GVDA GD155

Contents

GVDA GD155 Digital Anemometer User Manual

Model: GD155 | Brand: GVDA

1. Introduction

This is a professional digital anemometer with stable performance, safety, and reliability. It is widely used in wind energy, meteorology, industry, agriculture, hydrology and water conservancy, environmental protection, highways, airports, and ports, etc. This device measures wind speed, temperature, and humidity simultaneously.

GVDA GD155 Digital Anemometer front view
GVDA GD155 Digital Anemometer

2. Safety Information

Considerations

  • Do not touch the fan blade with force.
  • Do not store or operate the instrument in areas with high temperature or humidity.
  • In use, do not let strong light directly shine on the fan, to avoid measurement errors.
  • Avoid violent vibration.
  • Remove the battery before storing the instrument for a long time.

3. Product Overview

Display Screen Symbols

SymbolDescription
HData hold
MAXMaximum value
MINMinimum value
AVGAverage value
°CCelsius
°FFahrenheit
%RHHumidity unit
m/s, km/h, mil/h, ft/m, ft/s, knotsUnits of wind speed
Wind speed simulation barGraphical representation of wind speed
Battery iconLow battery indicator
Power iconAutomatic shutdown indicator

Components

Product components: Gift Box, Bag, Digital Anemometer, Manual
The product package includes: 1. Gift Box, 2. Bag, 3. Digital Anemometer, 4. Manual.
Labeled parts of the anemometer: Comfort key, Battery compartment, Low bearing fan blades
Key components: 01 Comfort key, 02 Battery compartment (battery not included), 03 Low bearing fan blades.
Dimensions of the GVDA GD155 Digital Anemometer
Dimensions: 142mm (height), 26mm (thickness), 58mm (width).
2.4-Inch HD LCD with Backlight display
The device features a 2.4-inch HD LCD with backlight for clear readings.
Eight fan blades with high-quality wheel shaft
The anemometer is equipped with eight high-quality fan blades for accurate measurement.

4. Setup

Battery Installation

The device requires 3 x 1.5V AAA (LR03) batteries (not included).

  1. Unscrew the battery cover on the back of the device.
  2. Open the battery cover.
  3. Remove any old batteries from the battery compartment.
  4. Install new batteries correctly, observing the positive and negative marks on the bottom of the battery compartment.
  5. Reinstall the battery cover and fasten the screws to secure it.

5. Operation

Wind Speed Measurement

  1. Press the Power button to turn on the device.
  2. Hold the anemometer and ensure the fan plane is aligned vertically with the direction of the airflow for accurate measurement.
  3. The display will show the wind speed, wind temperature, and wind humidity simultaneously.
Anemometer displaying wind speed, temperature, and humidity
Simultaneous display of temperature, humidity, and wind speed.

Data Hold

To freeze a displayed reading, press the H/ button (less than 1 second). The "H" icon will appear, and the most recent reading will be held on the display. Press the H/ button again (less than 1 second) to exit this mode and return to normal measurement.

Backlight Control

Press and hold the H/ button for more than 2 seconds to enable or disable the backlight function.

MAX/MIN/AVG Function

Press the MAX/MIN button (less than 1 second) to activate the maximum function. Subsequent presses will cycle through maximum, minimum, and average values. Long press the MAX/MIN button (more than 1 second) to return to normal measurement.

Temperature Unit Selection

Press the °C/°F key to switch between Celsius (°C) and Fahrenheit (°F) temperature units.

Wind Speed Unit Selection

Press the UNIT key to select the desired wind speed unit from m/s, km/h, mil/h, ft/m, ft/s, or knots.

Wind speed unit selection display examples
Examples of wind speed unit displays.

Auto Shutdown Function

When the device is powered on, the automatic shutdown function is enabled by default. It will automatically shut down after 10 minutes of no operation.

Auto Power Off feature with 10 min timer
The device will auto power off in 10 minutes without any operation.
  • To cancel the auto-off function: Press and hold the Power button before turning on the meter, then press the Power button to turn on the device. Release the Power button after the meter is turned on. The auto-off function will be canceled.
  • To restore the auto-off function: Simply turn on the power again.
  • When auto-off is active, the display will show a power icon symbol. When canceled, it will not show.

Product Demonstration Video

A short video demonstrating the operation and features of the GVDA GD155 Digital Anemometer, including button functions and wind speed measurement.

6. Specifications

General Specifications

FeatureDescription
DisplayLCD, Max display 9999
Air velocity range0.70~30.00 m/s
Sampling rateOne reading per 0.5 Sec.
SensorAir velocity/flow sensor: angled vane arms with bearing
Max/Min/AvgMinimum, maximum, average measurement
Data holdFreeze reading
Operating conditions (Temperature)0~40°C
Operating conditions (Humidity)<80%RH
Storage conditions (Temperature)-10~50°C
Storage conditions (Humidity)<80%RH
Auto power off10 minutes
Power3 x 1.5V AAA (LR03) batteries
CertificationsCE, FCC, RoHS

Accuracy Specifications

The accuracy applies within one year after calibration. Reference condition: the environment temperature 18°C to 28°C, the relative humidity is no more than 80%.

MeasurementRangeResolutionAccuracy
Air velocity (m/s)0.70~30.000.01< 1.00m/s: ±0.7 m/s
1.00~30.00 m/s: ±(2.0%+ 0.5m/s)
Air velocity (km/h)2.50~108.00.01~0.1
Air velocity (mil/h)1.50~67.100.01
Air velocity (ft/s)2.30~98.500.01
Air velocity (ft/m)137.0~59000.1~1
Air velocity (knots)1.30~58.300.01
Temperature-20.0°C~60.0°C (-4.0°F~140.0°F)0.1°C/°F0.0~45.0°C: ±1.0°C
others: ±1.5°C
Humidity0.0% ~99.9%RH0.1%RH20%~80% RH: ±5.0%RH
others: ±6.0%RH

For a complete list of specifications, please refer to the full user manual PDF.

7. Maintenance

Battery Replacement

When the meter shows the low battery symbol, please replace the batteries promptly. Follow the steps in the Setup section for battery installation.

Cleaning

  • To avoid damaging the case, do not use corrosive agents or solvents to clean the instrument.
  • Wipe the shell regularly with detergent or a damp cloth and detergent.

8. Troubleshooting

If you encounter any issues not covered in this manual, please refer to the full user manual PDF or contact customer support.

9. Warranty and Support

This product comes with a 24-month manufacturer's limited warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.

For further assistance, please refer to the official GVDA website or contact their customer support.

A detailed user manual is available in PDF format: View User Manual (PDF)


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