بریر KCD2-STC-EX1

FEATURES
• 1-channel isolated barrier
• 24 V DC supply (Power Rail)
• Input for 2-wire SMART transmitters and current sources
• Output for 4 mA ... 20 mA or 1 V ... 5 V
• Sink or source mode
• Housing width 12.5 mm
• Up to SIL2 acc. to IEC 61508
Function
This isolated barrier is used for intrinsic safety applications.
The device supplies 2-wire SMART transmitters in a
hazardous area, and can also be used with 2-wire SMART
current sources.
It transfers the analog input signal to the safe area as an
isolated current value.
Digital signals may be superimposed on the input signal in the
hazardous or safe area and are transferred bi-directionally.
Selectable output of current source, sink mode, or voltage
output is available via DIP switches.
If the HART communication resistance in the loop is too low,
the internal resistance of 250 Ω between terminals 6 and 8
can be used.
Test sockets for the connection of HART communicators are
integrated into the terminals of the device.
Application
The device supports the following SMART protocols:
• HART
• BRAIN

Technical data
General specifications
Signal type Analog input
Supply
Connection Power Rail or terminals 9+, 10-
Rated voltage 19 ... 30 V DC
Ripple ≤ 10 %
Rated current ≤ 45 mA
Power loss ≤ 800 mW
Power consumption ≤ 1.1 W
Input
Connection terminals 1+, 2-; 3+, 4-
Input signal 4 ... 20 mA limited to approx. 30 mA
Open circuit voltage/short-circuit current terminals 1+, 2-: 22 V / 30 mA
Voltage drop terminals 3+, 4- : approx. 5 V
Available voltage terminals 1+, 2-: ≥ 15 V at 20 mA
Output
Connection terminals 5-, 6+
Load 0 ... 300 Ω (source mode)
Output signal 4 ... 20 mA or 1 ... 5 V (on 250 Ω, 0.1 % internal shunt)
4 ... 20 mA (sink mode), operating voltage 15.5 ... 26 V
Ripple 20 mV rms
Transfer characteristics
Deviation at 20 °C (68 °F)
≤ ± 0.1 % incl. non-linearity and hysteresis (source mode 4 ... 20 mA)
≤ ± 0.2 % incl. non-linearity and hysteresis (sink mode 4 ... 20 mA)
≤ ± 0.2 % incl. non-linearity and hysteresis (source mode 1 ... 5 V)
Influence of ambient temperature < 2 μA/K (0 ... 60 °C (32 ... 140 °F)); < 4 μA/K (-20 ... 0 °C (-4 ... 32 °F)) (source mode and sink mode 4 ... 20
mA)
< 0.5 mV/K (0 ... 60 °C (32 ... 140 °F)); < 1 mV/K (-20 ... 0 °C (-4 ... 32 °F)) (source mode 1 ... 5 V)
Frequency range field side into the control side: bandwidth with 0.5 Vpp signal 0 ... 3 kHz (-3 dB)
control side into the field side: bandwidth with 0.5 Vpp signal 0 ... 3 kHz (-3 dB)
Settling time ≤ 200 ms
Rise time/fall time ≤ 20 ms
Electrical isolation
Input/Output reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff
Input/power supply reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff
Output/power supply reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff
Directive conformity
Electromagnetic compatibility
Directive 2004/108/EC EN 61326-1:2006
Conformity
Electromagnetic compatibility NE 21:2006
Protection degree IEC 60529:2001
Ambient conditions
Ambient temperature -20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Protection degree IP20
Mass approx. 100 g
Dimensions 12.5 x 114 x 124 mm (0.5 x 4.5 x 4.9 in) , housing type A2
Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection
with Ex-areas
EC-Type Examination Certificate CESI 06 ATEX 021 , for additional certificates see www.pepperl-fuchs.com
Group, category, type of protection ¬ II (1)G [Ex ia Ga] IIC , ¬ II (1)D [Ex ia Da] IIIC , ¬ I (M1) [Ex ia Ma] I
Input [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
Supply
Maximum safe voltage Um 250 V AC (Attention! Um is no rated voltage.)
Equipment terminals 1+, 2-
Voltage Uo 25.2 V
Current Io 100 mA
Power Po 630 mW
Equipment terminals 3+, 4-
Voltage Ui < 30 V
Current Ii < 128 mA
Voltage Uo 7.2 V
Current Io 100 mA
Release date 2013-02-18 16:27 Date of issue 2013-02-18 185535_eng.xml
Technical data
Power Po 25 mW
Statement of conformity PF 06 CERT 0973 X
Group, category, type of protection,
temperature class
¬ II 3G Ex nA IIC T4 Gc
Electrical isolation
Input/Output safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Input/power supply safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity
Directive 94/9/EC EN 60079-0:2009, EN 60079-11:2007 , EN 60079-15:2005 , EN 60079-26:2007 , EN 61241-11:2006 , EN
50303:2000
International approvals
FM approval
Control drawing 16-533FM-12 (cFMus)
UL approval
Control drawing 16-533FM-12 (cULus)
IECEx approval IECEx CES 06.0001
Approved for [Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I.