倍加福SIL认证信号隔离器KCD2-STC-1.2O

倍加福SIL认证隔离器KCD2-STC-1.2O

•单通道

•24v直流电源(电源线)

•输入2线智能变送器和电流源

•信号分配器(1输入2输出)

•双输出0/4 mA…20 mA或0/1 V…5伏

•带有测试插座的终端块

•根据IEC 61508，安全等级可达SIL2

应用

这个信号调节器提供电流隔离在现场电路和控制电路之间。该设备提供2线发射机，也可以使用与当前的来源。该设备将模拟输入信号传输到控制端作为两个孤立的输出信号。支持双向通信智能发射机，使用电流调制传输数据和电压调制接收数据。输出被选择为当前源、当前接收器或电压源通过开关。测试HART通信器连接的套接字为集成到设备的终端。倍加福SIL认证信号隔离器KCD2-STC-1.2O

技术参数

General specifications

Signal type Analog input

Supply

Connection Power Rail or terminals 9+, 10-

Rated voltage Un 18 ... 30 V DC

Ripple within the supply tolerance

Power dissipation 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

Open circuit voltage/short-circuit current terminals 1+, 2-: 17 V/25 mA

Voltage drop terminals 3, 4: ≤ 6.1 V at 20 mA

Input resistance terminals 1+, 2-: ≤ 500 Ω

(250 Ω load)

Available voltage terminals 1+, 2-: ≥ 16 V at 20 mA

Output

Connection source: terminals 5-, 6+; 7-, 8+

sink: terminals 5+, 6-, 7+, 8-

Load channel 1: 0 ... 500 Ω (20 mA)/< 1 MΩ (5 V)

channel 2: 0 ... 500 Ω (20 mA)/< 1 MΩ (5 V)

Output signal 0/4 ... 20 mA or 0/1 ... 5 V

Ripple ≤ 50 μA rms