Analog Input Isolation Safety Barrier：Provide an isolated DC power supply for the transmitters located in the hazardous area on site, and detect the 4-20mA current signal from the transmitters. After processing such as isolation and anti-interference suppression, output DC current or voltage signals to the safety side's control system or other unit combination instruments. This safety barrier adopts DC power supply, with three-terminal isolation of input, output and power supply.
Model: LW8-SO-EX-C11 (1 input and 1 output)
Model: LW8-SO-EX-C22 (2 input and 2 output)
Analog output Isolation Safety Barrier：This product is compatible with DCS/PLC and other control system or unit combination instruments for 4-20mA current input and 4-20mA current output type isolation safety barrier. It accepts the current signals (4-20mA) output from the DCS/PLC system or other control sources in the safety zone and transmits them through this isolation safety barrier. Then, it outputs 4-20mA signals to drive the actuators, display instruments, etc. in the hazardous areas. This isolation safety barrier adopts independent power supply, and the input, output and power supply are mutually isolated.
Model: LW8-SI-EX-T11 (1 input and 1 output)
Model: LW8-SI-EX-T12 (1 input and 2 output)
Model: LW8-SI-EX-T22 (2 input and 2 output)
Intelligent Temperature Transmitter Isolation Safety Barrier：This product receives thermal resistance, thermocouple or other millivolt signals from the hazardous area on site, and after isolation and linearization processing, converts them into linearized current signals for output to the safety area control system or other unit combination instruments. This safety barrier is powered by an independent DC power supply, with isolation between input, output and power supply.
Model: LW8-SI-EX-K11 (1 input and 1 output)
Model: LW8-SI-EX-K22 (2 input and 2 output)
Switch input Isolation Safety Barrier：This intrinsically safe proximity switch (NAMUR proximity switch in accordance with DIN19234 standard) or contact switch is suitable for installation in hazardous areas. Through isolation, it transmits to the control system or other instruments in the safe area in the form of relay contacts (or transistors, level signals). The on-off isolation safety barrier with line fault detection function and the on-off isolation safety barrier without line fault detection function can be selected. When the on-off isolation safety barrier with input line fault detection function detects a line fault, the line fault LED indicator on the instrument panel lights up red. This isolation safety barrier is powered by an independent DC power supply, and the input-output-power supply are three-terminal isolated.
Model: LW8-SO-EX-KC11 (1 input and 1 output)
Model: LW8-SO-EX-KC22 (2 input and 2 output)
Switch output Isolation Safety Barrier：This product controls the field devices in the hazardous area through a switch, transistor or logic level signal by using the power supply in the safe area. It is suitable for driving intrinsically safe devices such as solenoid valves and alarms, as well as other simple devices without energy storage. The safety barrier is powered by an independent DC power supply, and the input, output and power supply are isolated at three ends.
High-quality Isolation Safety Barrier
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