SMART Transmitter Power Supply KFD2-STC5-Ex2

Datasheet excerpt: Technical data of  KFD2-STC5-Ex2

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		≤ 1.4 W at maximum load
Power consumption		≤ 2.6 W at maximum load
Input
Connection side		field side
Connection		terminals 1+, 2-, 3; 4+, 5-, 6
Input signal		0/4 ... 20 mA
Input resistance		max. 265 Ω terminals 2-, 3; 5-, 6 , max. 330 Ω terminals 1+, 3; 4+, 6
Available voltage		≥ 16 V at 20 mA , terminals 1+, 3; 4+, 6
Output
Connection side		control side
Connection		terminals 7+, 8-, 9-; 10+, 11-, 12- (sink) terminals 7-, 8+, 9+; 10-, 11+, 12+ (source) see additional information
Load		0 ... 600 Ω
Output signal		0/4 ... 20 mA (overload > 25 mA)
Ripple		max. 50 µA rms
External supply (loop)		2 ... 30 V DC
Transfer characteristics
Deviation		at 20 °C (68 °F), 0/4 ... 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: band width with 1 Vpp signal 0 ... 7.5 kHz (-3 dB) safe area to hazardous area: band width with 1 VSS 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
Output/Output		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 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 200 g
Dimensions		20 x 124 x 115 mm (0.8 x 4.9 x 4.5 inch) , 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 2031X
	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-; 4+, 6-
	Voltage Uo	26.2 V
	Voltage Uq	27.25 V
	Current Io	93 mA
	Power Po	634 mW
Equipment		terminals 2-, 3+; 5-, 6+
	Voltage Ui	30 V
	Current Ii	115 mA
	Power Pi	max 1 W
	Voltage Uo	2 V
	Current Io	8.5 mA
	Power Po	4.3 mW
Equipment		terminals 1+, 2/3-; 4+, 5/6-
	Voltage Uo	26.2 V
	Voltage Uq	27.25 V
	Current Io	115 mA
	Power Po	784 mW
Certificate		CML 17 ATEX 3030X
	Marking	II 3G Ex ec IIC T4 Gc
Galvanic isolation
	Input/Output	safe electrical isolation acc. to IEC/EN 60079-11:2012, voltage peak value 375 V
	Input/power supply	safe electrical isolation acc. to IEC/EN 60079-11:2012, voltage peak value 375 V
Directive conformity
	Directive 2014/34/EU	EN 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-7:2015
International approvals
UL approval
	Control drawing	116-0439 (cULus)
IECEx approval		IECEx CML 17.0016X
	Approved for	[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.
Accessories
Optional accessories		- power feed module KFD2-EB2(.R4A.B)(.SP) - universal power rail UPR-03(-M)(-S) - profile rail K-DUCT-BU(-UPR-03)

Documents: KFD2-STC5-Ex2

CAD+CAE: KFD2-STC5-Ex2

Approvals+Certificates: KFD2-STC5-Ex2

Associated Products: KFD2-STC5-Ex2

Accessories
KFD2-EB2 Power Feed Module Interface for Power Rail, Supply current ≤ 4 A, Replaceable fuse, Relay contact output, reversible, LED status indicationpa
KFD2-EB2.R4A.B Redundant Power Feed Module Interface for Power Rail, Used for redundant configuration, Supply current ≤ 4 A, Replaceable fuse, Relay contact output, reversible, LED status indicationpa
UPR-03 Universal Power Rail 35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 2 m (6 foot), simple to customize to application space, Eliminates daisy-chainspa
UPR-03-S Universal Power Rail 35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 0.8 m (2.6 ft), simple to customize to application space, Eliminates daisy-chainspa
KFD2-EB2.R4A.B.SP Redundant Power Feed Module Interface for Power Rail, Used for redundant configuration, Supply current ≤ 4 A, Replaceable fuse, Relay contact output, reversible, LED status indication, Connection via spring terminals with push-in connection technologypa
KFD2-EB2.SP Power Feed Module Interface for Power Rail, Supply current ≤ 4 A, Replaceable fuse, Relay contact output, reversible, LED status indication, Connection via spring terminals with push-in connection technologypa
UPR-03-M Universal Power Rail 35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 1.6 m (5 foot), simple to customize to application space, Eliminates daisy-chainspa
K-DUCT-BU Profile Rail Cable trunking is integrated in the mounting profile, Safe spacious separation of safe and hazardous signals, No additional cable guides necessary, Standard length 1.8 m (5.8 ft), simple to customize to application space, With mounting aidspa
K-DUCT-BU-UPR-03 Profile Rail Cable trunking with integrated Power Rail UPR-03, Safe spacious separation of safe and hazardous signals, No additional cable guides necessary, Provides DC supply voltage to all equipped K-System modules, Standard length 1.8 m (5.8 ft), simple to customize to application space, With end caps UPR-E, cover and mounting aidspa

Function: KFD2-STC5-Ex2

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.

The device provides a sink mode or a source mode output on the safe area terminals.

The device has an internal resistor. Use this resistor if the HART communication resistance in the control circuit is too low.

Test sockets for the connection of HART communicators are integrated into the terminals of the device.