Serviceline Information


  • 1-channel signal conditioner
  • 24 V DC supply (Power Rail)
  • Input 2-wire and 3-wire transmitters and 2-wire current sources
  • Output 0/4 mA ... 20 mA
  • Accuracy 0.1 %
  • Up to SIL2 acc. to IEC 61508

Download the complete datasheet as a PDF


Datasheet excerpt: Technical data of KFD2-CR4-1

Product Description
Input 0/4 mA ... 20 mA
Output 0/4 mA ... 20 mA or
0/2 V ... 10 V
General specifications
Signal typeAnalog input
Supply
ConnectionPower Rail or terminals 14+, 15-
Rated voltage20 ... 35 V DC
Ripplewithin the supply tolerance
Power consumption1.6 W
Input
Connectionterminals 1+, 2-, 3-
Input signal0/4 ... 20 mA
Input resistance≤ 64 Ω terminals 2-, 3 ; ≤ 500 Ω terminals 1+, 3 (250 Ω load)
Available voltage≥ 15.7 V at 20 mA terminals 1+, 3
Ripple50 mV ss at 20 mA
Output
Connectionterminals 7-, 8+, 9
Load0 ... 800 Ω
Output signal0/4 ... 20 mA
Ripplemax. 50 µA rms
Transfer characteristics
Deviationat 20 °C (68 °F), 0/4 ... 20 mA
≤ 10 µA incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage
Rise time20 µs
Settling time200 µs
De-energized delay20 µs
Directive conformity
Electromagnetic compatibility
Directive 2004/108/ECEN 61326-1:2006
Conformity
Insulation coordinationEN 50178
Electrical isolationEN 50178
Electromagnetic compatibilityNE 21
Degree of protectionIEC 60529
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Massapprox. 150 g
Dimensions20 x 119 x 115 mm (0.8 x 4.7 x 4.5 in) , housing type B2

Documents: KFD2-CR4-1

Instructions, short instructions, safety informationLanguageFile TypeFile Size
System Description Signal Conditioners K-systemENGPDF694 KB
Systembeschreibung Signaltrenner K-SystemGERPDF698 KB
Systembeschreibung Signaltrenner K-System/System Description Signal Conditioners K-systemRUSPDF3736 KB
Functional Safety ManualENGPDF557 KB

CAD+CAE: KFD2-CR4-1

CADFile TypeFile Size
Abmessungszeichnung 2D (DXF)/Dimension drawing 2D (DXF)ZIP507 KB
ePLAN-Makros K-System-Geräte (EMA)/ePLAN macros K-System devices (EMA)ZIP17983 KB
Abmessungszeichnung 3D/Dimension drawing 3DIGS209 KB
Abmessungszeichnung 3D/Dimension drawing 3DSTP179 KB

Approvals+Certificates: KFD2-CR4-1

CertificatesCertificate No.File TypeFile Size
exida Functional Safety AssessmentP+F 05/09-21 R024PDF349 KB
Russia VNIIMS Pattern ApprovalSG.C.34.004A No 34621/1PDF176 KB
Det Norske Veritas MarineA-13714PDF41 KB
Bureau Veritas MarineBV 22614PDF91 KB