BASIC INFO
P+F SMART Transmitter Power Supply KFD2-STC3-Ex1 isolated barrier 24 V DC supply Analog input
Features
• 1-channel isolated barrier
• 24 V DC supply (Power Rail)
• 2-wire SMART transmitter
• Output 4 mA ... 20 mA
• SMART capable up to 40 kHz (-1dB)
• Suitable for Honeywell DE protocol
• Terminals with test points
Function
This isolated barrier is used for intrinsic safety applications. It
provides a 2-wire SMART transmitter with power in a
hazardous area and transfers the analog signal to the safe
area as an isolated current source.
Digital signals up to 40 kHz may be superimposed on the
analog values in the hazardous or safe area and are
transferred bi-directionally.
Sockets for the connection of a HART communicator are
integrated into the terminals of the device.
Application
The device supports the following SMART protocols:
• HART
• BRAIN
• Honeywell DE
General specifications
Signal type Analog input
Supply
Connection Power Rail or terminals 7+, 8-
Rated voltage Ur 20 ... 35 V DC
Ripple within the supply tolerance
Power dissipation ≤ 1.6 W
Power consumption ≤ 2 W
Input
Connection side field side
Connection terminals 1+, 3-
Input signal 4 ... 20 mA
Available voltage approx. 17 V at 4 ... 20 mA
Output
Connection side control side
Connection terminals 9+, 10-, 11+
Output signal 4 ... 20 mA , max. load 1000 ohm , for HART ≥ 230 ohm, Honeywell DE 230 ... 280 ohm (transmitter and communicator
dependent)
Ripple ≤ 0.05 % of output signal range
Transfer characteristics
Deviation ≤ 0.05 % of output signal range (current output), ≤ 10 µA at 20 °C (68 °F)
Influence of ambient temperature ≤ 20 ppm/K
Frequency range field side into the control side: bandwidth with 1 mApp signal 0 ... 40 kHz (-1 dB); 0 ... 50 kHz (-6 dB)
safe area to hazardous area: bandwidth with 250 mVpp signal 2 Hz ... 40 kHz (-1 dB); 1 Hz ... 50 kHz (-6 dB)
Rise time 10 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 21:2006
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 approx. 150 g
Dimensions 20 x 115 x 115 mm (0.8 x 4.5 x 4.5 inch) , housing type B1
Data for application in connection
with hazardous areas
EU-Type Examination Certificate BAS 01 ATEX 7369
Marking ¬ 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
Voltage Uo 25.2 V DC
Current Io 93 mA
Power Po 587 mW
Supply
Maximum safe voltage Um 250 V (Attention! The rated voltage can be lower.)
Certificate BASEEFA 09 ATEX 0218X
Marking ¬ II 3G Ex nA II T4 Gc [device in zone 2]
Galvanic 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 2014/34/EU EN 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
UL approval
Control drawing 116-0173 (cULus)
IECEx approval IECEx BAS 06.0088
IECEx BAS 09.0102X
Order number:
KCD2-STC-Ex1
KCD2-STC-Ex1.ES
KFD2-CRG2-Ex1.D
KFD2-HLC-Ex1.D
KFD2-HLC-Ex1.D.2W
KFD2-STC4-Ex1
KFD2-STC4-Ex1.2O
KFD2-STC4-Ex1.2O.H
KFD2-STC4-Ex1.H
KFD2-STC4-Ex2
KFU8-CRG2-Ex1.D
KCD2-STC-Ex1.2O
KCD2-STC-Ex1.2O.ES
KCD2-STC-Ex1.ES.SP
KCD2-STC-Ex1.SP
KFD2-STC3-Ex1
KFD2-STC4-Ex1-Y1
KFD2-STC4-Ex1.2O-Y1
KFD2-STC4-Ex1.ES
KFD2-STC4-Ex2-Y1
KFD2-STC5-Ex1
KFD2-STC5-Ex1.2O
KFD2-STC5-Ex1.2O.H
KFD2-STC5-Ex1.H
KFD2-STC5-Ex2
KFD2-STC5-Ex2
KFD2-STC5-Ex2
KFD2-STV4-Ex1.2O-1
KFD2-STV4-Ex2-1
KFD2-STV4-Ex2-2
KFD2-STV5-Ex1-1
KCD2-STC-Ex1.2O.DE
KFD2-HLC-Ex1.D.4S
KFD2-STV4-Ex1.2O-2
KCD2-STC-Ex1.HC
KCD2-STC-Ex1.HC.SP
KFD2-STC4-Ex1
KFD2-STC4-Ex1-Y1
KFD2-STC4-Ex1.2O
KFD2-STC4-Ex1.2O-Y1
KFD2-STC4-Ex1.2O.H
KFD2-STC4-Ex1.H
KFD2-STV4-Ex1-1
KFD2-STV4-Ex1-2
KFD2-STV4-Ex1.2O-1
KFD2-STV4-Ex2-1
KFD2-STV4-Ex2-2
KFD2-STV4-Ex1.2O-2
KFD2-STC3-Ex1
KCD2-STC-Ex1-Y1
-----------------------------------
Lily
HONGKONG XIEYUAN TECH CO., LIMITED
T: 86-027-85581877 F: 86-027-85309780
Mail:lily@whxyauto.com
Ad: 7-A16,Caishen Commercial Plaza,Hankou Railway Station,Wuhan, Hubei, China
Web: www.hkxytech.com
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