Duct wind speed sensor

[equipment name]: Pipeline wind speed sensor

Pipeline wind speed sensor is also called high-precision pipeline wind speed sensor. Pipeline wind speed sensor is mainly used for pipe wind speed measurement. The shell is made of high temperature resistant and anti-corrosion material to be used in harsh environments. Both temperature compensation and temperature compensation are realized digitally.

[Functional description]: Designed for pipeline wind speed measurement, the self-developed high-precision wind speed measurement unit is sensitive, can quickly and accurately measure small wind speeds, has good stability, small drift, and high precision. At the same time, the transmitter can calculate the real-time air volume value according to the measured pipe cross-sectional area.

[Detection principle]: The wind speed is measured by the principle of hot wire balance. The response speed is fast, and the starting wind speed is small.

[Calibration method]: Adopt the full-scale secondary calibration method independently developed by the company, with good linearity and high accuracy;

[Wiring method]: The wiring terminal adopts military-grade spring-type screw-free terminal, which can be connected by pressing and inserting. Even if there is no screwdriver on site, the wiring can be quickly connected, and the wire diameter can be adapted to 0.3 ~ 2.0mm2

Precautions for installation of duct type wind speed sensor:

①. Open-hole flange installation, using high-quality silicone sealing ring, small air leakage and durable;

②. Note that it needs to be installed on the side or bottom of the pipe, and cannot be installed from top to bottom.

③. First, punch a hole with a diameter of 20mm in the ventilation duct, insert the air duct into the hole, and adjust the direction of the equipment so that the arrow direction of the equipment is consistent with the direction of the wind speed (the direction of the wind). You can adjust the flange by adjusting the direction of the flange. Position controls the height of the device.

Measurement elements of duct type wind speed sensor:

①.Real-time pipeline wind speed;

②. RS485 type optional air volume value in the duct;

【Signal output】: RS485, 4-20ma, 0-5v, 0-10v

Duct wind speed sensor parameter modification:

①. The device address and baud rate can be changed through the 485 command, and the cross-sectional area of the pipeline can be set;

②, Model 485 can provide professional configuration tools to configure equipment parameters;

③, Model 485 can adjust the 485 slave station through the hardware dial switch.

[Probe line length]: The default line length is 1m, it can be long or short, the longest can be 100m, but there is no interference around the line body.

Duct type wind speed sensor device displays:

①. Optional organic light-emitting display, OLED screen with wider viewing angle, self-illumination, low power consumption.

②, Model 485 can display the current wind speed and related air volume in rotation.

③. The analog quantity type can display the current range and current wind speed in rotation.

[Power supply method]: 10-30V DC

[Maximum power consumption]: 0.5W

[Measurement medium]: air, nitrogen, oil fume exhaust gas

[Accuracy]: The accuracy of the measuring range 0~10m/s is ±(0.1+2%FS); the accuracy of the measuring range 0~15m/s, 0~20m/s, 0~30m/s is ±(0.2+2%FS) m/s;

[Circuit operating temperature]: -10℃~+50℃

[Wind speed display resolution]: 0.1m/s

[Response time]: 2S

[Long-term stability]: ≤0.1m/s/year