Cut Sheet

Release date 2017-08-09 14:38 Date of issue 2017-08-10 231364_eng.xml
Technical data KFD2-STC4-Ex1
2
Refer to "General Notes Relating to Pepperl+Fuchs Product Information".
Pepperl+Fuchs Group USA: [phone] Singapore: [phone]Germany: [phone]
www.pepperl-fuchs.com [e-mail] [e-mail] [e-mail]
General specifications
Signal type Analog input
Functional safety related parameters
Safety Integrity Level (SIL) SIL 2
Supply
Connection Power Rail or terminals 14+, 15-
Rated voltage U
r
20 ... 35 V DC
Ripple within the supply tolerance
Power dissipation 1.4 W
Power consumption 1.8 W
Input
Connection side field side
Connection terminals 1+, 2-, 3 or 5-, 6+
Input signal 0/4 ... 20 mA
Voltage drop ≤ 2.4 V at 20 mA (terminals 5, 6)
Input resistance ≤ 64 Ω terminals 2-, 3 ; ≤ 500 Ω terminals 1+, 3 (250 Ω load)
Available voltage ≥ 16 V at 20 mA terminals 1+, 3
Output
Connection side control side
Connection terminals 7-, 8+, 9
Load 0 ... 800 Ω at 20 mA
Output signal 0/4 ... 20 mA (overload > 25 mA)
Ripple ≤ 50 µA
rms
Transfer characteristics
Deviation at 20 °C (68 °F), 0/4 ... 20 mA
≤ 10 µA incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage
Influence of ambient temperature 0.25 µA/K
Frequency range field side into the control side: bandwidth with 0.5 V
pp
signal 0 ... 7.5 kHz (-3 dB)
control side into the field side: bandwidth with 0.5 V
pp
signal 0.3 ... 7.5 kHz (-3 dB)
Settling time 200 µs
Rise time/fall time 20 µs
Galvanic isolation
Output/power supply functional insulation, rated insulation voltage 50 V AC
Indicators/settings
Display elements LED
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 21:2011
Degree of protection IEC 60529:2001
Protection against electrical shock UL 61010-1:2012
Ambient conditions
Ambient temperature -20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protection IP20
Connection screw terminals
Mass approx. 200 g
Dimensions 20 x 124 x 115 mm (0.8 x 4.9 x 4.5 inch) , housing type B2
Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection
with hazardous areas
EU-Type Examination Certificate BAS 99 ATEX 7060
Marking ¬ II (1)G [Ex ia Ga] IIC , ¬ II (1)D [Ex ia Da] IIIC
Input [Ex ia Ga] IIC, [Ex ia Da] IIIC
Supply
Maximum safe voltage U
m
250 V (Attention! The rated voltage can be lower.)
Equipment terminals 1+, 3-
Voltage U
o
25.4 V
Current I
o
86.8 mA
Power P
o
551 mW
Equipment terminals 2-, 3
Current I
o
/Current I
i
74 mA / 115 mA
Current I
i
115 mA