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Control Components
HFM Airflow Measurement Unit
The HFM Airflow Measurement Unit precisely measures and monitors air velocity in duct systems. Advanced sensors and multi-point averaging provide accurate, fast air velocity feedback. It supports airflow balance and pressure stability in both new-build and retrofit projects.
Product Features
- Advanced high-precision sensor measurement
- With altitude and temperature compensation
- Millisecond-level measured air velocity feedback
- Can be installed directly in ducts
- Portable Design
| Product Model | HFM-100 to 1000 mm, custom lengths available |
|---|---|
| Material | Aluminum alloy |
| Air Velocity Measurement Range | 0 ~ 25 m/s |
| Air Velocity Measurement Accuracy | ±3% F.S. |
| Differential Pressure Measurement Range | 0 ~ 400 Pa |
| Temperature Measurement Range | -10 ~ +50°C |
| Altitude Compensation Range | 0 ~ 2000 m |
| Air Velocity Feedback Signal | 0-10V / 4-20mA |
| Power Supply | 24 VDC |
| Operating Environment | -10 ~ +50°C, ≤85% RH |
High-precision measurement
High-precision differential pressure sensors and air-density compensation adapt to seasonal temperature changes and altitude correction to ensure air velocity accuracy.
Customized Production
Measurement unit length and frame dimensions can be customized for different duct sizes.
Portable Design
Lightweight compact design for flexible duct installation.
Before Installation
- Check equipment appearance and accessory completeness
- Altitude can be corrected in the sensor according to project location; see brochure for operation details.
- Install according to airflow direction and reserve maintenance space
- Confirm power supply and component wiring
Installation Requirements
- For framed products, connect front and rear flanges and observe the airflow direction mark.
- If installed directly in a duct, open and fix the duct wall according to brochure requirements.
- Connect power and signal cables
- Power-on test
Commissioning Points
- Start the fan after checking that product installation and connections are secure
- Read data after fan speed stabilizes; 0-10V/4-20mA corresponds to duct velocity of 0-25 m/s.
- Observe and record data
HVAC System Commissioning
Commissioning of all-air systems to ensure each area meets design airflow requirements.
Clean Ventilation Systems
Measures room supply, return, and exhaust airflow to support airflow balance and room pressure control.
Ventilation System Maintenance
Performance testing and maintenance for existing building ventilation systems to identify system issues.
Ventilation System Retrofit
Adding measurement units in ducts enables pressure-independent control and airflow balancing.
Research Experiments
Data collection for ventilation experiments and research projects in universities and research institutes.
