Serviceline Industrial Sensors
Serviceline Explosion Protection

Strain Gauge Converter KFD2-WAC2-1.D

  • 1-channel signal conditioner
  • 24 V DC supply (Power Rail)
  • Strain gauge input (full or half bridge)
  • Output 0 mA ... ± 20 mA or 0 V ... ± 10 V
  • 2 relay contact outputs
  • Programmable high/low alarm
  • Configurable by PACTware or keypad
  • RS-485 interface
  • Line fault detection (LFD)

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of KFD2-WAC2-1.D

Product Description
24 V DC
General specifications
Signal typeAnalog input
ConnectionPower Rail or terminals 23+, 24-
Rated voltage20 ... 35 V DC
Ripplewithin the supply tolerance
Power consumptionmax. 3 W
ConnectionPower Rail or terminals 19+, 20 GND, 21-
Programming interfaceprogramming socket
Field circuit
Connectionterminals 1+, 2-, 3+, 4-, 5+, 6-
Lead resistancemax. 25 Ω per line
Input I
Connectionterminals 1+, 2-
Sensor supply1 ... 5 V
Connectionterminals 3+, 4- (supply); 5+, 6- (signal)
Short-circuit current50 mA
Load≥ 116 Ω up to 5V, ≥ 85 Ω up to 4V
Connection sidefield side
ConnectionInput I: terminals 1+, 2-; Input II: terminals 13+, 14-; Input III: terminals 15+, 14-
Programmable Tare0 ... 500 % of span
Input ISignal, analog
Input signal-100 ... 100 mV
Input resistance> 1 MΩ for voltage measurement
Input II, IIItare adjustment, calibration and zero
Open circuit voltage/short-circuit current18 V / 5 mA
Active/PassiveI > 4 mA/I < 1.5 mA
Connection sidecontrol side
ConnectionOutput I: terminals 10, 11, 12; Output II: terminals 16, 17, 18; Output III: terminals 7-, 8+, 9-
Output I, IIRelay output
Contact loading253 V AC/2 A/500 VA/cos φ min. 0.7; 40 V DC/2 A resistive load
Mechanical life2 x 107 switching cycles
Output IIIAnalog output
Current range-20 ... 20 mA
Loadmax. 550 Ω
Analog voltage output0 ... ± 10 V; output resistance 500 Ω (bridge between terminal 7 and 9)
Analog current output0 ... ± 20 mA or 4 ... 20 mA; load 0 ... 550 Ω (terminals 7 and 8)
Line fault detectiondownscale -21.5 mA (-10.75 V) or 2 mA (1 V), upscale 21.5 mA (10.75 V)
Collective error messagePower Rail
Transfer characteristics
Resolution/accuracy≤ ± 0.05 % incl. non-linearity and hysteresis
Temperature effect ≤ ± 0.01 %/K
Reaction time300 ... 850 ms
Galvanic isolation
Input I/other circuitsreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output I, II against eachotherreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output I, II/other circuitsreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output III/Input II, IIInot available
Output III/Programming socketnot available
Other circuits from each otherfunctional insulation, rated insulation voltage 50 Veff
Display elementsLEDs , display
Control elementsControl panel
Configurationvia operating buttons
via PACTware
Labelingspace for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2004/108/ECEN 61326-1:2006
Low voltage
Directive 2006/95/ECEN 61010-1:2010
Electromagnetic compatibilityNE 21:2006
Degree of protectionIEC 60529:2001
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 250 g
Dimensions40 x 119 x 115 mm (1.6 x 4.7 x 4.5 inch) , housing type C3
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
International approvals
UL approvalE223772
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see

Documents: KFD2-WAC2-1.D

ManualsLanguageFile TypeFile Size
Installation and configuration guide Device Type Manager (DTM)ENGPDF8665 KB
Manual KF**-WAC2-(Ex)1.DENGPDF1799 KB
Manual Signal Conditioners K-SystemENGPDF694 KB
Manuel KF**-WAC2-(Ex)1.DFRAPDF2540 KB
Handbuch KF**-WAC2-(Ex)1.DGERPDF2210 KB
Handbuch Signaltrenner K-SystemGERPDF698 KB
Installations- und Konfigurationsanleitung Device Type Manager (DTM)GERPDF8463 KB
Manual Signal Conditioners K-SystemRUSPDF3736 KB
Instruction leaflets
Operator card KF**-WAC2-**1.D / Bedienkarte KF**-WAC2-**1.DALLPDF928 KB
Instructions, short instructions, safety information
ИнструкцииBULPDF53 KB
Návod k poużitíCZEPDF47 KB
Instruktions manualDANPDF47 KB
Instruction manualENGPDF41 KB
KasutusjuhendESTPDF44 KB
KäyttöohjeFINPDF44 KB
Manuel d'instructionsFRAPDF79 KB
BetriebsanleitungGERPDF43 KB
Οδηγίες χρήσηςGREPDF55 KB
HandleidingHOLPDF56 KB
Instruction manual / BetriebsanleitungHRVPDF55 KB
Használati útmutatóHUNPDF55 KB
Manuale di istruzioniITAPDF77 KB
Lietošanas pamācībaLAVPDF54 KB
Instrukciju vadovasLITPDF55 KB
Instrukcja obsługiPOLPDF57 KB
Manual de instruçõesPORPDF56 KB
Manual de utilizareRONPDF56 KB
Návod na poużitieSLKPDF115 KB
Manual de instruccionesSPAPDF79 KB

Approvals+Certificates: KFD2-WAC2-1.D

CertificatesCertificate No.File TypeFile Size
Belarus Pattern ApprovalNr. 11709PDF15640 KB
CA ULE223772 cUL (NRAQ7)LINK---
Russia VNIIMS Pattern ApprovalDE.C.34.004.A No.56757PDF6207 KB

Software: KFD2-WAC2-1.D

Device type managersRelease InfoFile TypeFile Size
DTM Collection Interface Technology 2 / DTM Collection Interface Technology KB
Software Tools
PACTware 4.1 SP5 / PACTware 4.1 SP54.1.0.52ZIP50675 KB
PACTware 5.0 / PACTware KB

Associated Products: KFD2-WAC2-1.D

For K-, E- and H-System, Frame application, like e. g. PACTware, must be installed separatelypa
Universal DTM host platform, For all DTMs of Pepperl+Fuchs, Approved FDT/DTM technology, Free of charge, Internet download possiblepa