HN Thermal Gas Mass Flowmeter
HONZEN INSTRUMENTS · HN-THERMAL
HN Thermal Gas Mass Flowmeter
Measures gas mass flow from the heat-transfer difference between two temperature-sensing elements.

Overview
Measures gas mass flow from the heat-transfer difference between two temperature-sensing elements.
Key Features
- Uses the thermal-dispersion principle.
- Designed for gas mass-flow measurement.
- RS-485 communication is listed.
Technical Specifications
| Parameter | Catalogue value |
|---|---|
| Flow velocity | 0.05–120 m/s |
| Accuracy | ±1% of reading ±0.5% FS (catalogue notation) |
| Output signal | Two linear 4–20 mA outputs: mass flow and temperature |
| Power supply | DC 18–30 V, max. 600 mA; AC 180–230 V, max. 2.5 W; AC 100 V, max. 3.15 W |
| Pressure | Pressure rating: 4.2 MPa |
| Materials | Probe options: 316L / tantalum / titanium |
Applications
Monitoring industrial gases, ventilation air, biogas and flare gas.
Model Selection / Ordering Information
Please provide medium, pipe size, flow range, operating pressure and temperature, installation, required output and hazardous-area requirements. Confirm options against the actual process conditions.
Request a Quote
Technical data: supplied Anhui Huining flowmeter catalogue, PDF spread 21R–22L. Hazardous-area ratings, materials and configurations are catalogue options; confirm the final selected model and its documents.
