Pepperl Fuchs KFD2-UT2-2-1 Technical Data

Universal Temperature Converter

2

KFD2-UT2-2-1

2

3

1

+

-

T

T

+

-

T

5

6

4

24 V DC

14+
15-

Power Rail

24 V DCERR

7-

8+

+

-

T

+

-

T

10-

11+

I

II

V

V

K-CJC-**

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

KFD2-UT2-2-1

2-channel signal conditioner

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24 V DC supply (Power Rail)

<

Thermocouple, RTD, potentiometer or voltage input

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Usable as signal splitter (1 input and 2 outputs)

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Voltage output 0/1 V ... 5 V

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Configurable by PACTware

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Line fault (LFD) and sensor burnout detection

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Up to SIL 2 acc. to IEC 61508/IEC 61511

<

Voltage output 0/1 V ... 5 V

Function

This signal conditioner provides the galvanic isolation between field circuits and control circuits.
The device converts the signal of a resistance thermometer, thermocouple, or potentiometer to a proportional output voltage.
The device can also be configured as a signal splitter.
The removable terminal block K-CJC-** is available as an accessory for internal cold junction compensation of thermocouples.
A fault is signalized by LEDs acc. to NAMUR NE44 and a separate collective error message output.
The device is easily configured by the use of the PACTware configuration software.
For additional information, refer to the manual and www.pepperl-fuchs.com.

Connection

Technical Data

General specifications

Signal type Analog input

Functional safety related parameters

Safety Integrity Level (SIL) SIL 2

Supply

Connection terminals 14+, 15- or power feed module/Power Rail

Rated voltage U

Ripple within the supply tolerance

Power dissipation/power consumption ≤ 0.8 W / 0.8 W

Interface

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 248763_eng.pdf

r

20 ... 30 V DC

1

Universal Temperature Converter KFD2-UT2-2-1

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

Technical Data

Programming interface programming socket

Input

Connection side field side

Connection terminals 1, 2, 3; 4, 5, 6

RTD type Pt10, Pt50, Pt100, Pt500, Pt1000 (EN 60751: 1995)

Measuring current approx. 200 µA with RTD

Types of measuring 2-, 3-wire connection

Lead resistance max. 50 Ω per line

Measurement loop monitoring sensor breakage, sensor short-circuit

Thermocouples type B, E, J, K, N, R, S, T (IEC 584-1: 1995)

Cold junction compensation external and internal

Measurement loop monitoring sensor breakage

Potentiometer 0 ... 20 kΩ (2-wire connection), 0.8 ... 20 kΩ (3-wire connection)

Voltage selectable within the range -100 ... 100 mV

Input resistance ≥ 1 MΩ (-100 ... 100 mV)

Output

Connection side control side

Voltage output 0 ... 5 V or 1 ... 5 V ; output resistance: ≤ 5 Ω ; load: ≥ 10 kΩ

Connection output I: terminals 7-, 8+

Fault signal downscale 0 V or 0.5 V, upscale 5.375 V

Transfer characteristics

Deviation

After calibration Pt100: ± (0.06 % of measurement value in K + 0.1 K (4-wire connection))

Influence of ambient temperature deviation of CJC included:

Influence of supply voltage < 0.01 % of span

Reaction time worst case value (sensor breakage and/or sensor short circuit detection enabled)

Galvanic isolation

Input/Other circuits basic insulation according to IEC 61010-1, rated insulation voltage 300 V

Output/supply, programming input functional insulation, rated insulation voltage 50 V AC

Indicators/settings

Display elements LEDs

Configuration via PACTware

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 21:2006

Degree of protection IEC 60529:2001

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 248763_eng.pdf

type Pt10GOST, Pt50GOST, Pt100GOST, Pt500GOST, Pt1000GOST (6651-94)
type Cu10, Cu50, Cu100 (P50353-92)
type Ni100 (DIN 43760)

type L (DIN 43710: 1985)
type TXK, TXKH, TXA (P8.585-2001)

output II: terminals 10-, 11+

thermocouple: ± (0.05 % of measurement value in °C + 1 K (1.2 K for types R and S))
this includes ± 0.8 K error of the cold junction compensation
mV: ± 50 µV
potentiometer: ± 0.05 % of full scale, (excludes errors due to lead resistance)
output: 1 to 5 V output: ± 4 mV from 0 to 103.1 % of span; 0 to 5 V output: ± 4 mV from

0.3 to 102.5 % of span

Pt100: ± (0.0015 % of measurement value in K + 0.006 % of span)/K ΔT
thermocouple: ± (0.02 K + 0.005 % of measurement value in °C + 0.006 % of span)/K

*)

ΔT

amb

mV: ± (0.01 % of measurement value + 0.006 % of span)/K ΔT
potentiometer: ± 0.006 % of span/K ΔT

*)

ΔT

= ambient temperature change referenced to 23 °C (296 K)

amb

amb

*)

amb

*)

amb

*)

mV: 1.2 s, thermocouples with CJC: 1.4 s, thermocouples with fixed ref. temp: 1.4 s, 3­or 4-wire RTD: 1.1 s, 2-wire RTD: 920 ms, Potentiometer: 3-wire connection 2.8 s,
2-wire connection 2.25 s

eff

There is no electrical isolation between the programming input and the supply.
The programming cable provides galvanic isolation so that ground loops are avoided.

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