The XHJL306 SF6 Quantitative Leak Detector is a portable, cordless gas leak detection instrument built around an advanced microprocessor with digital signal processing technology. It delivers precise quantitative detection of sulfur hexafluoride (SF6) leaks as well as all halogenated refrigerants, making it an essential tool for GIS switchgear maintenance, high-voltage equipment inspection and refrigeration system service. The digital signal processing core manages the circuit and sensing tip signal with real-time monitoring of sensor tips and battery voltage, compensating signal pulse variations promptly to keep the instrument stable and reliable across different working environments.
| Parameter | Specification |
|---|---|
| Power Supply | 3V DC, two "C" cell alkaline batteries |
| Maximum Sensitivity | Per SAE J1627 rating criteria, certified for R12, R22, R134a @ 0.5 oz/yr (14gr/yr) |
| Ultimate Sensitivity | Less than 0.1 oz/yr for all halogen based refrigerants |
| Temperature | 0-52°C |
| Battery Life | Approximately 30 hours normal use |
| Duty Cycle | Continuous, no limitation |
| Response Time | Instantaneous |
| Reset Time | One second |
| Warm-up Time | Approximately two seconds |
| Unit Dimensions | 22.9cm × 6.5cm × 6.5cm |
| Application | Typical Use |
|---|---|
| GIS Switchgear Maintenance | Locating SF6 leaks in gas-insulated switchgear and circuit breakers |
| High-voltage Equipment | Leak inspection of SF6-insulated transformers, bus ducts and instrument transformers |
| Manufacturing QC | Factory leak testing of SF6 switchgear before shipment |
| HVAC & Refrigeration | Detecting R12, R22 and R134a refrigerant leaks in air conditioning and cooling systems |
| Industrial Safety | Monitoring halogenated gas emissions in laboratories and processing plants |
With its combination of quantitative sensitivity, instant response and true mechanical pumping, the XHJL306 delivers dependable gas leak detection for both SF6 electrical equipment and halogenated refrigerant systems, helping maintenance teams prevent costly gas loss, equipment failure and environmental emissions.
The XHJL306 is built around an advanced microprocessor that performs digital signal processing of the sensing tip output, enabling better management of the circuit and sensing tip signal than conventional analog detectors. The digital signal processing technology ensures real-time monitoring of the sensor tip and battery voltage, compensating signal pulse variations of even small changes promptly. This makes the instrument a stable and reliable testing tool in different environments, from outdoor substations to indoor manufacturing lines, where temperature, humidity and electromagnetic interference may vary significantly.
The detector uses true mechanical pumping to provide positive airflow through the sensing tip, which means the air sample is actively drawn across the sensor rather than relying on passive diffusion. This delivers consistent, repeatable readings and faster response when scanning flanges, valves, seals and other potential leak points on SF6-insulated equipment. Combined with the flexible stainless steel probe, operators can reach confined spaces inside switchgear compartments, bus duct enclosures and transformer terminal boxes with ease.
For GIS and high-voltage switchgear applications, regular SF6 leak detection is part of preventive maintenance that helps maintain gas pressure, dielectric strength and equipment reliability. Early detection of small leaks also reduces SF6 emissions, supporting environmental compliance and lowering refill costs. For refrigeration applications, the detector helps technicians find leaks quickly in R12, R22 and R134a systems, reducing refrigerant loss and improving system efficiency.