AEMC Model 3711 Clamp-Руководство пользователя тестера сопротивления заземления

Введение

The AEMC Model 3711 is a portable clamp-on ground resistance tester designed for measuring electrical ground rod and grid resistance in multi-grounded systems. This instrument offers a non-intrusive method for testing without the need for auxiliary rods or disconnecting the ground system. It also measures leakage, neutral, and phase currents, providing a comprehensive solution for electrical system analysis.

Информация по безопасности

ПРЕДУПРЕЖДЕНИЕ: Always read and understand all safety instructions before operating this instrument. Failure to do so may result in serious injury or death.

• This instrument is rated CAT III, indicating its suitability for measurements in building installations.
• Adhere to all local and national safety codes and regulations.
• Не используйте прибор, если он выглядит поврежденным или работает с перебоями.
• Перед использованием убедитесь, что батарейный отсек надежно закрыт.
• Avoid contact with live circuits during measurement.
• The instrument is double-insulated for enhanced safety.

Что в коробке?

При распаковке убедитесь в наличии всех предметов:

• AEMC Ground Resistance Tester Model 3711
• Calibration Check Loop, 25Ω
• Жесткий чехол
• Щелочная батарея 9 В
• Руководство пользователя (этот документ)

Продукт болееview

Image: The AEMC Model 3711 Clamp-On Ground Resistance Tester. This image displays the device with its red clamp jaws open, a black body, and a green digital display showing "9.8 Ω". Control buttons are visible below the display.

The AEMC Model 3711 features an ergonomic design for one-handed operation. Its robust polycarbonate construction ensures durability for outdoor use. Key components include:

• Clamp Челюсти: 1.25" opening to accommodate ground rods and cables up to 1000kcmil.
• ЖК-дисплей: Digital readout for resistance and current measurements.
• Кнопки управления: For power, data hold, and mode selection.
• Отсек для батареи: Located at the rear for a 9V battery.

Настройка и установка аккумулятора

1. Откройте крышку батарейного отсека на задней панели прибора.
2. Insert the supplied 9V Alkaline battery, observing correct polarity.
3. Плотно закройте крышку батарейного отсека.
4. Press the "ON" button to power on the device. The display should illuminate.

Инструкция по эксплуатации

Ground Resistance Measurement

1. Power on the AEMC 3711.
2. Откройте классamp jaws by pressing the release lever.
3. Поместите clamp around the ground conductor or rod to be tested, ensuring the jaws are fully closed.
4. The instrument will automatically measure and display the ground resistance in Ohms (Ω).
5. For stable readings, allow approximately one second for the measurement to settle.
6. To hold the current reading on the display, press the "HOLD" button. Press again to release.

Измерение тока

1. Power on the AEMC 3711.
2. Откройте классamp челюсти.
3. Поместите clamp around the conductor carrying the current to be measured (leakage, neutral, or phase current). Ensure the jaws are fully closed.
4. The instrument will automatically measure and display the current in Ampэр (A) или миллиAmpэр (мА).
5. The current measurement function provides direct readings for leakage current flowing to ground or circulating in ground loops (down to 1mA) and neutral/phase currents (up to 30A RMS).

Техническое обслуживание и калибровка

Уборка

Очищайте инструмент мягкой, damp Ткань. Не используйте абразивные чистящие средства или растворители.

Замена батареи

When the low battery indicator appears on the display, replace the 9V battery as described in the "Setup and Battery Installation" section.

Проверка калибровки

Use the supplied 25Ω calibration check loop to verify the instrument's accuracy periodically. Clamp the tester around the loop; the reading should be approximately 25Ω. If the reading deviates significantly, contact AEMC customer support for service.

Хранилище

Store the instrument in its hard carrying case in a dry, cool environment when not in use. Remove the battery if storing for extended periods.

Поиск неисправностей

• No Display/Instrument Not Powering On: Проверьте установку аккумулятора и убедитесь, что он достаточно заряжен. При необходимости замените.
• Нестабильные показания: Убедитесь, что clamp jaws are fully closed around the conductor. Verify there is no excessive electrical noise in the environment.
• «OL» или индикация перегрузки: The measured value exceeds the instrument's range. Ensure the correct measurement function is selected or the circuit parameters are within the device's limits.
• Неточные показания: Perform a calibration check using the 25Ω loop. If the issue persists, contact technical support.

Технические характеристики

Гарантия и поддержка

For warranty information, technical support, or service inquiries, please refer to the official AEMC Instruments webили обратитесь в службу поддержки клиентов. Сохраните чек о покупке для предъявления гарантийных претензий.