1.製品オーバーview
The BTMETER BT-846A is a professional HVAC anemometer designed for accurate measurement of wind velocity, air flow (CFM/CMM), and temperature. It features a separated, extendable wind sensor for flexible measurements and a large backlit LCD display for clear readings. This device is suitable for HVAC troubleshooting, air flow balancing, and various industrial or educational applications requiring precise air movement data.
Figure 1: BTMETER BT-846A Anemometer with its detachable vane sensor.
2. パッケージ内容
Before use, please verify that all items are present and in good condition. If any items are missing or damaged, contact customer support.
- 1 x BTMETER BT-846A Anemometer Main Unit
- 1 x Detachable Vane Sensor
- 1 x USB Cable (for sensor connection)
- 1 x 9Vバッテリー
- 小型ドライバー1本
- 取扱説明書 x 1
- 1 x Carrying Storage Case
Figure 2: Contents of the BTMETER BT-846A package.
3. セットアップ
3.1 バッテリーの取り付け
- 本体背面の電池ケースカバーの位置を確認します。
- Use the provided small screwdriver to unscrew the two screws securing the battery cover.
- 電池カバーを取り外します。
- Connect the included 9V battery to the battery clips, ensuring correct polarity.
- Carefully place the battery into the compartment, ensuring the wires are not pinched.
- Replace the battery cover and secure it with the two screws.
図3：背面 view of the anemometer, showing the battery compartment and tripod mounting hole.
3.2 Connecting the Vane Sensor
- Locate the USB port on the side of the main unit, protected by a rubber cover.
- ゴムカバーを慎重に開けます。
- Connect the USB plug of the vane sensor cable into the USB port of the main unit.
- 安全な接続を確保してください。
Figure 4: Connecting the vane sensor to the main unit via the USB cable.
4. 操作手順
4.1 電源オン/オフ
を押し続けます 力 button (labeled with a circle and vertical line) to turn the device on or off. The device will automatically power off after 5 minutes of inactivity to conserve battery life.
4.2 Measuring Wind Velocity and Temperature
- Ensure the vane sensor is connected.
- Point the vane sensor into the air flow you wish to measure. The display will show real-time wind velocity and temperature readings.
- To change wind velocity units (m/s, km/h, ft/min, knots, mph), press the ユニット ボタン。
- To switch temperature units between Celsius (°C) and Fahrenheit (°F), press the °C /°F ボタン。
Figure 5: Measuring wind velocity and temperature with the anemometer.
4.3 Measuring Air Flow (CFM/CMM)
To measure air flow, you need to input the cross-sectional area of the duct or vent.
- を押す レベル/フロー button to enter CFM/CMM mode.
- を押す ユニット button to select between FT² (for CFM) or M² (for CMM).
- を押す SAMPLE AREA button to input the cross-sectional area. Use the arrow keys to adjust the value and オプション入力 確認します。
- Once the area is set, the device will display the air volume in CFM or CMM.
Video 1: Demonstration of how to measure CFM on the BTMETER BT-846A.
4.4 Data Hold, Max/Min/Avg Readings
- を押す 所有 ボタンを押すと、ディスプレイの現在の表示が固定されます。もう一度押すと解除されます。
- を押す 最大/最小 button to cycle through Maximum, Minimum, and Average wind velocity/flow readings.
4.5バックライト
を押す ライト button to turn the display backlight on or off. The backlight will automatically turn off after a short period to save battery life.
4.6 Data Recording and PC Connection
The device can record up to 600 groups of wind data. To utilize this feature and connect to a PC for real-time measurement or data download, use the provided USB cable and software (available via CD or download link).
- プレス 記録 to start/stop data recording.
- プレス 読む に view 記録されたデータ。
- Connect the main unit to your PC using the USB cable. Install the provided software to access recorded data and real-time measurements.
5. メンテナンス
- クリーニング： 柔らかく乾いた布で拭いてください。研磨剤入りの洗剤や溶剤は使用しないでください。
- ストレージ： Store the anemometer in its carrying case in a dry, cool environment when not in use for extended periods. Remove the battery if storing for a long time to prevent leakage.
- センサーの交換: The separated wind speed sensor can be replaced if it becomes damaged, extending the service life of the main unit. Contact customer support for replacement parts.
6。 トラブルシューティング
- デバイスの電源が入らない: 9V電池が正しく取り付けられ、十分に充電されているか確認してください。必要に応じて交換してください。
- 不正確な読み取り: Ensure the vane sensor is clean and free from obstructions. Verify that the correct measurement units and cross-sectional area (for CFM/CMM) are selected.
- 表示の問題: If the display is blank or shows erratic readings, try replacing the battery. Ensure the sensor cable is securely connected.
- バックライトがすぐに消える: This is a design feature to conserve battery. Press the LIGHT button to reactivate the backlight.
- PC 接続の問題: Ensure the USB cable is properly connected to both the anemometer and the computer. Verify that the software is correctly installed.
7. 仕様
| 特徴 | 仕様 |
|---|---|
| ブランド | BTメーター |
| モデル番号 | BT-846A |
| 風速範囲 | 0.001~100 mph (0.3~45 m/s) |
| Wind Velocity Accuracy | ±3% ±0.2 reading |
| Wind Velocity Resolution | 0.001メートル/秒 |
| 風速範囲（CFM） | 0～999900 ft³/分 |
| 風向範囲（CMM） | 0～999900 m³/分 |
| エアフローエリア | 0.001～9999平方フィート |
| 温度範囲 | 32.0〜113.0°F（0〜45°C） |
| 温度精度 | ±1°C（±1.8°F） |
| 温度分解能 | 0.1°C /°F |
| データ記録容量 | 600グループ |
| 電源 | 1Vバッテリー9個（付属） |
| 自動電源オフ | 5分間操作がない場合 |
| 寸法（長さ×幅×高さ） | 3.4 x 1.5 x 6.5インチ |
| アイテム重量 | 1.65ポンド |
| 材料 | アクリロニトリルブタジエンスチレン（ABS） |
8. 保証とサポート
The BTMETER BT-846A Anemometer comes with a 12ヶ月保証 for any quality problems. For technical support, warranty claims, or replacement parts, please contact BTMETER customer service through their official web製品を購入したサイトまたは小売店。