Digital guide
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Yokogawa Z021C-7 Safety Barrier Module
Technical Specifications:
- Input Signal: 4-20mA DC current signal, input impedance 250Ω.
- Output Signal: 4-20mA DC current signal, with the same signal as the input.
- Intrinsically Safe Parameters: Uo = 15V, Io = 22mA, Po = 0.1W, which meets the requirements of the intrinsic safety standard.
- Isolation Voltage: 1500V AC, isolating the safe area from the hazardous area.
- Working Voltage: 24V DC, power consumption is 10mA.
- Working Temperature: -20℃ to 60℃, suitable for the working environment of the hazardous area.
- Protection Rating: IP20, meeting the basic protection requirements.
Detailed content
- Functional Characteristics:
- It adopts an intrinsic safety design, which can effectively limit the electrical energy entering the hazardous area and prevent the occurrence of explosion accidents.
- It has a high – precision signal transmission function, which can ensure that the signal is transmitted without distortion, and does not affect the accuracy of the control system’s data collection.
- The module has a fault self – diagnosis function, which can monitor its own working status in real – time, and send a fault signal to the upper – level system when a fault occurs.
- It is easy to install and maintain, and the modular design is convenient for users to replace and maintain the module.
- It is compatible with various field instruments, and can be used with various 4-20mA signal output transmitters.
- Application Scenarios: It is widely used in the connection of field instruments and the control system in the explosive hazardous areas of the petroleum and chemical industry; the signal transmission between the instrument and the control room in the coal mine gas monitoring system; the connection of the gas detector and the alarm controller in the metallurgical industry’s blast furnace gas system; and the signal transmission in the hazardous areas of the pharmaceutical and chemical industries.
