Pepperl+Fuchs KFD2-UT2-Ex1-1 Universal Temperature Converter, 1-channel isolated barrier, 24 V DC supply (Power Rail).

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 Ur 20 ... 30 V DC

Ripple within the supply tolerance

Power dissipation ≤ 0.64 W

Power consumption max. 0.64 W

Interface

Programming interface programming socket

Input

Connection side field side

Connection terminals 1, 2, 3, 4

RTD type 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 current approx. 200 µA with RTD

Types of measuring 2-, 3-, 4-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)

type L (DIN 43710: 1985)

type TXK, TXKH, TXA (P8.585-2001)

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 terminals 7-, 8+

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

Fault indication output

Output type

Transfer characteristics

Deviation

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

thermocouple: ± (0.05 % of measurement value in °C + 1 K (1.2 K for types R and S)) ,

includes ± 0.8 K fault of the cold junction compensation (CJC)

mV: ± 50 µV

potentiometer: ± 0.05 % of full scale, (excludes faults 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

Influence of ambient temperature Pt100: ± (0.0015 % of measurement value in K + 0.0075 % of span)/K ΔTamb*)

thermocouple: ± (0.02 K + 0.005 % of measurement value in °C + 0.0075 % of span)/K

ΔTamb*)

, influence of cold junction compensation (CJC) included:

mV: ± (0.01 % of measurement value + 0.0075 % of span)/K ΔTamb*)

potentiometer: ± 0.0075 % of span/K ΔTamb*)

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

Influence of supply voltage < 0.01 % of span

Reaction time worst 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

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