SF6 Gas Analyzer for High-Voltage GIS & Switchgear Maintenance
Portable multi-parameter diagnostic system engineered for precise measurement of SF6 purity, moisture content, and toxic decomposition byproducts in high-voltage electrical equipment.
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![Sf6 Dew Point Meter]()
Sf6 Dew Point MeterThe NRYH200 sf6 dew point meter measures trace moisture in SF6 gas. Moisture level is critical for SF6 switchgear insulation—excess moisture reduces dielectric strength and accelerates corrosion. The
Standards & Calibration
Compliance with international high-voltage testing standards ensures direct acceptance by power grids and testing laboratories across North America and Europe:
Standards Conformance:
Designed in accordance with IEC 60480 (Check and treatment of SF6 taken from electrical equipment), IEC 60376 (New sulfur hexafluoride), IEEE Std C37.122.1, and DL/T 596 (Power equipment preventive test code).
Calibration Traceability:
Every unit is factory-calibrated using NIST-traceable reference gas mixtures. Each analyzer ships with an individual calibration certificate detailing linearity, zero drift, and sensor recovery times.
Manufacturing Quality Control:
Manufactured under ISO 9001 quality management systems. Sensor housings undergo 100% helium mass spectrometer leak testing at 1.5x operating pressure to guarantee zero gas leakage during field connection.
Technical Specifications
|
Technical Parameter |
SF6-300 Standard |
SF6-500 Advanced |
|
SF6 Purity Measurement |
0% to 100% (Thermal Conductivity / Infrared) |
0% to 100% (High-Precision NDIR) |
|
Purity Accuracy |
±0.5% |
±0.2% |
|
Moisture (Dew Point) |
-60°C to +20°C dew point |
-80°C to +20°C dew point |
|
Dew Point Accuracy |
±1.0°C |
±0.5°C |
|
Decomposition Byproducts |
SO2: 0 to 100 ppm |
SO2: 0 to 200 ppm H2S: 0 to 50 ppm CO: 0 to 500 ppm HF: 0 to 10 ppm |
|
Byproduct Accuracy |
±2% FS |
±1% FS |
|
Sample Flow Rate |
0.5 to 0.8 L/min |
0.4 to 1.0 L/min (Regulated) |
|
Working Pressure |
0.05 to 1.0 MPa (Inlet) |
0.01 to 1.2 MPa (Inlet) |
|
Gas Recovery System |
Internal gas storage / zero-emission loop |
Internal gas recovery with active filtration |
|
Display & Interface |
7-inch industrial touch screen, sunlight readable |
10.1-inch capacitive touch screen, dust/water resistant |
|
Data Storage & Output |
10,000 records, USB 2.0, RS485 |
50,000 records, USB, Ethernet, Bluetooth |
|
Power Supply |
Rechargeable Li-ion battery (8 hours continuous) |
Dual power: AC 110-240V / Li-ion battery (12 hours) |
|
Enclosure Rating |
IP65 portable rugged transport case |
IP67 heavy-duty wheeled Pelican case |
Applications
Gas-Insulated Switchgear (GIS):
Routine health checks, moisture tracking, and fault diagnosis in substation GIS compartments.
High-Voltage Circuit Breakers (GCB):
Pre-commissioning and post-maintenance purity verification before energizing high-voltage lines.
SF6 Gas Recovery & Recycling Units:
Monitoring reclaimed gas quality to ensure compliance before re-injection or cylinder filling.
Power Utility Maintenance Contractors:
Field diagnostic testing requiring IP65/IP67 rated, portable instrumentation capable of withstanding extreme outdoor ambient conditions (-20°C to +50°C).
Standard Delivery Scope:
SF6 Analyzer main unit with integrated thermal printer
3-meter flexible PTFE sampling hose with self-sealing DN8/DN20 quick couplings (Wika compatible)
AC power adapter and charging cable
Calibration certificate, user manual, and data analysis software package
Optional Accessories:
High-pressure reduction valves for direct cylinder sampling
Spare chemical filter tubes for moisture and byproduct scrubbing
Heavy-duty transit transport case
Technical Support & Warranty:
12-month full-system warranty covering sensors and electronic components
Remote engineering support for firmware updates and data interpretation
Annual re-calibration services available via authorized regional hubs
Factory Show
FAQ
Q: How does the analyzer prevent SF6 gas emission during testing?
A: The unit features a closed-loop gas return and storage design. Sample gas routed through the sensors is collected internally or directed back into the equipment or a recovery bag, preventing atmospheric greenhouse gas release and complying with strict EU F-gas regulations.
Q: Are the quick-coupling connectors compatible with standard substation valves?
A: Yes. The instrument comes equipped with standard DN8 and DN20 self-sealing quick connectors (compatible with DILO and Wika fittings), allowing direct connection to most international GIS gas valves without adapters.
Q: How often does the sensor require factory recalibration?
A: Under normal operational frequency, we recommend annual calibration to maintain measurement accuracy. The modular sensor design allows quick replacement of pre-calibrated sensor modules to minimize instrument downtime.
Q: Can the device operate in low-temperature winter outdoor conditions?
A: Yes. The internal measurement chamber is temperature-controlled, and the LCD display features automated heating. The unit operates reliably down to -20°C ambient temperature.
Q: What data export formats are supported?
A: Test records can be exported directly via USB flash drive in PDF and CSV formats. Optional software allows automated generation of substation diagnostic test reports matching utility standards.
Q: What is the lead time for standard export orders?
A: Standard configurations are stocked for dispatch within 7 to 10 business days. Customized OEM interfaces or specialized multi-gas configurations require 3 to 4 weeks.
Request a Quote / Technical Inquiry
To receive a detailed quotation, freight cost to your facility, or custom OEM specifications, please submit your requirements:
Required Model: [ SF6-300 / SF6-500 / OEM Module ]
Quantity: [ 1–5 units / 5+ units / Distribution Partnership ]
Destination Country: [ e.g., United States / Germany / Canada ]
Contact our engineering sales team directly at wang@transformer-test.com for immediate technical datasheet distribution.
Refine On (Hebei) Electric Power Technology Co., Ltd. is one of the most reliable sf6 analyzer manufacturers and suppliers in China, also supports customized service. Please feel free to wholesale advanced sf6 analyzer at competitive price from our factory. Contact us for quotation.
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