Product Description

The LD70-SF6 Gas Leak Online Monitoring and Alarm System is primarily composed of three parts: the transmitter, the system host, and peripheral equipment. The transmitter is responsible for collecting on-site environmental data from the SF6 distribution substation, performing A/D conversion, and transmitting it to the system host. The system host analyzes, compares, and judges the collected data and runs the corresponding processing programs. Peripheral equipment includes alarm devices, ventilation equipment, and external monitoring systems, all of which are controlled by the system host.

When there is a change in the SF6 gas concentration or oxygen content in the environment, the SF6 gas transmitter can immediately detect this change and convert the detected change data into a digital signal, which is transmitted to the system host via the RS-485 fieldbus. The system host displays the collected data from the transmitter on the screen and, on the other hand, compares it with various inherent parameters stored in the host's memory through calculation and analysis, making a judgment on whether the data exceeds the limit. When the SF6 concentration exceeds the alarm setpoint (usually 1000ppm) or the oxygen content is below the alarm setpoint of 18%, the system host will automatically initiate an audible and visual alarm, start the fan for ventilation, and transmit an alarm signal to the remote control.

Product Features

Advanced Technology:

High-performance Processor: Equipped with an A33 quad-core CortexTM-A7 processor, ensuring real-time high-speed data processing and alarm response.

Trace Monitoring Technology: Products are equipped with the ability to detect and alert for trace SF6 gas leaks, enabling timely prevention of safety accidents.

Multiple testing functions:

Multi-faceted Monitoring: Equipped with SF6 gas, oxygen, and humidity/temperature content detection functions, meeting the comprehensive monitoring requirements of the power industry safety regulations.

Alarm points can be set: The SF6 gas leakage monitoring alarm points can be set by the user themselves, ranging from 1 to 1500ppm, providing flexibility to adapt to various application scenarios.

High quality and reliability:

Advanced Sensors: Utilizing Swiss infrared gas sensor light source, MIN can detect SF6 gas at 10ppm in the environment with an alarm error less than 1%.

High-Quality Components: Key components and integrated circuits are of industrial or military grade, enhancing product adaptability and lifespan in various environments.

Human-Centric Design

Wide voltage design: AC 185~265V, DC 110V/220V voltage compatibility, catering to various on-site power requirements, easy to use.

Human Detection Design: Equipped with human detection capabilities, it can automatically display, provide voice prompts, and trigger alarms, enhancing the intuitive experience for on-site staff.

Remote Communication and Data Recording:

Remote Communication Capability: Data can be remotely transmitted to the control center via RS485 bus and standard communication protocols, enabling long-distance inquiry and control.

Vast Data Logging: Equipped with vast historical data logging capabilities, providing robust support for fault analysis and prevention.

Safety Protection and Early Warning:

Detect Leaks Promptly: Utilize SF6 gas monitoring sensors and oxygen gas monitoring sensors to promptly identify gas leaks and oxygen deficiency, ensuring personnel safety.

Automatic Alarm and Ventilation: The system automatically triggers an audible and visual alarm, as well as voice alerts, when the SF6 concentration exceeds the alarm setpoint or the oxygen content falls below the alarm setpoint, and simultaneously activates the fan for ventilation.

System Composition and Adaptability:

System Composition: Mainly consists of transmitters, system hosts, and peripheral devices, featuring a clear structure and easy maintenance.

High adaptability: A single cable connects all transmitters and the host, allowing for individual or combined use, offering high on-site adaptability to meet the needs of large-scale projects.