供应倍加福安全栅KFD2-STC4-EX1变送器供电模块 邱雪坤

http://www.glsensors.com/

• 1-channel isolated barrier
• 24 V DC supply (Power Rail)
• Input 2-wire and 3-wire SMART transmitters and 2-wire
SMART current sources
• Output 0/4 mA ... 20 mA
• Terminals with test points
• Up to SIL2 acc. to IEC 61508
Function
This isolated barrier is used for intrinsic safety applications.
The device supplies 2-wire and 3-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.
If the HART communication resistance in the loop is too low,
the internal resistance of 250 Ω between terminals 8 and 9
can be used.
Test sockets for the connection of HART communicators are
integrated into the terminals of the device.

供应倍加福安全栅KFD2-STC4-EX1变送器供电模块 邱雪坤

General specifications
Signal type Analog input
Supply
Connection Power Rail or terminals 14+, 15-
Rated voltage 20 ... 35 V DC
Ripple within the supply tolerance
Power loss 1.5 W
Power consumption 1.9 W
Input
Connection terminals 1+, 2-, 3 or 5-, 6+
Input signal 0/4 ... 20 mA
Voltage drop Ud ≤ 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 terminals 7-, 8+, 9
Load 0 ... 800 Ω
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 Vpp signal 0 ... 7.5 kHz (-3 dB)
control side into the field side: bandwidth with 0.5 Vpp signal 0.3 ... 7.5 kHz (-3 dB)
Rise time 20 μs
Start-up time 200 μs
Electrical isolation
Output/power supply functional insulation, rated insulation voltage 50 V AC
Directive conformity
Electromagnetic compatibility
Directive 2004/108/EC EN 61326-1:2006
Conformity
Electromagnetic compatibility NE 21:2006
Protection degree IEC 60529
Ambient conditions
Ambient temperature -20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Protection degree IP20
Mass approx. 200 g
Dimensions 20 x 124 x 115 mm (0.8 x 4.9 x 4.5 in) , housing type B2
Data for application in connection
with Ex-areas
EC-Type Examination Certificate BAS 99 ATEX 7060 , for additional certificates see www.pepperl-fuchs.com

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