1. Introduction
Thank you for choosing the BTMETER BT-100 Digital Handheld Anemometer. This device is designed for accurate measurement of wind speed, wind temperature, and wind chill. Its portable, lightweight design makes it suitable for various applications, from HVAC system diagnostics to outdoor activities.
The BT-100 features a bright backlit LCD screen, low battery indicator, and multiple measurement units for convenience. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance.
What's Included:
- BTMETER BT-100 Digital Anemometer
- Neck strap
- 2 x 1.5V AAA batteries
- Convenient carry bag
- Instruction manual
Figure 1: Package Contents of the BTMETER BT-100 Anemometer
2. Safety Information
- Do not attempt to disassemble or modify the device.
- Keep the device away from water and high humidity environments.
- Avoid exposing the device to extreme temperatures or direct sunlight for prolonged periods.
- Ensure batteries are inserted with correct polarity. Remove batteries if the device will not be used for an extended period.
- Keep out of reach of children.
3. Product Overview
Figure 2: BTMETER BT-100 Anemometer Labeled Parts
- Fan Blades: Measures wind speed. Features 8 sensitive blades for accurate readings.
- LCD Screen: Digital display for readings, units, and indicators.
- Power On/Off Button: Turns the device on and off.
- UNIT Button: Cycles through wind speed units (m/s, km/h, ft/min, knots, mph).
- MAX/MIN Button: Displays maximum or minimum recorded wind speed.
- °F/°C Button: Switches between Fahrenheit and Celsius temperature units.
- AVG Button: Displays average wind speed.
- Backlight Button: Activates/deactivates the LCD backlight.
- Tripod Hole: 1/4-inch metal screw hole for mounting on a tripod.
4. Setup
4.1 Battery Installation
- Locate the battery compartment on the back of the device.
- Use a small Phillips head screwdriver (not included, but often provided with similar devices) to unscrew the battery cover.
- Insert two 1.5V AAA batteries, ensuring correct polarity (+/-).
- Replace the battery cover and secure it with the screw.
4.2 Attaching the Neck Strap
- Locate the small loop hole at the bottom of the device.
- Thread the thin end of the neck strap through the loop.
- Pass the thicker part of the strap through the threaded loop to secure it.
4.3 Tripod Mounting (Optional)
The BTMETER BT-100 features a 1/4-inch metal screw hole at the bottom, allowing it to be mounted on a standard tripod for continuous, hands-free measurements.
Figure 3: Tripod Mounting Option
5. Operating Instructions
5.1 Power On/Off
- To turn on: Press the Power On/Off button once. The LCD screen will activate.
- To turn off: Press and hold the Power On/Off button for 2 seconds.
- The device also features an automatic power-off function after 14 minutes of inactivity to conserve battery life.
5.2 Wind Speed Measurement
Hold the device so that the wind flows directly through the fan blades. The wind speed will be displayed on the LCD screen.
5.3 Unit Selection
Press the UNIT button to cycle through the available wind speed units:
- m/s (meters per second)
- km/h (kilometers per hour)
- ft/min (feet per minute)
- knots
- mph (miles per hour)
5.4 Temperature Measurement
The device displays ambient temperature. To switch between Fahrenheit and Celsius:
- Press the °F/°C button.
5.5 Backlight Function
To activate or deactivate the LCD backlight:
- Press the Backlight button. The backlight will automatically turn off after 12 seconds if no other button is pressed.
Figure 4: HD Backlit Screen for Clear Readability
5.6 MAX/MIN/AVG Modes
The device can display maximum, minimum, and average wind speeds:
- Press MAX/MIN to toggle between maximum and minimum wind speed readings.
- Press AVG to display the average wind speed.
6. Applications
The BTMETER BT-100 is a versatile tool suitable for a wide range of applications:
- HVAC Systems: Measure air flow velocity in ducts and vents for installation and diagnostics.
- Drone Operation: Monitor wind conditions for safe drone flying, RC planes, wings, helicopters, and quads.
- Outdoor Activities: Ideal for shooting, boat sailing, kite flying, climbing, and other activities where wind speed is a critical factor.
- Wind Chill Monitoring: Provides wind chill indication when temperatures are below 0°C (32°F).
Figure 5: Diverse Applications of the BT-100 Anemometer
7. Maintenance
7.1 Cleaning
Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
7.2 Storage
Store the device in its provided carry bag in a cool, dry place when not in use. Remove batteries if storing for extended periods.
7.3 Battery Replacement
When the low battery indicator appears on the LCD, replace the AAA batteries as described in Section 4.1.
8. Troubleshooting
8.1 No Display / Device Not Turning On
- Check if batteries are correctly installed with proper polarity.
- Replace with fresh AAA batteries.
8.2 Inaccurate Readings
- Ensure the fan blades are unobstructed and clean.
- Verify the correct measurement unit is selected.
- Ensure the device is held directly into the airflow for accurate wind speed readings.
8.3 "Er2" Error Message
- This indicates a low battery level. Replace the AAA batteries.
9. Specifications
| Feature | Specification |
|---|---|
| Wind Speed Range | 0.67~67.1 mph (0.3~30 m/s) |
| Wind Speed Accuracy | ±2% of readings |
| Wind Speed Resolution | 0.1 m/s |
| Temperature Range | 14℉-113℉ (-10~60℃) |
| Temperature Accuracy | ±2℃ (±3.56℉) |
| Temperature Resolution | 0.2℃ |
| Power Source | 2 x 1.5V AAA batteries |
| Product Dimensions | 6.49 x 3.34 x 1.49 inches |
| Item Weight | 8.82 ounces (250 Grams) |
| Material | Plastic |
10. Warranty and Support
BTMETER is committed to providing high-quality instruments. While specific warranty details are not provided in the product information, the manufacturer states that for any quality problems, they will replace the unit. For further support or inquiries, please refer to the contact information provided with your product packaging or visit the official BTMETER website.