1. Введение
This manual provides detailed instructions for the installation, operation, and maintenance of the Avoltik Huawei Smart Power Sensor DTSU666-H. This high-quality, three-phase current sensor is designed for use in photovoltaic (PV) systems, offering precise energy measurement and reliable communication capabilities.
Перед установкой и эксплуатацией устройства внимательно ознакомьтесь с данным руководством, чтобы обеспечить его безопасное и эффективное использование.
2. Особенности продукта
- Three-Phase Current Sensor: Specifically designed for solar power systems.
- Широкий объемtage Диапазон: Operates efficiently within a voltagДиапазон напряжения от 176 до 288 Вольт.
- Низкий уровень самопотребления: Features very low power consumption, less than one Watt.
- Простая установка: Designed for straightforward and effortless setup.
- Встроенный ЖК-экран: Displays performance data and allows for easy operation directly on the device.
- RS485 Связь: Supports data communication via RS485, enabling remote data reading.
- Modbus-RTU Protocol: Utilizes the Modbus-RTU communication protocol for seamless integration.

Image: The Smart Power Sensor DTSU666-H with visual callouts for its main features, including its three-phase capability, easy installation, LCD screen, RS485 communication, and low power consumption.
3. Технические характеристики
| Категория | Спецификация |
|---|---|
| Модель | DTSU666-H 250/50 mA |
| Размеры (В x Ш x Г) | 100 х 65.5 х 72 мм |
| Weight (incl. cable) | 1.5 кг |
| Тип крепления | DIN35 Рейка |
| Текущий тип | 3P4W (3-Phase) |
| Vol входtage | 176-288 VAC (Phase/N) |
| Потребляемая мощность | ≤ 1 Вт |
| Интерфейс связи | RS485 |
| Скорость передачи данных | 9,600 бит/с |
| Протокол связи | Modbus-RTU |
| Точность измерения (объем)tage) | ±0.5 % |
| Measurement Accuracy (Current/Power/Energy) | ±1 % |
| Measurement Accuracy (Frequency) | ±0.01 Гц |
| Measurement Range (Phase-Phase Voltage) | 304–499 В переменного тока |
| Measurement Range (Phase Voltage) | 176–288 В переменного тока |
| Measurement Range (Current) | 0 - 250 А |
| Диапазон рабочих температур | -25°С до +60°С |
| Диапазон температур хранения | -40°С до +70°С |
| Относительная влажность | 5 % RH - 95 % RH |

Image: A detailed table outlining the technical specifications of the DTSU666-H Smart Power Sensor, including dimensions, weight, electrical parameters, and environmental conditions.
4. Содержимое упаковки
При открытии упаковки убедитесь, что все компоненты присутствуют и не повреждены:
- 1x DTSU666-H Smart Power Sensor
- Current Transformers (250A/50mA)
- Необходимые соединительные кабели

Image: The complete package contents, showing the DTSU666-H Smart Power Sensor alongside its current transformers and connection cables.
5. Настройка и установка
The DTSU666-H Smart Power Sensor is designed for easy installation, typically on a DIN35 rail. Ensure all safety precautions are followed during installation, especially when dealing with electrical systems.
5.1 Инструкции по технике безопасности
- Установка должна выполняться только квалифицированным персоналом.
- Disconnect all power sources before beginning installation.
- Используйте соответствующие средства индивидуальной защиты (СИЗ).
- Обеспечьте надлежащее заземление.
5.2 Монтаж устройства
- Locate a suitable DIN35 rail within your electrical panel or enclosure.
- Snap the DTSU666-H sensor onto the DIN rail until it clicks securely into place.
5.3 Электрические соединения
Connect the sensor according to the wiring diagram provided with your PV system documentation. Key connections include:
- Томtage Входы: Connect the three-phase voltage lines (L1, L2, L3) and neutral (N) to the corresponding terminals on the sensor.
- Current Transformer (CT) Connections: Connect the supplied current transformers to the main current lines of your PV system. Ensure correct polarity and connect the CT secondary wires to the sensor's current input terminals.
- RS485 Связь: Connect the RS485 A and B terminals to your communication network (e.g., inverter, data logger) for Modbus-RTU communication.

Image: The DTSU666-H Smart Power Sensor shown in an installed context, emphasizing its role in a solar power system.
6. Операция
Once installed and powered on, the DTSU666-H will begin measuring electrical parameters. The integrated LCD screen allows for direct monitoring and basic configuration.
6.1 ЖК-дисплей и навигация
The LCD screen displays various real-time data such as voltage, current, power, and energy consumption. Use the buttons below the screen to navigate through the display menus:
- Кнопка SET: Enters configuration mode or confirms a selection.
- Кнопка ESC: Выход из меню или отмена операции.
- Кнопки со стрелками (влево/вправо): Navigates between different display screens or adjusts values in configuration mode.
6.2 Мониторинг данных
Regularly check the LCD display for key operational data. For detailed analysis and historical data, connect the sensor to a compatible monitoring system via the RS485 interface and Modbus-RTU protocol.
7. Техническое обслуживание
The Avoltik Huawei Smart Power Sensor DTSU666-H requires minimal maintenance. Regular checks can help ensure its longevity and accurate performance.
- Уборка: Держите устройство в чистоте и не допускайте попадания пыли. Для чистки используйте мягкую сухую ткань. Не используйте абразивные чистящие средства или растворители.
- Проверка подключения: Периодически проверяйте все электрические соединения, чтобы убедиться в их надежности и отсутствии коррозии.
- Условия окружающей среды: Во избежание повреждений следите за тем, чтобы температура и влажность рабочей среды оставались в пределах указанных диапазонов.
No user-serviceable parts are inside the device. Do not attempt to open or repair the sensor yourself.
8. Поиск Неисправностей
This section provides solutions to common issues you might encounter with your DTSU666-H Smart Power Sensor.
| Проблема | Возможная причина | Решение |
|---|---|---|
| Устройство не включается / ЖК-экран не работает | No power supply; Loose connections; Faulty device. | Check power input connections. Ensure circuit breaker is on. Verify voltage supply. If problem persists, contact support. |
| Incorrect readings on LCD | Incorrect CT wiring; Incorrect CT polarity; Sensor not calibrated. | Verify CT connections and polarity according to the wiring diagram. Ensure CTs are correctly sized for the application. |
| No communication via RS485 | Incorrect wiring (A/B reversed); Incorrect baud rate; Termination resistor missing/incorrect; Software configuration issue. | Check RS485 wiring (A to A, B to B). Verify baud rate and protocol (Modbus-RTU) settings on both sensor and master device. Ensure proper termination. |
| Перегрев устройства | Poor ventilation; Overload; High ambient temperature. | Ensure adequate ventilation around the device. Check if the current load exceeds the sensor's rating. Relocate to a cooler environment if necessary. |
If you encounter issues not listed here or if the suggested solutions do not resolve the problem, please contact Avoltik customer support.
9. Гарантия и поддержка
Avoltik products are manufactured to the highest quality standards. For warranty information, please refer to the warranty card included with your product or visit the official Avoltik webсайт.
For technical support, troubleshooting assistance, or spare parts, please contact Avoltik customer service:
- Webсайт: Avoltik Official Store
- Электронная почта: [Refer to product packaging or website for specific email]
- Телефон: [Refer to product packaging or website for specific phone number]
Please have your product model (DTSU666-H) and purchase date ready when contacting support.
10. Универсальное применение
The Avoltik Huawei Smart Power Sensor DTSU666-H is a versatile and reliable solution suitable for various solar energy applications, ensuring optimal performance and monitoring.

Image: An illustration showing the versatility of solar power systems, indicating their applicability for roofs, open fields, boats, and balconies, all of which can benefit from the DTSU666-H sensor.





