倍加福KCD2-STC-EX1.2O安全柵特征
?1通道隔離屏障
?24v直流電源(電源線)
?輸入2線智能發(fā)射機和電流源
?信號分配器(1輸入2輸出)
?雙輸出0/4 mA…20 mA或0/1 V…5伏
?帶有測試插座的終端塊
?根據(jù)IEC 61508，安全等級可達SIL2?
應用
這種隔離屏障用于內(nèi)在安全應用。該設備在危險區(qū)域提供二線發(fā)射器，也可以與當前資源一起使用它將模擬輸入信號以2的形式傳輸?shù)桨踩珔^(qū)孤立的輸出信號。支持雙向通信智能發(fā)射機，使用電流調(diào)制傳輸數(shù)據(jù)和電壓調(diào)制接收數(shù)據(jù)。輸出被選擇為當前源、當前接收器或電壓源通過開關(guān)。測試HART通信器連接的套接字為集成到設備的終端。
應用程序
該設備支持以下智能協(xié)議:
? HART技術(shù)參數(shù)
General specifications
Signal type Analog b
Supply
Connection Power Rail or terminals 9+, 10-
Rated voltage Un 18 ... 30 V DC
Ripple within the supply tolerance
Power loss approx. 1.4 W at 20 mA transfer current, 250 Ω in both outputs
Power consumption 2 W
Input
Connection terminals 1+, 2- (sink); 3+, 4- (source)
Input signal 0/4 ... 20 mA
Voltage drop ≤ 6.1 V at 20 mA (terminals 3, 4)
Input resistance terminals 3+, 4-: ≤ 310 Ω
terminals 1+, 2-: ≤ 500 Ω (250 Ω load)
Available voltage ≥ 15 V at 20 mA terminals 1+, 2-
Output
Connection source: terminals 5-, 6+; 7-, 8+
sink: terminals 5+, 6-, 7+, 8-
Load channel 1: 0 ... 500 Ω (20 mA)/< 2.5 MΩ (5 V)
channel 2: 0 ... 500 Ω (20 mA)/< 2.5 MΩ (5 V)
Output signal 0/4 ... 20 mA or 0/1 ... 5 V
Ripple ≤ 50 μA rms
Transfer characteristics
Deviation Iout < 20 μA; Vout < 7.5 mV incl. calibration, linearity, hysteresis and fluctuation of supply voltage,
at 20 °C (68 °F), 0/4 ... 20 mA, 0/1 ... 5 V
Influence of ambient temperature 0.25 μA/K
Frequency range field side into the control side: bandb with 0.5 Vpp signal 0 ... 7.5 kHz (-3 dB)
control side into the field side: bandb with 0.5 Vpp signal 0.3 ... 7.5 kHz (-3 dB)
Settling time 200 μs
Rise time/fall time 20 μs
Electrical isolation
Output/power supply functional insulation, rated insulation voltage 50 V AC
Output/Output functional insulation, rated insulation voltage 50 V AC
Directive conbity
Electromagnetic compatibility
Directive 2004/108/EC EN 61326-1:2013 (industrial bs)
Conbity
Electromagnetic compatibility NE 21:2006
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
Mass approx. 100 g
Dimensions 12.5 x 114 x 122 mm (0.5 x 4.5 x 4.8 in) , housing type A2
Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001
