◆ Measures Acetylene (C₂H₂), Ethylene (C₂H₄), Methane (CH₄), Hydrogen (H₂), Carbon Monoxide (CO), Carbon Dioxide (CO₂), Ethane (C₂H₆) and moisture content. A gas collection box gas monitoring module is available as an option to deliver comprehensive real-time monitoring and early warning for large-scale power transformers. ◆ Provides fault early warning and monitoring for oil-immersed transformers, and performs fault analysis and diagnosis by adopting methods including the David Triangle Diagram Method and the Three-Ratio Method.
Technical Specifications
Operating parameters
| Item | Specification |
|---|---|
| Power Input | 220 V AC ±10%, 50 Hz |
| Power Consumption | < 1000 W |
| Weight | < 100 kg |
| Dimensions | 1154 mm (H) × 650 mm (W) × 646 mm (D) |
| Ambient Temperature | -40 ℃ ~ +70 ℃ |
| Ambient Humidity | 10 ~ 95% |
| Measurement Cycle | Min. 1 hour, Max. 24 hours |
| Control Mode | Automatic, menu setting, manual control |
| Communication Interface | RS485 / RJ45 / Optical fiber / 4G wireless |
| Communication Protocol | IEC61850, TCP/IP |
| Altitude | ≤ 5000 m |
| Overvoltage Category | Category IV |
| IP Rating | IP55 |
| Insulation Resistance of External Circuit | ≥ 100 MΩ |
Standard measurement error limit
| Detected Component | Detection Range (μL/L) | Measurement Error Limit |
|---|---|---|
| Hydrogen (H₂) | 2 ~ 20 | ±2 μL/L or ±30% |
| 20 ~ 1000 | ±30% | |
| Acetylene (C₂H₂) | 0.2 ~ 5 | ±0.2 μL/L or ±30% |
| 5 ~ 10 | ±30% | |
| 10 ~ 50 | ±20% | |
| Methane (CH₄), Ethane (C₂H₆), Ethylene (C₂H₄) | 0.5 ~ 10 | ±0.5 μL/L or ±30% |
| 10 ~ 150 | ±30% | |
| Carbon Monoxide (CO) | 25 ~ 100 | ±25 μL/L or ±30% |
| 100 ~ 1500 | ±30% | |
| Carbon Dioxide (CO₂) | 25 ~ 100 | ±25 μL/L or ±30% |
| 100 ~ 7500 | ±30% | |
| Total Hydrocarbons (C1+C2) | 2 ~ 10 | ±2 μL/L or ±30% |
| 10 ~ 150 | ±30% | |
| 150 ~ 500 | ±20% |
1.Gas concentration in oil
2.The greater of the measurement error percentage or in μL/L
Authoritative organization certification & testing report


Application Diagram
![]() | 「Meets A-level product standards and has received recognition and praise from industry customers for its application.」 「Assist customers in timely detecting and monitoring transformer fault gases during equipment operation and inspection, early detection and warning, reducing transformer failure rates, and improving safety operation levels.」 「Upgraded products of gas chromatography and traditional photoacoustic spectroscopy, no need for carrier gas, no gas cross interference, high accuracy, and long-term stability of equipment.」 「For more product information, please consult now」 |
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Application Cases

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◆ Measures acetylene (C₂H₂) and moisture content. It incorporates three independent detection systems to achieve redundant configuration, providing critical real-time monitoring and early warning for large-scale power transformers. ◆ Designed for relay protection and control of oil-immersed transformers, it can independently perform rapid and automatic detection of dissolved acetylene content in transformer oil, as well as equipment fault analysis, diagnosis and early warning.
◆ Performs full-component detection and is equipped with an additional rapid acetylene detection unit. It can operate normally under extreme conditions including extremely high gas content, carbonization of transformer oil, high temperature and high humidity. ◆ Optimized electromechanical structure, upgraded with reliable flange joints, equipped with additional oil filter and gas filter, improved degassing compensation process, enhanced algorithm adapted to ultra-wide measuring range, and self-calibration by dual photoacoustic cells.
◆ Millimeter-level positioning, automatic obstacle avoidance with path planning, supports 4-hour wireless fast charging, and offers an 8-hour battery life. ◆ With 6 degrees of freedom and a load capacity of 5kg, it ensures micron-level positioning accuracy and IP5X dust resistance. ◆ Boasts high sensitivity, with a C2H2 detection accuracy of 0.05 µL/L and an H2 detection accuracy of 2 µL/L. Additionally, it demonstrates high efficiency through 3-channel synchronous degassing, enabling the detection of 9 components within 30 minutes.