Shanghai Yushi Technology Development Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 1000 units per year |
| Delivery Time | 15 work days |
| Packaging Details | Carton/ Wooden box |
| Detection Principle | High-frequency Magnetic Field & Low-voltage Ionization |
| Measurement Range | 0.01 ppm – 10000 ppm，Recommended range: 0.01 ppm – 100 ppm |
| Detection Accuracy | 0.01 ppm |
| Minimum Resolution | 0.01 ppm |
| Response Time | ≤1 sec at 1 ppm |
| Brand Name | KSTONE |
| Model Number | LF-300 |
| Certification | ISO9000 |
| Place of Origin | Shanghai |
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Product Specification
| Payment Terms | T/T | Supply Ability | 1000 units per year |
| Delivery Time | 15 work days | Packaging Details | Carton/ Wooden box |
| Detection Principle | High-frequency Magnetic Field & Low-voltage Ionization | Measurement Range | 0.01 ppm – 10000 ppm，Recommended range: 0.01 ppm – 100 ppm |
| Detection Accuracy | 0.01 ppm | Minimum Resolution | 0.01 ppm |
| Response Time | ≤1 sec at 1 ppm | Brand Name | KSTONE |
| Model Number | LF-300 | Certification | ISO9000 |
| Place of Origin | Shanghai | ||
| High Light | SF6 leak detector with 0.01 ppm sensitivity ，portable GIS leak testing detector ，fast response SF6 gas detector | ||
The LF-300 SF6 Quantitative Leak Detector is a high-sensitivity SF6 gas leak testing device designed for GIS switchgear inspection, industrial maintenance and electrical equipment manufacturing applications.
The detector features touch screen ppm display with a minimum resolution of 0.01 ppm for accurate quantitative leak analysis. It supports both qualitative leak detection and quantitative leak detection, enables accurate calculation of annual leakage rate, and is suitable for bagging method leak testing.
The equipment adopts high-frequency magnetic field and low-voltage ionization detection technology, providing accurate and reliable SF6 micro leak detection performance. The LF-300 is designed without radioactive sources, ensuring safe operation and long-term industrial reliability during daily inspection work.
With no consumable components inside the detector, the equipment offers low maintenance cost and durable long-term performance. The detector supports optional external lithium battery inverter power supply, making it suitable for both factory inspection and portable field applications.
SF6 gas is widely used in gas-insulated switchgear and high-voltage electrical equipment because of its excellent insulation performance. Even small SF6 leakage may affect equipment insulation reliability, operational safety and long-term system performance.
Accurate SF6 leak detection is therefore critical during manufacturing, commissioning and maintenance processes. Traditional leak testing equipment may suffer from slow response speed, unstable operation or complicated maintenance procedures.
Industrial environments also require reliable leak detection systems capable of stable operation under varying temperature and humidity conditions. Power utilities and switchgear manufacturers therefore require a high-sensitivity SF6 quantitative leak detector for precise industrial inspection applications.
The LF-300 is developed to provide fast, accurate and stable SF6 leak detection for industrial inspection and electrical maintenance environments. The equipment adopts high-frequency magnetic field and low-voltage ionization technology for precise identification of SF6 micro leakage points.
Its ultra-fast response speed allows operators to quickly locate leakage sources during inspection processes. Integrated audible alarm and LCD digital display provide clear leak concentration indication during operation.
The detector also features excellent "poisoning" recovery capability, allowing rapid recovery even under high SF6 concentration environments. The aluminum alloy anti-collision carrying case improves equipment protection during transportation and field operation.
| Product Model | LF-300 SF6 Quantitative Leak Detector |
| Detection Principle | High-frequency Magnetic Field & Low-voltage Ionization |
| Measurement Range | 0.01 ppm - 10000 ppm, Recommended range: 0.01 ppm - 100 ppm |
| Detection Accuracy | 0.01 ppm |
| Minimum Resolution | 0.01 ppm |
| Response Time | ≤0.5 sec at 10 ppm |
| Response Time | ≤1 sec at 1 ppm |
| Recovery Time | ≤10 sec under 99.99% SF6 |
| Recovery Time | 1 sec under 10% SF6 |
| Display Method | Touch Screen & LCD Digital Display |
| Alarm Function | Audible Buzzer Alarm |
| Hose Length | Standard 3 m (customizable up to 10 m) |
| Power Input | 220V±22V, 50Hz±2Hz |
| Optional Power Supply | External Lithium Battery Inverter |
| Operating Temperature | 5°C - 50°C |
| Operating Humidity | ≤95% |
| Power Consumption | 180-220W |
| Detector Weight | 1.2 kg |
| Main Unit Weight | 7.1 kg |
| Main Unit Dimensions | 310 * 168 * 200 mm |
| Carrying Case | Aluminum Alloy Anti-collision Case |
| Carrying Case Weight | 3.0 kg |
| Carrying Case Dimensions | 370 * 320 * 270 mm |
The LF-300 combines ultra-fast response, high sensitivity and portable industrial design, making it suitable for GIS inspection and SF6 leak testing applications.
The LF-300 SF6 leak detector is widely used in GIS switchgear inspection, electrical maintenance and industrial SF6 leak testing applications.
The equipment is suitable for both factory quality inspection and outdoor field maintenance requiring portable high-sensitivity leak detection capability. Its lightweight detector structure and optional lithium battery power supply make it ideal for mobile inspection environments.
The LF-300 is also suitable for power utilities, switchgear manufacturers and electrical testing service providers.
The LF-300 uses high-frequency magnetic field and low-voltage ionization technology to analyze SF6 gas concentration during leak testing.
During operation, the detector continuously samples surrounding air through its gas detection system. When trace SF6 gas is detected, the detector analyzes gas concentration and displays quantitative leakage values in real time.
The touch screen and LCD display provide clear ppm readings, while the buzzer alarm frequency changes according to leakage concentration. Its fast recovery capability allows the detector to quickly return to normal operation after exposure to high SF6 concentration environments.
Choosing the correct SF6 leak detector depends on required sensitivity, inspection environment and operational portability.
For GIS switchgear inspection and industrial maintenance work, high sensitivity and fast response speed are critical factors. Users should also consider recovery capability, display accuracy and environmental adaptability during equipment selection.
Portable field inspection applications may require lightweight structure and optional battery power support. For continuous industrial leak testing, durable construction and low maintenance requirements are also important considerations.
The LF-300 is recommended for customers requiring portable operation, high-speed response and accurate SF6 quantitative leak detection capability.
Send us your technical requirements and application details. Our engineering team will provide a suitable SF6 leak detection solution within 24 hours.
Company Details
Business Type:
Manufacturer
Year Established:
2013
Total Annual:
500,00,00-600,00,00
Employee Number:
40~60
Ecer Certification：
Verified Supplier
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