MR CARTOOL B530
MR CARTOOL Automotive Power Circuit Probe Tester B530 User Manual
Model: B530 | Brand: MR CARTOOL
1. はじめに
The MR CARTOOL B530 Automotive Power Circuit Probe Tester is a versatile diagnostic tool designed for testing electrical systems in 6-30V vehicles. It offers multiple functions including voltage, polarity, continuity, and resistance testing, as well as component activation and short circuit detection. This manual provides detailed instructions for proper setup, operation, and maintenance of your device.

Figure 1: MR CARTOOL B530 Power Circuit Probe Tester with included accessories.
2. 安全情報
- 常に適切な目の保護具を着用してください。
- Ensure the vehicle's ignition is off before connecting or disconnecting the device, unless specific tests require power.
- Avoid contact with moving engine parts or hot surfaces.
- 損傷しているように見える場合は、ツールを使用しないでください。
- The tool is short-circuit protected; its internal circuit breaker will trip if overloaded.
- Perform a quick self-test before each use to ensure proper tool functionality.
3.製品オーバーview およびコンポーネント
The MR CARTOOL B530 consists of the main probe unit, a 33ft extension cable, and battery hookup clips. Key features include an LCD display, power switch, mode button, and built-in headlamps.

Figure 2: Detailed diagram of the B530 Power Circuit Probe Tester and its accessories.
3.1. 主な特徴
- プローブチップ: テスト対象の回路またはコンポーネントに接触します。
- ヘッドライト: 作業エリアを照らし、視認性を向上させます。
- 赤/緑のインジケーター: Lights up red for positive voltage, green for negative voltage.
- LCDディスプレイ: 番組内容tage, resistance, frequency, and other parameters.
- 電源スイッチ: Activates positive or negative battery current to the probe tip.
- モードボタン: さまざまなテスト モードを切り替えます。
4. セットアップ
4.1. 電源接続
The B530 circuit tester can be powered via the vehicle's battery or a cigarette lighter adapter. Connect the red battery clamp to the POSITIVE terminal of the vehicle's battery and the black clamp to the NEGATIVE terminal. Alternatively, use the provided cigarette lighter adapter.

Figure 3: Powering the B530 using either the car battery or a cigarette lighter.
4.2. Probe Assembly
Insert the probe tip securely into the main unit. Ensure a firm connection. The device will sound a beep and the headlights will illuminate upon initial connection to a power source, indicating it is ready for use.
5。 動作モード
The B530 features four primary operating modes, easily navigable via the mode button on the device. The upgraded navigation menu ensures clear readability.

図4:以上view of the four main test modes available on the B530.
5.1. DCVol。tageテスト
直流電圧を測定tage. The display shows the voltage reading. The red/green indicator lights will show polarity.

DCVol。tage Mode Display
5.2. ACVol。tageテスト
交流電流の測定tage, frequency, and duty cycle. Useful for diagnosing signal circuits.

ACVol。tage Mode Display
5.3. 耐性テスト
Measures the resistance of a circuit or component. An 'OL' (Open Line) reading indicates an open circuit.

Resistance Mode Display
5.4.ダイオードテスト
Tests the functionality of diodes. The display will show the forward voltage drop or 'OL' for an open circuit.

Diode Test Mode Display
6.操作手順
The B530 can perform various diagnostic tasks. Always ensure proper connection and select the correct mode for your test.

Figure 5: Visual representation of the B530's diverse testing capabilities.
6.1.巻tageおよび極性テスト
DC Vol.tage mode, touch the probe tip to a circuit. The LCD will display the voltage, and the red/green indicator lights will show the polarity (red for positive, green for negative). A beep tone will sound for negative voltage.
6.2.導通テスト
In Resistance mode, touch the probe tip to both ends of a circuit or component. A reading other than 'OL' indicates continuity. The green indicator light turns on when continuity is detected. 注記: Do not press the activation switch during continuity tests.
Video 1: Demonstration of Quick Self-test, Positive and Negative Test, and Continuity Test using a similar circuit probe tester.
6.3. Activating Components
With the probe tip connected to a component, press the power switch forward to supply positive voltage or backward to supply negative voltage. This allows for testing components like cooling fans or relays directly. The tool is short-circuit protected, preventing overload.
6.4. Following & Locating Short Circuits
The B530 can help trace and locate short circuits without wasting fuses. The long 33ft cable allows extensive reach across the vehicle.

Figure 6: The 33ft extension cable provides ample reach for testing.
Video 2: Demonstration of locating short circuits and tracing wires using a similar V210 tool.
7。 トラブルシューティング
- 電源なし: バッテリー残量を確保してくださいamps are securely connected to the correct terminals or the cigarette lighter adapter is fully inserted. Check the vehicle's power source.
- 間違った読み方: Verify the correct operating mode is selected for the test being performed. Ensure the probe tip has good contact with the circuit.
- 回路ブレーカーのトリップ: If the internal circuit breaker trips, it indicates an overload or short circuit. Allow the tool to cool, then press the reset button. Investigate the circuit for the cause of the overload.
- 音が出ない: Check the sound setting on the device. It may have been muted.
8. メンテナンス
- Keep the tool clean and dry. Wipe with a soft, damp 布。
- 極端な温度や直射日光にさらさないでください。
- Store the tool and accessories in the provided carry case when not in use.
- ケーブルや接続部に摩耗や損傷の兆候がないか定期的に点検してください。

Figure 7: The B530 comes with a durable carry case for convenient storage and transport.
9. 仕様
| 特徴 | 仕様 |
|---|---|
| モデル | B530 |
| 営業巻tage | 6-30V DC |
| ケーブル長さ | 33フィート(10メートル) |
| 電源 | Vehicle Battery or Cigarette Lighter |
| 機能 | 巻tage, Polarity, Continuity, Resistance, Diode, Component Activation, Short Circuit Detection |
| 安全性 | Short-circuit protected (internal circuit breaker) |
| 画面 | LCD with upgraded navigation menu |
| 色 | 緑 |
10. アプリケーション
The MR CARTOOL B530 is suitable for a wide range of vehicles and electrical systems, including:
- 車
- トラック
- オートバイ
- Other 6-30V vehicle electrical systems

Figure 8: The B530 is designed for use across various vehicle types.
11. 保証とサポート
MR CARTOOL offers a 24ヶ月間の無料保証 for the B530 Power Circuit Probe Tester. For any support or warranty claims, please contact MR CARTOOL customer service.
12. 言語オプション
The device supports 7 language options for user convenience:
- 英語
- イタリア語
- スペイン語
- ポルトガル語
- フランス語
- ドイツ語
- ロシア

Figure 9: The B530 offers multiple language selections for global users.