1overview

The DF100 wind speed transmitter uses a high-precision differential pressure sensor as the core component. According to the Bernoulli equation theorem, the dynamic pressure is proportional to the square of the flow velocity and converted to wind speed. The maximum wind speed can be measured from 0 to 100m/s. The product has a custom range function, and customers can adjust the required range on site according to their actual needs, fully meeting the on-site requirements; At the same time, it has functions such as anti jumping, anti condensation, corrosion and temperature resistance, and is easy to install and customizable.

2、 Application scenarios

Widely used in wind tunnel experimental equipment, and also applicable to industries such as HVAC unit filter monitoring, VAV air conditioning system and fan control, machine room ventilation, furnace fan ventilation monitoring and control.

3、 Product Features

Six advantages of DF100 wind speed transmitter:

Maximum wind speed 0~100m/s

Zero point can be automatically calibrated

Wind pressure and speed can be freely switched, with built-in conversion formulas

High precision and high stability, turbulence treatment, wide range

Circuit isolation and strong anti-interference ability

Multiple types of interception components to choose from

4、 Main technical parameters

Power supply: 24VDC

Measurement accuracy: ± (0.2m/s+3% * measurement value)

Output signal: 4~20mA, 0~10V RS485(ModBus)

Display mode: LCD display with 5 digits

Working temperature:- 20~80℃

Temperature drift: 0.03%/℃

Shell material: High quality ABS

Intercepting components: optional or customized air flow strips, pitot tubes, etc

Installation direction: Vertical installation

Measurement medium: dry air and non flammable gas

Protection level: IP65

Maximum Overvoltage: Range FS * 10

5、 External dimensions

6、 Electrical connection

1. Two wire system wiring

2. Three wire wiring system

3. four-wire systemRS485/4~20mA dual output wiring

7、 Maintenance precautions

The transmitter encountered abnormal situations during debugging and use. Please callObtain technical support. The self inspection method is as follows:

1) Check if the power supply of the transmitter is normal.

2) Connect the ammeter in series to the 24V power circuit and check if there is an output current and if the current value output is normal.

Please follow the relevant instrument safety operating procedures throughout the entire use of the product.

8、 Selection List

For example, product code DF100-1-A-1 represents model DF100, with a range of 0-5m/s, an output of 4-20mA, and a lead length of 1M.

9、 Selection of interception components

You can choose Dewey PT series pitot tube Dewey, PF series air flow bar. For detailed information, please log inwww.duwei.com.cnOfficial website search.

The schematic diagram of PT series pitot tube is shown below:

The schematic diagram of PF series air flow bar is shown in the following figure:

• Dewey DF100 Wind Speed Transmitter Selection Manual. pdf