ST81 Air velocity transmitter
This product is suitable for wind speed measurement in applications such as HVAC, duct airflow measurement, process and environmental control.
Utilizes a MEMS-based sensor probe operating on the heat conduction principle, offering high measurement accuracy, a wide measurement range, excellent stability, and robust environmental adaptability. Ideal for a variety of wind speed and air volume measurement applications.
Key Specifications:
• Core Function: High-accuracy air velocity measurement
• Sensor Technology: MEMS technology for high precision and wide range
• Measurement Range: 0-10m/s, 0-15m/s, 0-20m/s, 0-30m/s (customizable)
• Resolution: 0.01m/s
• Accuracy: ±(0.2m/s + 3% of mv) under standard conditions (20℃, 45%RH, 1013hPa)
• Output Signal: 0-10VDC/4-20mA, with RS485/Modbus communication option
• Operating Temperature: Storage: -20°C to 80°C [-4°F to 176°F]; Working: -10°C to 60°C 14°F to 140°F]
• IP Grade: Shell IP65, Probe IP20
• Probe Length: 210mm (customizable)
• Display: Optional LCD display with backlight and unit indication
Typical Applications:
✔ HVAC systems for precise air velocity control
✔ Duct air volume measurement in ventilation systems
✔ Environmental control and process monitoring in industrial settings
✔ Wind speed measurement in pipeline and other applications requiring high accuracy
Catalogue：
Additional information
| Accuracy | ±(0.2m/s+3% of mv)(20℃ (68℉ ),45%RH and 1013hPa) |
|---|---|
| Range | 0…10m/s,0…15m/s,0…20m/s,0…30m/s |
| Resolution | 0.01m/s |
| Preheat time | 2min(Available)-10min(Reach the maximum accuracy) |
| Working voltage | 24V AC/DC±20% |
| Temperature(Working) | -10…+60°C[+14…+140°F] |
| Temperature(Storage) | -20…+80°C[-4…+176°F] |
| IP grade | Shell IP65,Probe IP20 |
