MHT410
Moisture, hydrogen and temperature transmitter for transformer oil
An online transmitter for power transformer condition monitoring. Its unique probe measures hydrogen, moisture and temperature directly in the insulating oil, without pumps or membranes, delivering real-time trends as an early warning of developing faults. Robust IP66 design with no consumables and a 5-year standard warranty.
Download datasheet (PDF)Technical specifications
- Hydrogen range
- 0–5000 ppm en aceite (límite de detección 15 ppm; sensor de estado sólido de paladio-níquel)
- Moisture in oil
- 0–100 %RS / aw 0–1 (sensor HUMICAP® 180L2, exactitud ±2 %RS)
- Temperature
- -40 °C a +120 °C (Pt1000, exactitud ±0,2 °C)
- Compatible liquids
- Aceite mineral, éster natural, éster sintético y aceite de silicona
- Outputs
- 3 salidas analógicas 4–20 mA aisladas; RS-485 (Modbus RTU, DNP3, ASCII serie)
- Housing rating
- IP66, carcasa metálica con protector contra intemperie
Key features
- Direct in-oil measurement with a unique single probe — no pumps, membranes or consumables
- Solid-state hydrogen sensor with no cross-sensitivity to other gases (< 2 %)
- Moisture measured in oil with the capacitive thin-film HUMICAP® sensor
- Early warning of developing faults with real-time trend data
- Every unit individually tested to 10 bar; withstands vacuum conditions
- Galvanically isolated inputs and outputs, high EMC tolerance
- Integrated data logging in non-volatile memory (up to 44 years)
- 5-year standard warranty
Typical applications
- Online monitoring of power and distribution transformers
- Early warning of transformer faults
- Predictive maintenance and proactive intervention decisions
- Transformer fleet monitoring
- Transformers filled with mineral oils, esters or silicone oil
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