1. Введение
The AUTOOL DM303 is a versatile hand-held automotive diagnostic multimeter that integrates the functions of a digital oscilloscope and a digital multimeter. Designed with embedded digital control technology, it provides comprehensive diagnostic capabilities for various automotive electrical systems. This device is ideal for professional technicians and automotive enthusiasts for accurate and efficient vehicle maintenance and troubleshooting.
2.Основные характеристики
The AUTOOL DM303 offers a wide range of diagnostic functions:
- DC / AC VoltagИзмерение е
- Измерение постоянного/переменного тока
- Тест на сопротивление
- Измерение частоты
- Тест осциллографа
- Automotive Circuit Test
- Car Start-up Test
- Проверка форсунки
- Automobile Relay Test
- Analog Signal Test
- Ignition Pulse Signal Test
- K/CAN Line Data Analysis
The device features a 2.8-inch color LCD screen with a resolution of 320*240, offering adjustable brightness for clear and intuitive data display in various working environments.
It supports 13 languages: Deutsch, Spanish, French, Italian, English, Japanese, Portuguese, Dutch, Polish, Russian, Korean, Chinese, and Traditional Chinese.
3. Содержимое упаковки
The AUTOOL DM303 comes with the following items, neatly stored in a portable toolbox:
- Основной блок AUTOOL DM303
- Multi-functional Detection Line (C01-1 to C01-SIN, C01-S1, C01-S2)
- Battery Clip Line (C02)
- Ignition Pulse Signal Detection Line (C03)
- Probe Terminal (C04-2)
- Jumper (Black) (C05)
- Jumper (Green) (C06)
- Jumper (Yellow) (C07)
- Руководство пользователя
- Портативный набор инструментов
4. Продукт закончилсяview
The DM303 is designed for ease of use and durability. Below is an overview его основных компонентов:
- Экран дисплея: 2.8-inch color LCD.
- Индикатор питания: Указывает состояние питания устройства.
- Кнопка питания: Включает/выключает устройство.
- Hold key: Freezes the current reading on the screen.
- Клавиша направления: Используется для навигации в меню.
- Возврат ключа: Возвращает к предыдущему меню или экрану.
- Клавиша ввода: Подтверждает выбор или входит в меню.
- 10A current input: Input jack for high current measurements.
- mA/uA measurement input: Input jack for low current measurements.
- Ключ освещения: Activates the device's built-in light.
- ZERO / F1 Function key: Zeroes readings or acts as Function 1.
- F2 Function key: Acts as Function 2.
- Measurement mode switching: Кнопка для переключения между различными режимами измерения.
- Диод, об.tage, resistance, frequency measurement input: Common input jack for these functions.
- COM measurement input: Входной разъем с общим заземлением.
- Интерфейс DB15: Connector for specialized diagnostic cables.
- SD card slot / data interface: For software updates and data storage.
- Свет: Встроенная подсветка для освещения рабочих зон.
- Задний кронштейн: Allows the device to stand upright for hands-free operation.
5. Технические характеристики
| Атрибут | Ценить |
|---|---|
| Название модели | DM303 |
| Название бренда | Autory |
| Источник | Материковый Китай |
| Сертификация | CE |
| Сертификация внешнего тестирования | ce |
| Цветной экран | 2.8-дюймовый ЖК-дисплей |
| Разрешение | 320*240 |
| Томtage Диапазон измерения | 0–1000 В постоянного тока, 0–700 В переменного тока |
| Диапазон измерения тока | 0-20А, 0-200мА |
| Диапазон измерения сопротивления | 0-1 МОм |
| Диапазон измерения частоты | 1Гц-1МГц |
| Ток привода автомобильной цепи | 0-5А |
| Выходной сигнал управления форсункой | 500-6000 об/мин |
| Рабочая температура | 0~40°C (32~104°F) Humidity: ≤75% |
| Температура хранения | 10~50°C (14~122°F) Humidity: ≤70% |
| Высота | 2000м |
| Длина элемента | 26см |
| Ширина элемента | 20см |
| Высота элемента | 11см |
| Вес товара | 1.7кг |
| Входное сопротивление (громкость)tage) | 2~3MΩ (<160V); 10MΩ (>160V) |
| Максимальный входной объемtage | 1000Vpp |
| Аналоговая полоса пропускания | 500КГц |
| Клеммный предохранитель на 10 А | 15A self-recovery fuse (Max 20A) |
| Предохранитель клеммы мА/мкА | 0.5A self-recovery fuse (Max 200mA) |
6. Руководство по установке
6.1 Установка аккумулятора
The AUTOOL DM303 is not equipped with batteries for logistics and transportation reasons. You will need to purchase 4pcs 1.5A batteries (AA size) or a 3.7V, 1200 mAh lithium battery separately.
- Найдите батарейный отсек на задней панели устройства.
- Откройте крышку батарейного отсека.
- Insert 4pcs 1.5A batteries, ensuring correct polarity (+/-).
- Плотно закройте крышку батарейного отсека.
Примечание: Without batteries, the device will turn off automatically when disconnected from the charging cable.
6.2 Включение/выключение питания
Нажмите и удерживайте Кнопка питания (labeled '3' in the Product Overview diagram) to turn the device ON or OFF.
7. Инструкция по эксплуатации
The AUTOOL DM303 features an intuitive interface for selecting and performing various tests. Use the Клавиши направления (5) to navigate through menus and the Введите ключ (7) to confirm selections.
7.1 Общая навигация
- Используйте Клавиши направления (Up, Down, Left, Right) to move the cursor or change values.
- Нажимать OK (Enter key) to select an option or confirm an action.
- Нажимать ЕСК (Return key) to go back to the previous screen or cancel an operation.
- Использовать F1 (НОЛЬ) и F2 for specific function adjustments as indicated on the screen.
- The ДЕРЖАТЬ key (4) can be used to freeze the current measurement on the display.
7.2 Режим мультиметра
Select 'Multimeter' from the main menu. This mode allows you to measure AC/DC voltage, current, resistance, diode forward voltage drop, on-off continuity, and frequency. Connect the appropriate probes to the device's input jacks (8, 9, 14, 15) and to the circuit under test.
7.3 Режим осциллографа
Select 'Oscilloscope' from the main menu. This mode provides a complete intelligent measurement system for signal input, data sampling, processing, and automatic search. It has a waveform test bandwidth of 500KHz and a variable sampling frequency for measuring slowly varying signals. It is suitable for observing various automotive signals such as engine ignition pulse, camshaft, crankshaft, wheel speed sensor, and oxygen sensor signals.
7.4 Тест автомобильной цепи
This function allows online testing of low voltage circuits, detection of high voltage or line leakage, and output of power supply voltage. It can also output power voltage to test car components or lower voltage to drive components like lights. It can test battery voltage during vehicle startup to assess the starting system and battery condition.
7.5 Car Start-up Test (Cranking Test)
Connect the device to the vehicle's battery using the appropriate cables. Select 'Cranking Test' from the menu. The device will monitor current and minimum voltage during engine cranking to evaluate the battery and starter motor performance.
7.6 Тест форсунки
Connect the injector to the device using the specialized terminals (C01-2). Select 'Injector Test' to simulate engine speed and drive the fuel injection nozzle, allowing for functional testing of the injector.
7.7 Automobile Relay Test
Connect the relay to the device using the specialized terminals (C01-2). Select 'Relay Test' to check the output status and contact resistance of the relay.
7.8 Тест аналогового сигнала
This function is used for car ECU detection. It can simulate square wave and sine wave outputs, which can be used to test ECU inputs or drive certain components.
7.9 Ignition Pulse Signal Test
Use the Ignition Pulse Signal Detection Line (C03) to connect to the ignition system. Select 'Ignition Pulse Signal Test' to analyze the ignition pulse waveform and characteristics.
7.10 K/CAN Line Data Analysis
Connect the device to the vehicle's K-line or CAN bus using the appropriate cables (C01-K, C01-CAN+, C01-CAN-). Select 'K/CAN Line Data' to monitor and analyze data signals on these communication lines.
7.11 Измерение частоты
Select 'Frequency Measurement' from the multimeter mode or a dedicated frequency function. Connect the probes to the signal source to measure its frequency.
8. Техническое обслуживание
8.1 Обновление программного обеспечения
The instrument supports software updates via an SD card. To update the software:
- Download the latest application software file from the official AUTOOL webсайт.
- Скопируйте загруженный файл file на SD-карту.
- Insert the SD card into the device's SD card slot (17).
- Следуйте инструкциям на экране, чтобы завершить обновление программного обеспечения.
8.2 Чистка и хранение
- Содержите устройство в чистоте и сухости. Используйте мягкую, damp Для протирки внешней поверхности используйте ткань. Не используйте абразивные чистящие средства или растворители.
- Ensure all ports and connectors are free from dust and debris.
- When not in use, store the main unit and all accessories in the provided portable toolbox. The toolbox is designed to protect the instrument from falls and impacts.
9. Поиск Неисправностей
- Устройство не включается: Check if batteries are correctly installed and charged. Ensure the power key is pressed and held sufficiently.
- Неточные показания: Verify that all connections are secure and probes are properly attached to the circuit. Ensure the correct measurement mode is selected.
- Экран тусклый или нечитаемый: Adjust the screen brightness through the device settings.
- Устройство зависает или перестает отвечать: Try restarting the device by holding the power key. If the issue persists, ensure the software is up to date.
10. Советы пользователю
- Always ensure the device is powered off before connecting or disconnecting probes to prevent accidental short circuits or damage.
- For precise current measurements, especially low currents, ensure the circuit is properly isolated and the correct input jack (10A or mA/uA) is used.
- When using the oscilloscope function, familiarize yourself with typical waveforms for the components you are testing to quickly identify anomalies.
- Utilize the back bracket (19) for hands-free operation, especially when working in tight engine compartments.
11. Гарантия и поддержка
The AUTOOL DM303 comes with a 3-year warranty, ensuring quality assurance. For technical support, service, or warranty claims, please contact your authorized AUTOOL dealer or visit the official AUTOOL webсайт для контактной информации.
