EN
GSA-L/DIRF Dual-Display Infrared SF6 Gas Quantitative Leak Detector
GSA-L/DIRF Digital Intelligent Dual-Display Infrared SF6 Gas Quantitative Leak Detector with Dual-Wavelength NDIR Technology, 0.1ppm Sensitivity, Host+Handle Dual Screen Real-Time Display, Automatic Annual Leakage Rate Calculation, for GIS, SF6 Circuit Breaker, Transformer On-Site Leak Detection.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GSA-L/DIRF is a professional, high-precision quantitative SF6 gas leak detectorexclusively designed for leak detection of SF6-insulated high-voltage equipment. It fully complies with DL/T 846.6-2018 and IEC 60480:2019 standards, adopting advanced dual-wavelength non-dispersive infrared (NDIR) spectroscopy technology to achieve absolute specificity for SF6 gas, eliminating cross-interference from other gases such as CO₂, H₂O, and refrigerants.
The instrument features an innovative host+handle dual-display design, allowing operators to view real-time concentration and leakage rate on the handle screen without looking down at the host, greatly improving detection efficiency and safety in high-altitude and narrow-space operations. Equipped with a 5.6-inch high-brightness color touch screen on the host and a 3.2-inch LCD screen on the handle, it supports both qualitative leak point location and quantitative leakage rate measurement. With a built-in 7.4V/10Ah large-capacity lithium battery, it can work continuously for more than 8 hours, making it ideal for all-day on-site inspections. Ideal for daily inspection, leak point location, quantitative detection and acceptance test of GIS, SF6 circuit breakers, power transformers, instrument transformers and SF6 gas cylinders.
Specifications
| Parameter | Specification |
|---|---|
| Detection Principle | Dual-wavelength non-dispersive infrared (NDIR) spectroscopy |
| Target Gas | Sulfur hexafluoride (SF₆) |
| Sensitivity | 0.1ppm |
| Measurement Range | 0 – 2000ppm (automatic range switching) |
| Accuracy | ±2% FS (0 – 1000ppm), ±5% FS (1000 – 2000ppm) |
| Resolution | 0.1ppm |
| Response Time | ≤3 seconds |
| Recovery Time | ≤5 seconds |
| Leakage Rate Calculation | Automatic conversion to annual leakage rate (g/y) |
| Display | Host: 5.6-inch high-brightness color touch screen Handle: 3.2-inch LCD screen |
| Probe | 35cm flexible stainless steel probe, 360° rotatable |
| Alarm Modes | Sound, light and vibration triple alarm |
| Alarm Threshold | 1 – 1000ppm (adjustable) |
| Peak Hold Function | Yes |
| Data Storage | 1000 groups (with time stamp, power-off protection) |
| Data Export | USB interface, PDF/Excel report generation |
| Power Supply | Built-in 7.4V/10Ah lithium battery + AC 220V±10%, 50Hz charger |
| Battery Life | >8 hours continuous operation |
| Charging Time | ~4 hours (full charge) |
| Sensor Life | >10 years |
| Protection Functions | Over-pressure, Over-current, Low battery, Pump protection, Electromagnetic interference protection |
| Dimensions | Host: 260×180×100mm Handle: 350×50×40mm |
| Weight | ~2.5kg (including battery and probe) |
| Operating Temperature | -10℃ ~ +50℃ |
| Operating Humidity | ≤90%RH (non-condensing) |
| Altitude | ≤2000m |
| Compliance | DL/T 846.6-2018, IEC 60480:2019, GB/T 8905-2012, Q/GDW 11304.15-2015 |
Applications
Core Test Objects
- GIS gas insulated switchgear: 10kV-500kV GIS and HGIS equipment
- SF6 circuit breakers: Live tank and dead tank SF6 circuit breakers
- Power transformers: SF6-insulated power transformers
- Instrument transformers: SF6-insulated current transformers (CT) and voltage transformers (VT)
- SF6 gas cylinders: Leak detection during storage and transportation
- Other SF6 equipment: SF6 load switches, disconnectors, surge arresters
Typical Usage Scenarios
- Power companies: Daily on-site inspection of substation SF6 equipment
- GIS manufacturing plants: Factory type tests and outgoing quality control
- Transformer manufacturing plants: Leak detection of SF6-insulated transformers
- Third-party testing institutions: On-site acceptance and compliance testing
- Power plants: Generator transformer and auxiliary equipment leak detection
- Industrial and mining enterprises: SF6 equipment routine inspection and maintenance
Advantages
Compliance with International Standards
Fully meets DL/T 846.6-2018, IEC 60480:2019 and GB/T 8905-2012 standards → test results are globally recognized
Dual-Wavelength NDIR Technology
Absolute specificity for SF6 gas, no cross-interference → eliminates false alarms caused by other gases, ensures accurate detection
Innovative Dual-Display Design
Handle screen real-time display, no need to look down at host → greatly improves detection efficiency and safety in high-altitude and narrow-space operations
0.1ppm Ultra-High Sensitivity
Detects minute SF6 leaks as small as 0.1ppm → identifies potential leaks before they cause safety hazards and economic losses
Quantitative Leakage Rate Calculation
Automatically converts concentration to annual leakage rate (g/y) → meets the quantitative detection requirements of international standards
FAQ
Q: What is the difference between infrared SF6 leak detector and traditional halogen leak detector?
A:
- Infrared detector (GSA-L/DIRF): Uses NDIR technology, only responds to SF6 gas, no cross-interference, quantitative measurement, >10 years sensor life, no radioactive hazard
- Halogen detector: Uses electron capture (ECD) technology, responds to all halogen gases, prone to false alarms, only qualitative measurement, <2 years sensor life, contains radioactive material GSA-L/DIRF is safer, more accurate and more cost-effective in the long run.
Q: What is the advantage of the dual-display design?
A: The dual-display design allows operators to view real-time concentration and leakage rate on the handle screen without looking down at the host. This is especially useful when detecting leaks in high-altitude positions (such as GIS busbars) or narrow spaces (such as cable trenches), greatly improving detection efficiency and safety.
Q: Can it quantitatively measure the annual leakage rate?
A: Yes. It automatically converts the measured SF6 concentration to annual leakage rate (g/y) according to standard algorithms, which meets the quantitative detection requirements of DL/T 846.6-2018 and IEC 60480:2019 standards.
Q: How long does the sensor last?
A: The dual-wavelength NDIR sensor has a service life of more than 10 years, which is much longer than traditional halogen detectors. It only needs to be calibrated once a year, reducing maintenance cost and downtime.
Q: Does it have a peak hold function?
A: Yes. It automatically records and displays the maximum concentration detected during the test, which is very useful for locating small leaks.
