Description
The GE HYDRAN M2 is a continuous online fault-monitoring device for electrical transformers. It provides real-time detection of dissolved gases (composite hydrogen and carbon monoxide) and moisture in oil to prevent catastrophic equipment failure.
Technical Parameters
- Model Number: HYDRAN M2
- Gas Sensitivity: Hydrogen (H2) and Carbon Monoxide (CO)
- Response Time: 10 minutes to reach 90% of final reading
- Analog Outputs: 4-20mA (Isolated)
- Digital Communication: RS-485 / RS-232 / Ethernet
Product Specifications
- Mounting: 1.5 inch NPT male thread (valve mounting)
- Operating Temp: -40°C to +55°C (Ambient)
- Enclosure Rating: NEMA 4X / IP66 (Weatherproof)
- Power Supply: 100-240 VAC or 100-300 VDC
- Sensor Type: Fuel cell electrochemical sensor

Application Fields
- Power Transformer Health Monitoring
- Electrical Grid Substation Maintenance
- Industrial High-Voltage Assets
- Renewable Energy Wind/Solar Farms
Product Q&A
- Q: What is the main benefit of the Hydran M2 over traditional DGA?
- A: It provides 24/7 real-time alerts for sudden gas spikes, whereas DGA (Dissolved Gas Analysis) is usually a periodic manual test.
- Q: Does the M2 measure individual gases like Acetylene?
- A: No, it measures a composite value primarily dominated by Hydrogen to indicate general fault activity.
- Q: Can external sensors be connected to this unit?
- A: Yes, it can act as a hub for additional sensors like load, oil temperature, and ambient temperature probes.

