Walfront HT625B Digital Anemometer User Manual

1. Introduction

Thank you for choosing the Walfront HT625B Digital Anemometer. This handheld device is designed for precise measurement of wind speed, air volume, temperature, and humidity. It is suitable for various applications including wind power generation, nautical measurements, outdoor environment detection, and ventilation system analysis. This manual provides detailed instructions for the safe and effective use of your anemometer.

Image 1.1: Walfront HT625B Digital Anemometer, USB cable, and carrying case.

2. Important Safety Information

Please read and understand all safety warnings and operating instructions before using this product. Failure to follow these instructions may result in electric shock, fire, or serious injury.

• Do not attempt to repair or modify the device. Refer all servicing to qualified personnel.
• Ensure proper battery polarity when installing batteries.
• Remove batteries if the device will not be used for an extended period to prevent leakage.
• Avoid exposing the device to extreme temperatures, direct sunlight, high humidity, or corrosive environments.
• Keep the device away from strong magnetic fields.
• Do not block the fan blades or attempt to stop them manually during operation.

3. Product Overview

The HT625B Digital Anemometer features a compact design with an intuitive interface for ease of use. Key components are outlined below.

Image 3.1: Labeled components of the HT625B Digital Anemometer.

Components:

• Fan Blades: Measures wind speed and air volume.
• Thermal Sensor: Detects ambient temperature.
• Display: High-definition color screen for readings and indicators.
• Power Button (①): Turns the device on and off.
• UNIT Button: Changes measurement units.
• DP/WS Button (Data Hold/Wet Bulb/Dew Point): Activates data hold, switches between Wet Bulb and Dew Point temperature.
• FUNC Button (Function/Max/Min/Avg): Cycles through Maximum, Minimum, and Average readings.
• REC Button (Record): Initiates data recording.
• USB Port: For data transfer to a computer.

4. Technical Specifications

The following table details the technical specifications and measurement ranges of the Walfront HT625B Digital Anemometer.

Image 4.1: Detailed product parameters and specifications.

5. Initial Setup

5.1. Battery Installation

The HT625B anemometer requires three (3) 1.5V AAA batteries for operation.

1. Locate the battery compartment cover on the back of the device.
2. Slide or unclip the cover to open the compartment.
3. Insert three AAA batteries, ensuring correct polarity (+ and -) as indicated inside the compartment.
4. Replace the battery compartment cover securely.

Image 5.1: Battery compartment with 3x AAA batteries.

6. Operating Instructions

6.1. Power On/Off

• To power on: Press the red Power Button (①).
• To power off: Press and hold the red Power Button (①) for approximately 2 seconds. The device also features an auto-off function to conserve battery power.

6.2. Basic Measurement

Once powered on, the device will immediately begin displaying real-time wind speed, temperature, and humidity readings. Ensure the fan blades are unobstructed and facing the airflow for accurate wind measurements.

6.3. Changing Measurement Units

Press the UNIT button to cycle through available units for wind speed (m/s, km/h, ft/s, Knots, Mile/h, ft/m) and temperature (℃ / ℉).

6.4. Data Hold Function

To freeze the current reading on the display:

• Press the DP/WS button briefly. The 'HOLD' indicator will appear on the screen.
• Press the DP/WS button again to release the data hold and resume real-time measurements.

6.5. Max/Min/Avg Readings

To view maximum, minimum, or average recorded values:

• Press the FUNC button repeatedly to cycle through MAX (maximum), MIN (minimum), and AVG (average) readings.
• The corresponding indicator (MAX, MIN, AVG) will appear on the display.
• Press FUNC again to return to real-time measurement.

6.6. Dew Point and Wet Bulb Temperature

While in temperature measurement mode, press and hold the DP/WS button to switch between Dew Point and Wet Bulb temperature displays.

6.7. Backlight

The display features a backlight for improved visibility in low-light conditions. The backlight typically activates automatically when the device is powered on and may have an auto-off feature to save power.

7. Maintenance

Proper maintenance ensures the longevity and accuracy of your anemometer.

• Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure the fan blades are free from dust and debris.
• Storage: Store the device in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for an extended period, remove the batteries.
• Battery Replacement: Replace batteries when the low battery indicator appears on the display to ensure continuous accurate operation.

8. Troubleshooting

If you encounter issues with your Walfront HT625B Digital Anemometer, refer to the following common problems and solutions:

• Device does not power on:
  • Check if batteries are installed correctly with proper polarity.
  • Replace with fresh AAA batteries.
• Inaccurate readings:
  • Ensure the fan blades are clean and unobstructed.
  • Verify the device is positioned correctly in the airflow.
  • Allow the device to stabilize in the environment for a few minutes, especially for temperature and humidity readings.
• Display is blank or dim:
  • Check battery level and replace if low.
  • Ensure the device is not exposed to extreme temperatures that might affect the LCD.
• Buttons are unresponsive:
  • Try removing and reinserting the batteries to reset the device.

9. Warranty and Customer Support

Walfront products are manufactured to high-quality standards. While specific warranty details are not provided in this manual, please retain your purchase receipt as proof of purchase. For technical assistance, troubleshooting beyond this guide, or warranty inquiries, please contact your retailer or the Walfront customer support team through their official channels.