Shanghai Yushi Technology Development Co., Ltd.
| Vacuum Pump | Customized Vortex Spiral Oil-Free Vacuum Pump |
| Detection Principle | High-Frequency Magnetic Field Low-Voltage Ionization |
| Highest Sensitivity | 0.01 ppm (1×10⁻⁸) |
| Packaging Details | Carton/ Wooden box |
| Supply Ability | 1000 units per year |
| Delivery Time | 15 work days |
| Display Resolution | 0.01 ppm |
| Payment Terms | T/T |
| SF₆ Measurement Range | 0.01–10,000 ppm |
| Recommended Range | 0.01–100 ppm |
| Model Number | LF-303 |
| Brand Name | KSTONE |
| Certification | ISO9000 |
| Place of Origin | Shanghai |
View Detail Information
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Product Specification
| Vacuum Pump | Customized Vortex Spiral Oil-Free Vacuum Pump | Detection Principle | High-Frequency Magnetic Field Low-Voltage Ionization |
| Highest Sensitivity | 0.01 ppm (1×10⁻⁸) | Packaging Details | Carton/ Wooden box |
| Supply Ability | 1000 units per year | Delivery Time | 15 work days |
| Display Resolution | 0.01 ppm | Payment Terms | T/T |
| SF₆ Measurement Range | 0.01–10,000 ppm | Recommended Range | 0.01–100 ppm |
| Model Number | LF-303 | Brand Name | KSTONE |
| Certification | ISO9000 | Place of Origin | Shanghai |
| High Light | SF6 leak detector with oil-free pump ，ultra-sensitive SF6 leak detector ，wireless SF6 leak detector | ||
The LF-303 SF₆ Quantitative Leak Detector represents the latest generation of high-sensitivity SF₆ gas leak detection systems, building upon the proven LF-300 and LF-301 platforms. Utilizing advanced high-frequency magnetic field low-voltage ionization technology, this instrument achieves an ultra-high sensitivity of 0.01 ppm, enabling precise quantitative detection of even the smallest SF₆ leaks in GIS, GIL, circuit breakers, transformers, and gas handling systems.
The result is a safer, cleaner, and more portable solution for utility companies, GIS manufacturers, EPC contractors, and commissioning engineers.
Detects SF₆ leakage concentrations as low as:
Ideal for locating micro-leaks before they develop into major gas losses.
The LF-303 utilizes a customized vortex spiral oil-free vacuum pump, eliminating the traditional requirement for oil-lubricated vacuum pumps.
Supports modern connectivity options:
Suitable for modern digital substations and remote inspection applications.
Integrated pull-handle structure provides:
The advanced sensor design offers:
Comprehensive leak detection feedback through:
A PM1.0 micro-particle filter protects the detector probe from dust contamination and helps maintain long-term performance stability.
Built-in diagnostic points allow operators to:
Simple field calibration and re-calibration functions help maintain long-term measurement accuracy.
| Item | LF-303 Specification |
|---|---|
| Detection Principle | High-Frequency Magnetic Field Low-Voltage Ionization |
| Vacuum Pump | Customized Vortex Spiral Oil-Free Vacuum Pump |
| SF₆ Measurement Range | 0.01-10,000 ppm |
| Recommended Range | 0.01-100 ppm |
| Highest Sensitivity | 0.01 ppm (1×10⁻⁸) |
| Radiation Source | None |
| Response Time | ≤0.5 s at ≥1 ppm SF₆ |
| Recovery Time | ≤10 s at 99.99% SF₆ |
| Recovery Time (10% SF₆) | ≤1 s |
| Display Resolution | 0.01 ppm |
| Alarm Function | Audible Alarm + Digital Display |
| Alarm Setting | User Adjustable |
| Detector Probe Length | 3 m |
| Wireless Communication | WiFi / Hotspot |
| Continuous Operating Time | Up to 4 Hours |
| Battery Operation | Approximately 3 Hours |
| Power Supply | AC 220V / Rechargeable Lithium Battery |
| Ambient Temperature | 5°C to 45°C |
| Relative Humidity | ≤85% RH |
| Power Consumption | ≤120 W |
| Dimensions | 400 × 340 × 320 mm |
| Net Weight | 13 ±0.5 kg |
| Sensor Protection | PM1.0 Dust Filter |
| Sensor Life | ≥5 Years |
| Warranty | 1 Year Including Sensor |
The LF-303 is widely used for:
KSTONE is a professional manufacturer specializing in SF₆ gas testing, monitoring, recovery, and handling equipment for the global power industry.
The LF-303 can detect SF₆ leakage concentrations as low as 0.01 ppm.
No. The instrument operates without any radioactive source and is safe for operators and transportation.
The LF-303 introduces a customized oil-free vacuum pump, wireless communication capability, and extended battery life while maintaining ultra-high sensitivity.
Yes. The detector supports WiFi and hotspot-based wireless data transmission.
Yes. It is widely used during GIS installation, commissioning, maintenance, and leak verification testing.
The sensor typically lasts between 5 and 10 years under normal operating conditions.
Yes. The LF-303 provides simple user calibration and re-calibration functions.
Yes. The trolley-style design and lithium battery operation make it highly suitable for field applications.
For more information about the LF-303 SF₆ Leak Detector, please contact:
Shanghai Yushi Technology Development Co., Ltd.
Email: info@kstone-sf6.com
We provide advanced SF₆ alternative gas analysis and eco-friendly GIS testing solutions for global power utilities and manufacturers.
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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