1. Introduction

The wind measurement part of the handheld anemometer adopts microcomputer technology, which can simultaneously measure five parameters: instantaneous wind speed, instantaneous wind level, average wind speed, average wind level, and corresponding wave height. Many measures have been taken to reduce power consumption, greatly reducing the power consumption of the instrument. It has a data latch function for easy reading. Automatic north pointing devices are used in the wind direction section, eliminating the need for manual north pointing during measurement and simplifying the measurement process. This instrument has a small size, light weight, comprehensive functions, and low power consumption. It can be widely used in fields such as agriculture, forestry, environment, ocean, and scientific exploration to measure atmospheric wind parameters.

2. Main technical indicators

2.1 Wind speed index:

Wind speed measurement range: 0-30m/s

Sensor startup wind speed: 0.8m/s

Wind speed measurement accuracy: ± (0.3+0.03 ´ V) m/s (V actual wind speed)

Displayed wind speed parameters: instantaneous wind speed, average wind speed, instantaneous wind level, average wind level, corresponding wave height

Display resolution: 0.1m/s (wind speed)

Level 1 (Wind Scale)

0.1m (wave height)

2.2 Wind direction indicators:

Wind direction measurement range: 0-360 º in 16 directions

Wind direction sensor activated wind speed: 1.0m/s

Wind direction measurement accuracy: ± 1 azimuth

Wind direction to the north: automatic

2.3 Environmental indicators:

Working environment temperature: -10~45 º C

Working environment humidity: ≤ 100% RH (no condensation)

2.4 Power Supply:

Power supply voltage: 4.5V, 3 # dry batteries

Average power consumption current: ≤ 5mA (when the power supply voltage is 4.5V)

2.5 Dimensions and Weight:

Host size: 160mm ´ 70mm ´ 28mm

Overall dimensions: 405mm ´ 100mm ´ 100mm

Weight: 0.5kg

3. Instrument completeness:

One wind direction measurement component

1 wind speed sensor

1 instrument host

1 copy of product qualification certificate

1 copy of user manual

4. Warranty of instruments

If the instrument is used correctly and malfunctions occur due to manufacturing quality within one year after sale, our company will be responsible for free repairs. A reasonable maintenance cost fee will be charged for repairs after one year.