Hot wire air flow sensor
Model: LD751
Power supply: 24VDC
Communication port: 4-20mA / RS485 / 0-10V
Wind speed range: 0-50m/s (Customizable)
Description:
This Hot film air flow sensor requires very little air volume, and its performance is stable and reliable even in harsh environments. Compared with other traditional wind speed sensors, it can achieve better stability and ensure faster and accurate micro-air volume measurement and accuracy; The shell is made of high temperature resistant and anti-corrosion material, with no zero point drift and excellent long-term stability, making it more cost-effective. In addition, this series of transmitters can withstand transient high wind speeds and high wind pressures.
Features
- Widely used: suitable for gas micro differential pressure detection, duct air velocity detection and micro-pressure gas detection scenarios.
- Convenient installation: adopts professional pipeline mounting method, equipped with Pitot tube for use, easy to operate.
- Good compatibility: supports standard current, voltage and S485 signal output, compatible with most industrial control equipment.
- Stable and reliable: characterized by small drift, stable performance and reliable quality.
- Convenient calibration: supports secondary calibration of zero point and linearity, easy to operate.
- Reasonable structure: the product structure is reasonable, providing a good using experience.
Application
- Mainly used in HVAC heating and ventilation air conditioning, filter pressure drop monitoring, power plant flue gas treatment, textile, chemical, aviation duct air flow, variable air volume system, operating room, clean room, biological laboratory, pharmaceutical environment, farms and other fields, the product application is very wide.
Specifications
| Product name | Air velocity sensor |
| Model | LD751 |
| Power supply | 24VDC |
| Wind speed range | 0-50m/s (customizable) |
| Communication port | 4-20mA / RS485 / 0-10V |
Product Display:
What is an air velocity sensor?
Air velocity sensors are ideal for providing real-time feedback in air cooled systems when flow verification is key to maintaining a stable and reliable operation. With an air velocity sensor, hardware issues like fan failures can be quickly identified before critical electronic components overheat.
How does air velocity work?
This tells us that air velocity may be determined by differences in pressure or temperature. Molecules move from spaces of high pressure and high temperature towards spaces of lower temperature and lower pressure. The greater the difference in pressure or temperature, the higher the air velocity.
How does an air sensor work?
A hot wire air flow sensor is a more common type of air flow sensor typically used in engines that works by measuring the change in resistance of a hot wire. A thin wire is heated at a constant temperature and placed in the path of air flow which cools it down in a manner that is proportional to the rate of air flow.
What is the difference between air flow and air velocity?
Flow is a measure of air output in terms of volume per unit of time. The common units are litres per minute, cubic feet per minute (CFM), etc. Velocity refers to how fast the air is moving in distance per unit of time. The common units are feet per second, metres per second, etc.
