GVDA GD155 Digital Anemometer User Manual

September 22, 2024
GVDA

GVDA GD155 Digital Anemometer

Before using the instrument, please read this manual carefully. and save it well for future using.

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 ports, etc.

Display screen

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 the strong light directly shine on the fan, in order to avoid measurement errors.
  • Avoid violent vibration.
  • Remove the battery before strong the instrument ror a long time.

Operation

Wind speed measurement:

  1. Press   the button to turn on the power.
  2. Hold the anemometer and let the fan plane of the anemometer align vertically with the wind direction of the airflow for measurement.
  3. The display will show the wind speed, wind temperature, and wind humidity at the same time.

Data hold:
To freeze a displayed reading, press the 9 button. The icon will appear and the most recent reading will appear on the display. Press the  button to exit the mode and return to normal mode.

Backlight on or off:
Press the button and hold it for more than 2 seconds to enable or disable the backlight function.

MAXIMIN/AVG function

Press the  function, and then press the key to turn on the maximum key to cycle through the maximum, minimum, and average values. Long pressing the normal measurement function. key for 2 seconds returns to

Temperature unit selection : Press the key to select the temperature unit.

Wind speed unit selection:
Press the key to select the desired wind speed unit (m/s, km/h, mill/h, ft/m, ft’s, knots).

Auto shutdown function.
When the power is tumed on. the automatic shutdown function is tumed on by default. No operation within 10 minutes will automatically shut down.

If you need to cancel the auto-off function, press and hold the key before turning on the meter. then press the  key to turn on the power. and then release the key after the meter is turned on, the auto-off function will be canceled. Reboot to restore automatic shutdown function automatically.

When the meter turns on the auto-off function. the display will show the symbol: when the auto-off function is canceled, it will not show.

Specifications

Accuracy Specifications
Reference condition: the environment temperature is 180C to 280C. and the relative humidity is no more than 800/0

Maintenance

Battery replacement
When the meter shows the symbol  please replace the battery in time.

Cleaning

Caution
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.

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