Jaycar QC1938

Ръководство за потребителя на цифров осцилоскоп Jaycar Digitech QC1938 100MHz

1. Въведение

This manual provides detailed instructions for the safe and effective operation of your Jaycar Digitech QC1938 100MHz Digital Oscilloscope. Please read this manual thoroughly before using the device to ensure proper setup, operation, and maintenance. Retain this manual for future reference.

2. Информация за безопасност

Observe the following safety precautions to prevent injury and avoid damage to the instrument or any products connected to it.

  • Източник на захранване: Connect the oscilloscope only to the power source specified in this manual.
  • Заземяване: Уверете се, че инструментът е правилно заземен, за да предотвратите токов удар.
  • сонди: Use only probes supplied or recommended by the manufacturer. Ensure probes are rated for the voltage се измерва.
  • Вентилация: Не блокирайте вентилационните отвори. Осигурете адекватен въздушен поток около инструмента.
  • Околна среда: Operate the oscilloscope in a dry environment. Avoid exposure to moisture, dust, or extreme temperatures.
  • Обслужване: За всички видове сервизно обслужване се обръщайте към квалифициран сервизен персонал. Не се опитвайте да ремонтирате инструмента сами.

3. Съдържание на пакета

Проверете дали всички изброени по-долу елементи са налични във вашия пакет:

  • Jaycar Digitech QC1938 Digital Oscilloscope
  • 10:1 Passive Probe with 1.5m lead
  • 2 x BNC to Clip Test Leads
  • USB кабел
  • Захранващ кабел
  • Ръководство на потребителя (този документ)

4. Продуктът свършиview

The Jaycar Digitech QC1938 is a 100MHz Digital Oscilloscope designed for precise electronic measurements. It features a 7-inch color LCD screen, two independent channels, and a built-in waveform generator.

Отпред view of the Digitech QC1938 Digital Oscilloscope displaying a sine wave on its screen.
Фигура 4.1: Отпред view of the Digitech QC1938 Digital Oscilloscope. This image shows the main display, control knobs, function buttons, and input connectors for channels 1 and 2, along with the USB port.
Под ъгъл view of the Digitech QC1938 Digital Oscilloscope, highlighting the side ventilation and handle.
Фигура 4.2: Под ъгъл view of the Digitech QC1938 Digital Oscilloscope. This perspective emphasizes the robust build, integrated handle for portability, and side ventilation grilles.
Под ъгъл view of the Digitech QC1938 Digital Oscilloscope displaying a complex waveform.
Фигура 4.3: Друг ъглов view of the Digitech QC1938 Digital Oscilloscope. The screen displays a different waveform, demonstrating the device's capability to visualize various signal types.

Ключови характеристики:

  • 7-inch TFT color LCD screen with 800 x 480 pixel resolution
  • Two independent input channels
  • 100MHz bandwidth and 1GSa/s sampлинг процент
  • 8M memory depth (single channel)
  • Integrated 25MHz waveform generator (Sine, Square, Ramp, Exponential, Noise, DC)
  • Auto scale function for automatic sine and square wave detection
  • 14 trigger modes including Edge, Pulse, Video, Slope, Overtime, Window, Pattern, Interval, Under Amp, UART, LIN, CAN, SPI, and IIC
  • 5 serial protocol triggers and decodes: RS232/UART, I2C, SPI, CAN, and LIN
  • Two 3-digit digital voltmeters and a 6-digit hardware frequency indicator
  • 32 types of auto measurements with real-time statistics
  • USB Host/Device interface for computer control and data storage

5. Настройка

5.1 Захранване

  1. Connect the supplied power lead to the power input on the rear panel of the oscilloscope.
  2. Plug the other end of the power lead into a grounded AC power outlet.
  3. Press the power button on the front panel to turn on the oscilloscope.

5.2 Свързване на сондата

  1. Connect the BNC connector of the passive probe to either Channel 1 (CH1) or Channel 2 (CH2) input on the front panel.
  2. Attach the ground clip of the probe to the circuit's ground point.
  3. Connect the probe tip to the test point in your circuit.
  4. Ensure the probe's attenuation setting (e.g., 1X or 10X) matches the setting on the oscilloscope for accurate readings.

6. Инструкции за работа

6.1 Основна операция

  • Auto Scale: Press the 'AUTO SET' button to automatically adjust vertical, horizontal, and trigger settings for a stable waveform display. This function detects sine and square waves automatically.
  • Vertical Controls (VOLTS/DIV, POSITION): Use the VOLTS/DIV knobs to adjust the vertical scale (voltage per division) for each channel. The POSITION knobs shift the waveform vertically.
  • Horizontal Controls (SEC/DIV, POSITION): Use the SEC/DIV knob to adjust the horizontal scale (time per division). The horizontal POSITION knob shifts the waveform horizontally.
  • Ниво на задействане: Adjust the 'TRIGGER LEVEL' knob to set the voltage level at which the oscilloscope captures a waveform.

6.2 Разширени функции

  • Генератор на вълнова форма: Access the waveform generator menu to select and configure output waveforms such as Sine, Square, Ramp, Exponential, Noise, and DC. Connect the 'WAVE GEN' output to your circuit.
  • Режими на задействане: Utilize the 14 available trigger modes (Edge, Pulse, Video, Slope, Overtime, Window, Pattern, Interval, Under Amp, UART, LIN, CAN, SPI, IIC) to capture specific events. Select modes via the 'TRIGGER' menu.
  • Serial Protocol Decoding: The oscilloscope supports decoding for RS232/UART, I2C, SPI, CAN, and LIN protocols. Configure these settings in the 'DECODE' menu to view decoded data.
  • Измервания: The device offers 32 types of automatic measurements with real-time statistics (maximum, minimum, standard deviation, etc.). Access these via the 'MEASURE' menu.
  • USB връзка: Connect a USB thumb drive to the USB Host port to save oscilloscope setups, waveforms, reference waveforms, CSV files, and images. The USB Device port allows for remote control from a computer using SCPI commands.

7. Поддръжка

7.1 Почистване

За почистване на инструмента използвайте мека кърпа dampс мек разтвор на почистващ препарат. Не използвайте абразивни почистващи препарати или разтворители, които биха могли да повредят casing or screen. Ensure the device is powered off and unplugged before cleaning.

7.2 Съхранение

When not in use, store the oscilloscope in a dry, dust-free environment away from direct sunlight and extreme temperatures. Use the original packaging or a suitable case for protection during transport.

8. Отстраняване на проблеми

If you encounter issues with your oscilloscope, refer to the following common problems and solutions:

проблемВъзможна причинаРешение
Без захранванеPower cable not connected; Power outlet faulty; Power button not pressedCheck power cable connection; Test power outlet; Press power button firmly
Не се показва вълнова формаProbe not connected; Incorrect input channel selected; Vertical/Horizontal scale incorrect; Trigger level too high/lowConnect probe to CH1/CH2; Select correct channel; Adjust VOLTS/DIV and SEC/DIV; Adjust TRIGGER LEVEL or use 'AUTO SET'
Нестабилна форма на вълнатаIncorrect trigger settings; No stable trigger sourceAdjust trigger level; Select appropriate trigger mode; Ensure a stable signal source
USB устройството не е разпознатоUSB drive formatted incorrectly; Drive not fully insertedEnsure USB drive is FAT32 formatted; Re-insert USB drive firmly

Ако проблемът продължава след като сте опитали тези решения, моля, свържете се с отдела за обслужване на клиенти.

9. Спецификации

ПараметърСпецификация
Дисплей7-инчов TFT цветен LCD
Резолюция800 x 480 пиксела
Тип дисплейPoint, Vector
Канали2
Честотна лента100 MHz
Sampлинг процентДо 1 GSA/s
Дълбочина на паметта8M (single channel)
Вертикален диапазон2mV / div ~ 10V / div
Вертикална резолюция8 бита
Генератор на вълнаСинус, квадрат, Ramp, Exponential, Noise, DC
ИнтерфейсUSB Host, USB Device
Тегло1.9 кг
Размери (Д x В x Ш)318 мм x 150 мм x 110 мм

10. Гаранция и поддръжка

За информация относно гаранцията и техническа поддръжка, моля, вижте документацията, предоставена при покупката, или се свържете с вашия търговец на дребно. Запазете касовата си бележка за покупка за гаранционни рекламации.