SF6 Testing Instrument
LQHV-615 Intelligent SF6 Density Relay Calibrator
Essential Tool for SF6 Switch Maintenance
This precision calibrator verifies SF6 gas density relays in high-voltage switches, ensuring compliance with DL/T596-2021 standards. Its patented temperature compensation technology eliminates the need for constant temperature chambers - perform accurate 20℃ equivalent pressure conversions in any field conditions.
Technical Parameters
| measurement accuracy | 0.2 F●S |
| Pressure displayresolution | 0.001MPa |
| Pressure measuring range | 0～0.99MPa |
| Temperature measurement range | -20℃～80℃ |
| Temperature measurement error | ±0.5℃ |
| SF6 gas emissions | During the entire verification process, SF6 gas emissions are extremely low |
| Display | Industrial grade 7-inch full-color high-definition LCD screen, displaying both measured pressure values and equivalent pressure values at 20 ℃ |
| Operating mode | Touch screen |
| Printing method | Array printing |
| Data Storage | Up to 1000 measurement data can be stored |
| Working power supply | 24V lithium battery power supply |
| Overall Power Consumption | ≤20W |
| Host size/weight | 380×290×250(mm3)/4.9kg |
| Attachment box size/weight | 390×340×200(mm3)/7.8kg |
Core Specifications
Measurement Range: 0-1.0MPa (custom ranges available)
Accuracy: ±0.1% FS (with imported pressure sensors)
Temperature Compensation: -30℃ to +60℃ ambient range
Contact Testing: Supports 3 contact groups (NO/NC configurations)
Why Choose This Density Relay Tester?
Advanced Compensation Technology
Our dynamic P-T algorithm automatically converts readings to 20℃ equivalents, solving the #1 challenge in field calibration - temperature variation errors.
Military-Grade Components
German pressure sensors + 32-bit microprocessor deliver lab-grade accuracy (±0.05% repeatability) in rugged field conditions.
Zero-Gas-Waste Design
Patented low-flow verification consumes 80% less SF6 gas than conventional methods, saving $420/year in gas costs (avg. 50 tests/year).
Compliance & Applications
Meets Global Standards:
DL/T596-2021 (China Power Equipment Testing)
IEC 62271-1 (HV Switchgear Standards)
ANSI C37.122 (US GIS Standards)
Critical Use Cases:
Preventive maintenance for GIS substations
Troubleshooting false alarms in circuit breakers
Commissioning new SF6 equipment
Gas recycling plant quality control
Smart Data Management
500-test memory with timestamped records
USB/PC software generates Word/PDF reports
On-board printer for instant field reports
Includes 2-year warranty + free calibration software updates
