1. はじめに
This manual provides detailed instructions for the installation, operation, and maintenance of the QOLTEC 50900 Three Phase Electronic Energy Consumption Meter. This device is designed for measuring active energy consumption in three-phase, four-wire AC circuits. Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. 安全情報
警告： Installation and maintenance of this device must be performed by qualified personnel only. Failure to follow these instructions can result in electric shock, fire, or serious injury.
- メーターの設置やメンテナンスを行う前に必ず電源を切ってください。
- 配線図に従って、すべての配線接続が安全かつ正しいことを確認します。
- Do not operate the meter in environments exceeding its specified operating conditions.
- Do not open or modify the meter casing. 内部にはユーザーが修理できる部品はありません。
- Protect the meter from moisture, dust, and direct sunlight.
3.製品オーバーview
The QOLTEC 50900 is a compact, DIN rail mountable electronic energy meter designed for accurate measurement of three-phase energy consumption. It features an LCD display for clear readings and a pulse output for remote monitoring.
Figure 3.1: QOLTEC 50900 Energy Meter showing dimensions (75mm x 92mm x 76mm) and key features like Three Phase Type, 230V Rated Voltage, 1.0 Precision Class, and LCD Display.
主な特徴:
- Three-phase, four-wire measurement
- LCD digital display for energy consumption (kWh)
- DIN rail mounting (4P width)
- High accuracy (Class 1.0)
- Pulse output (400imp/kWh)
- 営業巻tage: 3x230/400V
4. 仕様
| パラメータ | 価値 |
|---|---|
| モデル | 50900 |
| 定格巻tage | 3x230/400V AC |
| 定格電流 | 3x10(100)A |
| 頻度 | 50Hz |
| 精度クラス | 1.0 |
| 画面 | 液晶 |
| パルス出力 | 400imp / kWh |
| インストール | DIN Rail (4P) |
| 寸法（幅×高さ×奥行き） | 75 x 92 x 76 ミリメートル |
| 重さ | 100グラム |
| 材料 | アクリル |
5. セットアップとインストール
The QOLTEC 50900 meter is designed for standard 35mm DIN rail mounting. Ensure the installation location is dry, well-ventilated, and free from excessive vibration or electromagnetic interference.
5.1 取り付け
- 電気パネル内で適切な 35mm DIN レールを見つけます。
- Align the meter's DIN rail clip with the rail.
- カチッと音がするまでメーターをレールにしっかりと押し付けます。
Figure 5.1: The QOLTEC 50900 meter securely mounted on a DIN rail, showing its compact form factor.
5.2配線接続
重要： All wiring must comply with local electrical codes and regulations. Ensure power is OFF before making any connections.
- Identify the input (IN) and output (OUT) terminals on the meter.
- Connect the incoming three-phase lines (L1, L2, L3) and Neutral (N) to the corresponding IN terminals (typically 5, 6, 7, 8).
- Connect the outgoing three-phase lines (L1, L2, L3) and Neutral (N) to the corresponding OUT terminals (typically 1, 2, 3, 4).
- 接触不良や過熱を防ぐために、すべての接続がしっかりと固定されていることを確認してください。
図5.2：側面 view of the meter showing the wiring diagram for input (IN) and output (OUT) connections for L1, L2, L3, and Neutral.
図5.3: 前面 view of the meter with its LCD display and a separate view of the terminal block for wiring connections.
6. 操作手順
Once properly installed and powered, the QOLTEC 50900 meter will automatically begin measuring energy consumption.
6.1 LCDディスプレイ
The LCD displays the total active energy consumption in kilowatt-hours (kWh). The display is continuous and does not require any button presses for basic reading.
図 6.1: 拡大図 view of the LCD display showing an example energy reading in kWh.
6.2 パルス出力
The meter features a pulse output (400imp/kWh) which can be used to connect to external monitoring systems for remote data collection. Refer to the external system's documentation for connection details.
7. メンテナンス
The QOLTEC 50900 energy meter is designed for maintenance-free operation under normal conditions.
- クリーニング： Use a soft, dry cloth to clean the meter's exterior. Do not use abrasive cleaners, solvents, or liquids that could enter the casing.
- 検査： Periodically inspect the wiring connections for any signs of loosening or damage. Ensure the meter is free from dust accumulation.
- 環境条件: メーターの寿命を延ばすには、動作環境が指定された温度と湿度の範囲内に保たれていることを確認してください。
8。 トラブルシューティング
If you encounter issues with your QOLTEC 50900 meter, refer to the following common problems and solutions:
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| ディスプレイが表示されない/メーターの電源が入らない | No power supply; Incorrect wiring; Blown fuse in circuit | Check power supply to the meter. Verify wiring connections. Check circuit breaker/fuse. |
| Incorrect energy reading | Incorrect wiring; Faulty meter | Verify wiring connections against the diagram. If wiring is correct, contact support. |
| Pulse output not working | Incorrect connection to external system; Faulty meter | Check pulse output wiring to the external system. Consult external system's manual. If issue persists, contact support. |
If the problem persists after attempting these solutions, please contact Qoltec customer support.
9. 保証とサポート
Qoltec products are manufactured to high-quality standards. For warranty information and technical support, please refer to the warranty card included with your product or visit the official Qoltec webサイトでご確認ください。購入証明として購入レシートを保管してください。