SF6 Testing Instrument
LQHV-630 High Precision SF6 Gas Leak Detection System
Advanced handheld detector for quantitative SF6 gas leakage measurement in high-voltage switchgear. Combines pump-assisted sampling with NDIR technology for 0.1ppm sensitivity.
Why SF6 Leak Detection Matters
With 15% annual growth in SF6 circuit breaker usage, leaks pose dual risks:
Safety Hazard: 1,000ppm SF6 reduces oxygen to 19.5% (OSHA danger level)
Equipment Damage: 20% gas loss decreases dielectric strength by 35%
Product Parameters
Technical parameters
| Project | Content | ||
| Product model | UHV-630 | ||
| Measurement method | NDIR single beam dual wavelength infrared measurement technology | ||
| Monitoring gas | Measurement range | Resolution | Accuracy |
| Sulfur hexafluoride gas | 0～12000ppm | 1ppm | ±（1.5%+5d） |
| Repetitive performance | 1% | ||
| Pump extraction speed | ≥800ml/min | ||
| Continuous working time | Not less than 5 hours | ||
| Instrument start-up preheating time | ≤ 10 seconds | ||
| Response time | Less than 3 seconds | ||
| Recovery time | Less than 3 seconds | ||
| Charging adapter specifications | DC5V/1A | ||
| Surge (impact) immunity | ±1.2kV | ||
| Environmental temperature | -20℃～＋50℃ | ||
| ambient humidity | Relative humidity 5-95% (no condensation) | ||
| Atmospheric pressure | 50kPa～110kPa | ||
| Protection level | IP33, Double insulation, CAT II standard | ||
| External dimensions | 250×160×70mm3 | ||
| Host weight | 1kg | ||
Innovative Detection Features
Precision Measurement
Temperature-compensated NDIR sensor (±2% accuracy)
Real-time waveform display for trend analysis
Auto-calibration with reference gas
Industrial Durability
IP54-rated rugged casing
Military-grade connectors
-20°C to 50°C operating range
Smart Alarms
User-definable threshold alerts (visual/auditory)
Dual-wavelength compensation eliminates false positives
Vibration alert for noisy environments
Workflow Efficiency
Pre-Check: Sensor self-test (5 sec initialization)
Detection: Probe scans at 2cm/sec recommended speed
Analysis: Color LCD shows:
Real-time ppm value
Historical trend graph
Leak rate calculation
Reporting: Export data via USB (CSV format)
Maintenance Advantages
Zero Consumables: No sensor replacement needed
Field Calibration: On-demand verification
Diagnostic Tools: Battery/Sensor health monitoring
Industry Compliance
Designed for utility safety standards:
IEC 62271-203 (High-voltage switchgear)
ASTM D7712 (SF6 analysis standards)
EN 60068-2 (Environmental testing)
With 30+ years of gas detection expertise, the LQHV-630 provides substation teams with laboratory-grade accuracy in a field-ready package.
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