1. はじめに
The MR CARTOOL L202 Digital Manifold Gauge is a precision instrument designed for testing and maintaining HVAC and refrigeration systems. It provides accurate digital readings for pressure and temperature, supports a wide range of refrigerants, and features multiple operating modes for comprehensive system diagnostics. This manual provides detailed instructions for the safe and effective use of your L202 Digital Manifold Gauge.
Figure 1: MR CARTOOL L202 Digital Manifold Gauge
2. 安全情報
Please read and understand all safety warnings and instructions before operating the device. Failure to do so may result in injury or damage to the equipment.
- 冷媒を扱う際は、安全メガネや手袋などの適切な個人用保護具 (PPE) を常に着用してください。
- 冷媒を扱うときは適切な換気を行ってください。
- デバイスを極端な温度、湿気、腐食性の環境にさらさないでください。
- Handle refrigerant hoses and connections with care to prevent leaks and refrigerant release.
- デバイスの修理や改造は行わないでください。すべてのメンテナンスは資格のある担当者にお任せください。
- Ensure the system pressure does not exceed the maximum rated pressure of the gauge.
3. パッケージ内容
パッケージにすべてのアイテムが揃っていることを確認します。
- MR CARTOOL L202 Digital Manifold Gauge
- ユーザーマニュアル（このドキュメント）
Note: 9V batteries and refrigerant hoses are not included and must be purchased separately.
4.部品の識別
Familiarize yourself with the components of the L202 Digital Manifold Gauge:
Figure 2: L202 Digital Manifold Gauge Components
- ディスプレイインターフェイス： Shows pressure, temperature, refrigerant type, and battery level.
- ファンクションキー: Used for navigation, unit conversion, and mode selection.
- アウトレット接続： Port for connecting refrigerant hoses.
- オン/オフスイッチ： Controls the flow of refrigerant.
- Blue Low Pressure Rotation Button: Adjusts the low-pressure valve.
- 入口接続： Port for connecting refrigerant hoses.
- バッテリーカバー： バッテリー取り付けのためのアクセス。
- フック: For hanging the gauge during use.
5. セットアップ
5.1 バッテリーの取り付け
- Locate the battery cover on the back of the unit (refer to Figure 2, item 7).
- 電池カバーを開きます。
- 正しい極性を確認して、9V 電池を 1 個挿入します。
- 電池カバーをしっかりと閉じてください。
Note: If the battery compartment seems tight, ensure you are using a standard-sized 9V battery and inserting it correctly. Do not force the battery.
5.2 初期電源投入とセルフテスト
Press the power button to turn on the device. The gauge will perform a brief self-test, and the display will illuminate. Ensure the battery icon indicates sufficient power.
5.3 ホースの接続
Connect appropriate refrigerant hoses (not included) to the inlet and outlet connections (refer to Figure 2, items 3 and 6) of the manifold gauge. Ensure all connections are tight to prevent leaks.
図3：例ample Setup for HVAC System Testing
6. 操作
6.1 Selecting Refrigerant Type
The L202 has a built-in database of 90 refrigerants. Use the function keys to scroll through and select the appropriate refrigerant for your system (e.g., R134A, R410A, R1234YF). The gauge will display the corresponding saturation temperature data.
Figure 4: Built-in Refrigerant Database
6.2動作モード
The L202 features three primary operating modes:
Figure 5: Three Common Working Modes
- Refrigerant Measurement Mode: Displays real-time pressure and corresponding saturation temperature. This mode is essential for subcooling/superheating calculations and general system pressure monitoring.
- Vacuum Percentageモード： Used when pulling a vacuum on a system. It shows the vacuum level as a percentage, indicating the efficiency of the vacuum process.
- Leak Detection Mode: Assists in identifying potential leaks within the HVAC system by monitoring pressure changes over time.
6.3単位変換
The gauge supports multiple pressure and temperature units. Use the function keys to switch between:
- 圧力単位： KPa, Bar, PSI, InHg, KgF/cm²
- 温度単位: 摂氏 (°C)、華氏 (°F)
Figure 6: Unit Switching Display
6.4 バックライトの調整
The display backlight can be adjusted for optimal visibility. Short press the power key to cycle through brightness levels. The backlight will automatically switch off after 10 minutes of inactivity to conserve battery life.
図7: 画面の明るさを調整できる
7. 仕様
Technical specifications for the MR CARTOOL L202 Digital Manifold Gauge:
Figure 8: L202 Digital Manifold Gauge Specifications
| 特徴 | 仕様 |
|---|---|
| 圧力単位 | KPa, Bar, PSI, InHg, KgF/cm² |
| 温度単位 | °C、°F |
| テスト範囲 | 0 KPa ~ 6000 KPa |
| 解決 | 1 KPa |
| 正確さ | ±0.5% |
| オーバーロード | 10MPa |
| 動作温度 | -20℃～60℃ |
| オートパワーオフ機能 | 10 minutes |
| 本体寸法 | 150 x 90 x 60 mm (5.91 x 3.54 x 2.36 インチ) |
| アイテム重量 | 400グラム（14.11オンス） |
| 材料 | プラスチック |
| モデル番号 | L202 |
| 欧州連合 | 781159474989 |
8. メンテナンス
8.1 クリーニング
ソフトでデバイスを拭いてください、damp 布で拭いてください。研磨剤入りの洗剤や溶剤はディスプレイやコンピューターを損傷する恐れがあるため使用しないでください。asing.
8.2 ストレージ
When not in use, store the L202 Digital Manifold Gauge in a clean, dry place, away from direct sunlight and extreme temperatures. Remove the 9V battery if the device will not be used for an extended period to prevent battery leakage.
9。 トラブルシューティング
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| デバイスの電源が入りません。 | 9V 電池が切れているか、正しく取り付けられていません。 | 正しい極性を確認して 9V 電池を交換します。 |
| 不正確な圧力測定値。 | Gauge not properly calibrated or external factors. | Ensure all connections are secure. If readings remain inconsistent, consider professional calibration. Note that this gauge does not support micron readings for extreme precision. |
| 9V battery does not fit in compartment. | Incorrect battery size or orientation. | Verify you are using a standard 9V battery. Check the battery orientation and ensure it is inserted correctly without forcing. |
| 操作が分かりにくい。 | 機能に不慣れ。 | Review the 'Operation' section of this manual thoroughly. |
10. 保証とサポート
10.1 保証情報
MR CARTOOL products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or contact MR CARTOOL customer support.
10.2 カスタマーサポート
If you encounter any issues or have questions regarding your MR CARTOOL L202 Digital Manifold Gauge, please contact MR CARTOOL customer support. You can find more information and contact details on the official MR CARTOOL store page:
Figure 9: Applicable Usage Scenarios