Specialized Measurement
HRT-V180 Thermal Air Velocity Transmitter
Precise thermal anemometer for low air velocity. Features digital compensation, zero-drift stability, and 4-20mA/RS485 output. Ideal for cleanrooms, HVAC, and pharma ventilation monitoring.
Specifications
- Product Type
- Thermal Anemometer / Air Velocity Transmitter
- Measuring Range
- 0-10, 0-20, 0-30, or 0-50 m/s (Selectable)
- Reference Accuracy
- <5 m/s: ±(5%rdg + 0.1m/s); >5 m/s: ±(3%rdg + 0.1m/s)
- Signal Output 1
- Analog: 4-20 mA / 0-5V / 0-10V
- Signal Output 2
- Digital: RS485 Modbus-RTU
- Response Time
- 200ms (Default); Supports 100ms High-speed
- Power Supply
- 12-24V DC
- Power Consumption
- ≤ 0.8W (Standard); ≤ 1.2W (With Display)
- Output Load
- Current: ≤ 500 Ω; Voltage: ≤ 2 MΩ
- Ingress Protection
- IP65 (Housing); IP00 (Sensing Probe)
- Operating Temp
- -10°C to +70°C
- Housing Material
- Flame-retardant material
- Airflow Calculation
- m³/h = Duct Area (m²) × Velocity (m/s) × 3600
- Customization
- Bespoke configurations available for unique downhole conditions
The HRT-V180 provides precise measurement for extremely low air velocities in ducts. Utilizing thermal sensing with digital linear and temperature compensation, it ensures high resolution without zero drift. With a flame-retardant IP65 housing and rapid 100ms response, it is optimized for laminar flow in cleanrooms, labs, and energy-saving HVAC systems.
