
Transmitter Power Supply
KFU8-CRG2-1.D
16
17
18
10
11
12
I
II
III
78+
3
1+
2-
mA
AC/DC
23
24
mA
HART
Germany: +49 621 776 2222Pepperl+Fuchs Group
Refer to "General Notes Relating to Pepperl+Fuchs Product Information".
USA: +1 330 486 0002 Singapore: +65 6779 9091
www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@sg.pepperl-fuchs.com
pa-info@de.pepperl-fuchs.com
KFU8-CRG2-1.D
1-channel signal conditioner
<
Universal usage at different power supplies
<
Input 2-wire and 3-wire transmitters and 2-wire current sources
<
Output 0/4 mA ... 20 mA
<
2 relay contact outputs
<
Adjustable energized/de-energized delay
<
Programmable high/low alarm
<
Linearization function (max 20 points)
<
Line fault detection (LFD)
<
Up to SIL 2 acc. to IEC 61508/IEC 61511
<
Function
This signal conditioner provides the galvanic isolation between field circuits and control circuits.
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.
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 23, 24
Rated voltage U
Power dissipation 2 W / 3 VA
Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 255623_eng.pdf
r
20 ... 90 V DC or 48 ... 253 V AC
1

Transmitter Power Supply KFU8-CRG2-1.D
Germany: +49 621 776 2222Pepperl+Fuchs Group
Refer to "General Notes Relating to Pepperl+Fuchs Product Information".
USA: +1 330 486 0002 Singapore: +65 6779 9091
www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@sg.pepperl-fuchs.com
pa-info@de.pepperl-fuchs.com
Technical Data
Power consumption 2.2 W / 4 VA
Interface
Programming interface programming socket
Input
Connection side field side
Connection terminals 1, 2, 3
Input I
Input signal 0/4 ... 20 mA
Available voltage > 15 V at 20 mA
Open circuit voltage/short-circuit current 24 V / 33 mA
Input resistance 45 Ω (terminals 2, 3)
Line fault detection breakage I < 0.2 mA; short-circuit I > 22 mA
Output
Connection side control side
Connection output I: terminals 10, 11, 12
Output signal 0 ... 20 mA or 4 ... 20 mA
Output I, II signal, relay
Contact loading 250 V AC / 2 A / cos φ ≥ 0.7 ; 40 V DC / 2 A
Mechanical life 5 x 107 switching cycles
Output III Signal, analog
Current range 0 ... 20 mA or 4 ... 20 mA
Open loop voltage max. 24 V DC
Load max. 650 Ω
Fault signal downscale I ≤ 3.6 mA, upscale I ≥ 21.5 mA (acc. NAMUR NE43)
Energized/De-energized delay 0 ... 250 s , adjustable
Transfer characteristics
Input I
Accuracy < 30 µA
Influence of ambient temperature 0.003 %/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 temperature 0.005 %/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 circuits reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V
Output I, II/other circuits reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V
Mutual output I, II, III reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V
Output III/power supply reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V
Interface/power supply reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V
Indicators/settings
Display elements LEDs , display
Control elements Control panel
Configuration via operating buttons
Labeling space for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EU EN 61326-1:2013 (industrial locations)
Low voltage
Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 255623_eng.pdf
output II: terminals 16, 17, 18
Output: analog terminals 8+, 7-
via PACTware
eff
eff
eff
eff
eff
2

ESC
OK
KFU8-CRG2-
1.D
RS232
PWR
1 2
FLT
OUT
19 21
15
9
13
7
20
14
8
22 24
18
12
16
10
23
17
11
132 465
Removable terminal
green
Front view
Removable terminals
green
Keypad
LC display
LED green:
Power supply
Programming jack
Place for labeling
LED red:
Fault signal
LED yellow:
Output II
LED yellow:
Output I
Transmitter Power Supply KFU8-CRG2-1.D
Germany: +49 621 776 2222Pepperl+Fuchs Group
Refer to "General Notes Relating to Pepperl+Fuchs Product Information".
USA: +1 330 486 0002 Singapore: +65 6779 9091
www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@sg.pepperl-fuchs.com
pa-info@de.pepperl-fuchs.com
Technical Data
Directive 2014/35/EU EN 61010-1:2010
Conformity
Electromagnetic compatibility NE 21:2006
Degree of protection IEC 60529:2001
Ambient conditions
Ambient temperature -20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protection IP20
Connection screw terminals
Mass 300 g
Dimensions 40 x 119 x 115 mm (1.6 x 4.7 x 4.5 inch) , housing type C3
Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001
General information
Supplementary information Observe the certificates, declarations of conformity, instruction manuals, and manuals
Accessories
Optional accessories - FDT framework PACTware 4.1
where applicable. For information see www.pepperl-fuchs.com.
- device type manager DTM Interface Technology
- adapter K-ADP-USB
Assembly
Accessories
DTM Interface
Technology
K-ADP-USB
PACTware 5.X FDT Framework
Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 255623_eng.pdf
3

Germany: +49 621 776 2222Pepperl+Fuchs Group
Refer to "General Notes Relating to Pepperl+Fuchs Product Information".
USA: +1 330 486 0002 Singapore: +65 6779 9091
www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@sg.pepperl-fuchs.com
pa-info@de.pepperl-fuchs.com
Transmitter Power Supply
0.1
1
0.2
0.15
2
0.3
3
0.4
4
0.5
0 50 150 200 250100
I (A)
U (V)
Characteristic Curve
Maximum Switching Power of Output Contacts
Resistive load DC
Resistive load AC
1 max. 105 switching cycles
KFU8-CRG2-1.D
Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 255623_eng.pdf
4