0015X
	IECEx marking	[Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I , Ex ec IIC T4 Gc

Feature of SMART Transmitter Power Supply

1-channel isolated barrier
24 V DC supply (Power Rail)
Input 2-wire and 3-wire SMART transmitters and 2-wire SMART current sources
Output 4 mA ... 20 mA current sink/current source
Terminals with test points
Up to SIL 2 acc. to IEC/EN 61508

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Frequently Asked Questions:

Q: Does your goods are new and original?

A: Yes, they are new and original.

Q: How long warranty?

A: One-year warranty.

Q: Does any certificates can be provided?

A: Yes, it depends on what product you request, please check details with us.