1. はじめに
The Danfoss MBS 3000 is a compact, heavy-duty pressure transmitter designed for reliable pressure measurement in demanding industrial and hydraulic environments. It offers high accuracy and stability, even under harsh conditions, making it suitable for a wide range of applications including pumps, compressors, pneumatic systems, water treatment, and HVAC. This manual provides essential information for the safe and effective installation, operation, and maintenance of your MBS 3000 pressure transmitter.
図1：以上view of the Danfoss MBS 3000 Pressure Transmitter.
2. 安全情報
Read this manual carefully before installing or operating the device. Failure to follow these instructions may result in equipment damage, personal injury, or death.
- 設置およびメンテナンスは資格のある担当者のみが行う必要があります。
- 電気接続を行う前に、電源が切断されていることを確認してください。
- Verify that the pressure range of the transmitter matches the application requirements to prevent overpressure damage.
- Do not exceed the specified operating temperature limits.
- The device is designed for use in zone 2 explosive atmospheres; however, ensure all local regulations and safety standards for such environments are strictly adhered to.
3 製品の特徴
The Danfoss MBS 3000 pressure transmitter incorporates several key features for robust and accurate performance:
- Designed for severe industrial and hydraulic environments.
- キャビテーション、液体ハンマー、圧力ピークに対する耐性があります。
- Enclosure and wetted parts constructed from acid-resistant stainless steel.
- Temperature-compensated and laser calibrated for high accuracy.
- Suitable for use in zone 2 explosive atmospheres.
- Wide range of pressure and electrical connections available.
- Standard output signals include 4-20 mA, 0-5 V, 1-5 V, 1-6 V, 0-10 V, and 1-10 V.
Figure 2: Key features of the MBS 3000 transmitter.
4. セットアップとインストール
Proper installation is crucial for the accurate and reliable operation of the MBS 3000 pressure transmitter.
4.1. Mechanical Installation (Pressure Connection)
The MBS 3000 features a G 1/4" pressure connection.
- Ensure the pressure port and mating connection are clean and free from debris.
- Apply appropriate thread sealant if necessary, according to system requirements.
- Carefully screw the transmitter into the pressure port. Do not overtighten. Refer to the system's torque specifications.
- Ensure the transmitter is securely mounted to prevent vibration-induced damage.
Figure 3: Detail of the G 1/4" pressure connection.
4.2. Electrical Installation (DIN Plug)
The electrical connection is made via a standard DIN plug.
- Disconnect power to the circuit before making any electrical connections.
- Wire the DIN plug according to the wiring diagram provided with your specific model or system documentation. The standard output signal is 4-20 mA.
- Ensure correct polarity for power supply and signal lines.
- Securely attach the DIN plug to the transmitter's electrical connector.
- Verify all connections are tight and properly insulated to maintain the IP65 enclosure rating.
Figure 4: Electrical connection via DIN plug.
5. 操作手順
Once properly installed and powered, the MBS 3000 pressure transmitter will begin to measure pressure and output a corresponding signal.
- パワーアップ： The transmitter has a power-up time of less than 50 ms.
- 信号出力： The standard output is 4-20 mA, linearly proportional to the measured pressure range (e.g., 4 mA for 0 bar, 20 mA for 16 bar). Other output signals (0-5 V, 1-5 V, 1-6 V, 0-10 V, 1-10 V) may be configured depending on the specific model.
- 監視： Connect the output signal to a compatible control system, PLC, or display unit to monitor the pressure readings.
- 応答時間: The device has a fast response time of less than 4 ms, ensuring quick and accurate pressure updates.
6. メンテナンス
The Danfoss MBS 3000 is designed for minimal maintenance. However, periodic checks can help ensure long-term reliability.
- 目視検査: Regularly inspect the transmitter for any signs of physical damage, corrosion, or loose connections.
- 接続の整合性: Ensure the electrical and pressure connections remain tight and free from leaks.
- クリーニング： 必要に応じて、送信機の外側を柔らかくて乾いた布で拭いてください。amp 布で拭いてください。研磨剤や溶剤は使用しないでください。
- 再校正： While the MBS 3000 is factory calibrated, periodic recalibration may be required depending on application demands and regulatory requirements. Consult a qualified technician for recalibration services.
7。 トラブルシューティング
This section provides general guidance for common issues. For complex problems, contact Danfoss technical support.
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| 出力信号なし | No power supply; incorrect wiring; damaged cable; faulty transmitter. | 電源volを確認してくださいtage; verify wiring against diagram; inspect cable for damage; replace transmitter if faulty. |
| 不正確な測定値 | Incorrect calibration; sensor contamination; pressure fluctuations; electrical interference. | Check calibration; ensure media compatibility; stabilize pressure source; check for proper grounding and shielding. |
| 断続的な信号 | Loose electrical connection; intermittent power supply; excessive vibration. | Secure all electrical connections; check power supply stability; reduce vibration or isolate transmitter. |
8. 技術仕様
| パラメータ | 価値 |
| ブランド | ダンフォス |
| モデル | 3000 円 |
| 測定範囲 | 0～16バール |
| Standard Output Signal | 4-20 mA (Other options: 0-5 V, 1-5 V, 1-6 V, 0-10 V, 1-10 V) |
| 圧力接続 | G 1/4インチ |
| 電気的接続 | DIN plug |
| 動作温度 | Normal: -40 °C to +85 °C; ATEX Zone 2: -10 °C to +85 °C |
| Accuracy (typ./max.) | ≤ ± 0.5% FS (typ.) / ≤ ± 1% FS (max.) |
| Hysteresis and Repeatability | ≤ ± 0.1% FS |
| Thermal Zero Point Shift (typ./max.) | ≤ ± 0.1% FS / 10K (typ.) / ≤ ± 0.2% FS / 10K (max.) |
| 応答時間 | < 4 ミリ秒 |
| Overload Pressure (static) | 6 × FS（最大1500バール） |
| 破裂圧力 | 6 × FS（最大2000バール） |
| パワーアップタイム | < 50 ミリ秒 |
| Durability (P: 10 – 90% FS) | > 10 × 106 サイクル |
| 絶縁抵抗 | 500 V DCで100 MΩ以上 |
| エンクロージャ定格 | IP65 |
| 正味重量 | 0.2～0.3kg |
| 原産国 | デンマーク |
9. アプリケーション
The Danfoss MBS 3000 pressure transmitter is versatile and suitable for a broad range of industrial and hydraulic applications, including:
- パンプス
- コンプレッサー
- Pneumatic systems
- 水処理施設
- 自動車産業
- Heavy industries
- HVAC (Heating, Ventilation, and Air Conditioning) systems
Figure 5: Typical applications for the MBS 3000.
10. 保証とサポート
For information regarding product warranty, technical support, or service, please contact your authorized Danfoss distributor or visit the official Danfoss website. Ensure you have your product model number (MBS 3000) and any relevant purchase details available when seeking support.