Input 2-wire and 3-wire transmitters and 2-wire current sources
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Output 0/4 mA ... 20 mA
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2 relay contact outputs
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Adjustable energized/de-energized delay
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Programmable high/low alarm
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Linearization function (max 20 points)
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Line fault detection (LFD)
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Up to SIL 2 acc. to IEC 61508/IEC 61511
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Function
This isolated barrier is used for intrinsic safety applications.
The device supplies 2-wire and 3-wire transmitters, and can also be used with current sources.
Two relays and an active 0/4 mA ... 20 mA current source are available as outputs. The relay contacts and the current output can be integrated in
security-relevant circuits. The current output is easily scaled.
On the display the measured value can be indicated in various physical units.
The device is easily configured by the use of keypad or with the PACTware configuration software.
The input has a line fault detection.
A fault is signalized by LEDs acc. to NAMUR NE44 and a separate collective error message output.
For additional information, refer to the manual and www.pepperl-fuchs.com.
Connection
Technical Data
General specifications
Signal typeAnalog input
Functional safety related parameters
Safety Integrity Level (SIL)SIL 2
Supply
ConnectionPower Rail or terminals 23+, 24Rated voltageU
Rated currentI
Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 255620_eng.pdf
r
r
20 ... 30 V DC
approx. 130 mA
1
Transmitter Power SupplyKFD2-CRG2-Ex1.D
Germany: +49 621 776 2222Pepperl+Fuchs Group
Refer to "General Notes Relating to Pepperl+Fuchs Product Information".
Connection sidefield side
Connectionterminals 1, 2, 3
Input I
Input signal0/4 ... 20 mA
Available voltage≥ 15 V at 20 mA
Open circuit voltage/short-circuit current24 V / 33 mA
Input resistance45 Ω (terminals 2, 3)
Line fault detectionbreakage I < 0.2 mA; short-circuit I > 22 mA
Output
Connection sidecontrol side
Connectionoutput I: terminals 10, 11, 12
Output signal0 ... 20 mA or 4 ... 20 mA
Output I, IIsignal, relay
Contact loading250 V AC / 2 A / cos φ ≥ 0.7 ; 40 DC / 2 A
Mechanical life5 x 107 switching cycles
Output IIISignal, analog
Current range0 ... 20 mA or 4 ... 20 mA
Open loop voltagemax. 24 V DC
Loadmax. 650 Ω
Fault signaldownscale I ≤ 3.6 mA, upscale I ≥ 21 mA (acc. NAMUR NE43)
Energized/De-energized delay0 ... 250 s , adjustable
Transfer characteristics
Input I
Accuracy< 30 µA
Influence of ambient temperature0.003 %/K (30 ppm)
Output I, II
Response delay≤ 200 ms at bounce from 0 ... 20 mA
Output III
Resolution≤ 10 µA
Accuracy< 20 µA
Influence of ambient temperature0.005 %/K (50 ppm)
Reaction time< 650 ms at bounce from 0 ... 20 mA at the input, 90 % of output full-scale value
Galvanic isolation
Input/Other circuitsreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V
Output I, II/other circuitsreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V
Mutual output I, II, IIIreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V
Output III/power supply and collective errorfunctional insulation acc. to IEC 62103, rated insulation voltage 50 V
Interface/power supply and collective errorfunctional insulation acc. to IEC 62103, rated insulation voltage 50 V
Indicators/settings
Display elementsLEDs , display
Control elementsControl panel
Configurationvia operating buttons
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
Mass300 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
Data for application in connection with hazardous areas