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KFD2-UT2-1 Universal Temperature Converter

Key Benefits at a Glance

  • 1-channel signal conditioner
  • 24 V DC supply (Power Rail)
  • Thermocouple, RTD, potentiometer or voltage input
  • Current output 0/4 mA ... 20 mA
  • Sink or source mode
  • Configurable by PACTware
  • Line fault (LFD) and sensor burnout detection
  • Up to SIL 2 acc. to IEC/EN 61508 / IEC/EN 61511

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Product photo: Universal Temperature Converter KFD2-UT2-1
Product photo: Universal Temperature Converter KFD2-UT2-1
Product Compliance: Europe – CE
Functional Safety: Safety Integrity Level - 2
Note

All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

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DatasheetFunctionClassificationInformative LiteratureProduct DocumentationDesign / SimulationApprovalsSoftwareRelated Products

Technical data of KFD2-UT2-1

Signal typeAnalog input
Safety Integrity Level (SIL)SIL 2
Connectionterminals 14+, 15- or power feed module/Power Rail
Rated voltageUr20 ... 30 V DC
Ripplewithin the supply tolerance
Power dissipation≤ 0.98 W
Power consumptionmax. 0.98 W
Programming interfaceprogramming socket
Connection sidefield side
Connectionterminals 1, 2, 3, 4
RTDtype Pt10, Pt50, Pt100, Pt500, Pt1000 (EN 60751: 1995)
type Pt10GOST, Pt50GOST, Pt100GOST, Pt500GOST, Pt1000GOST (6651-94)
type Cu10, Cu50, Cu100 (P50353-92)
type Ni100 (DIN 43760)
Measuring currentapprox. 200 µA with RTD
Types of measuring2-, 3-, 4-wire connection
Lead resistancemax. 50 Ω per line
Measurement loop monitoringsensor breakage, sensor short-circuit
Thermocouplestype B, E, J, K, N, R, S, T (IEC 584-1: 1995)
type L (DIN 43710: 1985)
type TXK, TXKH, TXA (P8.585-2001)
Cold junction compensationexternal and internal
Measurement loop monitoringsensor breakage
Potentiometer0 ... 20 kΩ (2-wire connection), 0.8 ... 20 kΩ (3-wire connection)
Voltageselectable within the range -100 ... 100 mV
Input resistance≥ 1 MΩ (-100 ... 100 mV)
Connection sidecontrol side
Connectionoutput I: terminal 7: source (-), sink (+), terminal 8: source (+), terminal 9: sink(-)
OutputAnalog current output
Current range0 ... 20 mA or 4 ... 20 mA
Fault signaldownscale 0 or 2 mA, upscale 21.5 mA (acc. NAMUR NE43)
Sourceload 0 ... 550 Ω
open-circuit voltage ≤ 18 V
SinkVoltage across terminals 5 ... 30 V. If the current is supplied from a source > 16.5 V,
series resistance of ≥ (V - 16.5)/0.0215 Ω is needed, where V is the source voltage.
The maximum value of the resistance is (V - 5)/0.0215 Ω.
Deviation
After calibrationPt100: ± (0.06 % of measurement value in K + 0.1 % of span + 0.1 K (4-wire connection))
thermocouple: ± (0.05 % of measurement value in °C + 0.1 % of span + 1 K (1.2 K for types R and S)) , includes ± 0.8 K fault of the cold junction compensation (CJC)
mV: ± (50 µV + 0.1 % of span)
potentiometer: ± (0.05 % of full scale + 0.1 % of span, (excludes faults due to lead resistance))
Influence of ambient temperaturePt100: ± (0.0015 % of measurement value in K + 0.006 % of span)/K ΔTamb*)
thermocouple: ± (0.02 K + 0.005 % of measurement value in °C + 0.006 % of span)/K ΔTamb*)), influence of cold junction compensation (CJC) included
mV: ± (0.01 % of measurement value + 0.006 % of span)/K ΔTamb*)
potentiometer: ± 0.006 % of span/K ΔTamb*)
*) ΔTamb = ambient temperature change referenced to 23 °C (296 K)
Influence of supply voltage< 0.01 % of span
Influence of load≤ 0.001 % of output value per 100 Ω
Reaction timeworst case value (sensor breakage and/or sensor short circuit detection enabled)
mV: 1 s, thermocouples with CJC: 1.1 s, thermocouples with fixed reference temperature: 1.1 s, 3- or 4-wire RTD: 920 ms, 2-wire RTD: 800 ms, Potentiometer: 2.05 s
Input/Other circuitsbasic insulation according to IEC 61010-1, rated insulation voltage 300 Veff
Output/supply, programming inputfunctional insulation, rated insulation voltage 50 V AC
There is no electrical isolation between the programming input and the supply.
The programming cable provides galvanic isolation so that ground loops are avoided.
Display elementsLEDs
Configurationvia PACTware
Labelingspace for labeling at the front
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Electromagnetic compatibilityNE 21:2006
Degree of protectionIEC 60529:2001
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 130 g
Dimensions20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) (W x H x D) , housing type B2
Height119 mm
Width20 mm
Depth115 mm
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.
General Notes

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