Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Group Tel.: Germany +49 621 776-0 USA +1 330 4253555 Singapore +65 67799091 Internet http://www.pepperl-fuchs.com

KFD2-SCD-Ex1.LK

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SMART repeater

Output EEx ia IIC

Safe

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SMART communicator

SMART communicator

Power Rail

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LB/LK

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250

Composition

Connection

1-channel Output EEx ia IIC Device installation permissible in

zone 2 Lead breakage (LB) monitoring and

short-circuit (SC) monitoring Suitable for HART communication

(galvanically isolated) EMC acc. to NAMUR NE 21 Up to SIL2 acc. to IEC 61508

KFD2-SCD-Ex1.LK

A 4 mA ... 20 mA current is transferred from the safe area to the hazardous area. Digital signals can be superimposed on the analogue values in either the hazardous area or the safe area. A bidirectional communication between a SMART-(HART) device in the field and the corresponding SMART-communicator in the safe area is possible. When the current source has a low AC impedance, it may be important to connect it to terminals 7- and 9+ in order to obtain a fault free HART transmission. In order to facilitate the connection of a hand held terminal to the circuit, the KFD2-SCD-Ex1.LK is usually delivered with KFD-STP-** device connectors. The applicable test jacks are integrated into these connectors.

Lead monitoring, input characteristicsNormal operation:100 ... 700 field currentLead short circuit:up to < 50 loadLead breakage:up to > 2 k load when ION = 20 mAThe range above a load of 700 is not designated for transferring signals. In case of short circuit or lead breakage in the field circuit the input resistance is increased to > 100 k. The field current decreases to < 1 mA, and the red LED flashes. During normal operation the DC input voltage is lower than 4 V (200 at 20 mA respectively). The AC input impedance corresponds to the output impedance of the unit.

Function

2Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Group Tel.: Germany +49 621 776-0 USA +1 330 4253555 Singapore +65 67799091 Internet http://www.pepperl-fuchs.com

KFD2-SCD-Ex1.LKTechnical dataR

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SupplyConnection Power Rail or terminals 11+, 12-Rated voltage 20 ... 35 V DCRipple within the supply tolerancePower loss 1.3 WPower consumption 1.3 WInputConnection terminals 7-, 8+Voltage drop Ud approx. 4 V or internal resistance 200 at 20 mAInput resistance > 100 k, when wiring resistance in the field < 50 or > 800 at 20 mACurrent 4 ... 20 mA limited to approx. 25 mAOutputConnection terminals 1+, 2-Current 4 ... 20 mAVoltage 14 V at 20 mALoad 100 ... 700 Transfer characteristicsDeviation

After calibration at 293 K (20 C): 0.1 % incl. non-linearity and hysteresisInfluence of ambient temperature 20 p.p.m/K

Rise time < 100 s (bounce from 10 ... 90 %)Electrical isolationInput/power supply basic insulation acc. to EN 50178, rated insulation voltage of 50 V ACDirective conformityElectromagnetic compatibility

Directive 89/336/EC EN 50081-2, EN 50082-2ConformityInsulation coordination EN 50178Electrical isolation EN 50178Electromagnetic compatibility NE 21Protection degree IEC 60529Ambient conditionsAmbient temperature -20 ... 60 C (253 ... 333 K)Mechanical specificationsProtection degree IP20Mass approx. 100 gDimensions 20 x 107 x 115 mm (0.8 x 4.2 x 4.5 in)Data for application in conjunction with hazardous areasEC-Type Examination Certificate BAS 00 ATEX 7215 , for additional certificates see www.pepperl-fuchs.com

Group, category, type of protection II (1) G D [EEx ia] IIC (-20 C Tamb 60 C)Voltage U0 25.2 VCurrent I0 93 mAPower P0 585 mW

Supply Safety maximum voltage Um 250 V rms (Attention! The rated voltage can be lower.)

Equipment Voltage Uo 25.5 VCurrent Io 93 mAPower P0 0.58 WInternal capacitance Ci 0 FInternal inductance Li 0 mH

Permissible connection values [EEx ia] Explosion group IIA IIB IICExternal capacitance 2.9 F 0.82 F 0.107 FExternal inductance 36.02 mH 17.72 mH 4.3 mH

Input Safety maximum voltage Um 250 V rms (Attention! The rated voltage can be lower.)

Statement of conformity TV 99 ATEX 1499 X , observe statement of conformityGroup, category, type of protection, temperature classification

II 3 G EEx nA II T4

Electrical isolation Input/output safe electrical isolation acc. to EN 50020, voltage peak value 375 VOutput/power supply safe electrical isolation acc. to EN 50020, voltage peak value 375 V

Directive conformity

3Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Group Tel.: Germany +49 621 776-0 USA +1 330 4253555 Singapore +65 67799091 Internet http://www.pepperl-fuchs.com

KFD2-SCD-Ex1.LKTechnical dataR

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Directive 94/9 EC EN 50014, EN 50020, EN 50021Entity parameterCertification number 4Z6A5.AXFM control drawing No. 116-0129Suitable for installation in division 2 yesConnection terminals 1, 2Input I

Voltage VOC 25.9 VCurrent It 94.5 mAExplosion group A&B C&E D, F&GMax. external capacitance Ca 0.17 F 0.52 F 1.38 FMax. external inductance La 4.04 mH 16.3 mH 33.1 mH

Safety parameterCSA control drawing LR 65756-13Control drawing No. 116-0132Connection terminals 1, 2Input I

Safety parameter 25.2 V / 280 Voltage VOC 25.2 VCurrent ISC 93 mAExplosion group A&B C&E D, F&GMax. external capacitance Ca 0.19 F 0.57 F 1.52 FMax. external inductance La 3.1 mH 16.7 mH 34 mH

EC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity and instructions have to be observed. For information see www.pepperl-fuchs.com.

Power Rail PR-03Power Rail UPR-03Power feed module KFD2-EB2...Using Power Rail PR-03 or UPR-03 the devices are supplied with 24 V DC by means of the power feed modules. If no Power Rails are used, power supply of the individual devices is possible directly via their device terminals.Each power feed module is used for fusing and monitoring groups with up to 100 individual devices. The Power Rail PR-03 is an inset component for the DIN rail. The Power Rail UPR-03 is a complete unit consisting of the electrical inset and an aluminium profile rail 35 mm x 15 mm x 2000 mm. To make electrical contact, the devices are simply engaged.The Power Rail must not be fed via the device terminals of the individual devices!

Supplementary information

Accessories