Jaycar QC1938

Uživatelská příručka k digitálnímu osciloskopu Jaycar Digitech QC1938 100MHz

1. Úvod

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. Bezpečnostní informace

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

  • Zdroj napájení: Connect the oscilloscope only to the power source specified in this manual.
  • Základy: Ensure the instrument is properly grounded to prevent electric shock.
  • Sondy: Use only probes supplied or recommended by the manufacturer. Ensure probes are rated for the voltage se měří.
  • Větrání: Neblokujte větrací otvory. Zajistěte dostatečné proudění vzduchu kolem přístroje.
  • Prostředí: Operate the oscilloscope in a dry environment. Avoid exposure to moisture, dust, or extreme temperatures.
  • Servis: Refer all servicing to qualified service personnel. Do not attempt to repair the instrument yourself.

3. Obsah balení

Ověřte, zda jsou v balení přítomny všechny níže uvedené položky:

  • Jaycar Digitech QC1938 Digital Oscilloscope
  • 10:1 Passive Probe with 1.5m lead
  • 2 x BNC to Clip Test Leads
  • USB kabel
  • Napájecí kabel
  • Uživatelská příručka (tento dokument)

4. Konec produktuview

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.

Přední view of the Digitech QC1938 Digital Oscilloscope displaying a sine wave on its screen.
Obrázek 4.1: Přední 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.
Úhlové view of the Digitech QC1938 Digital Oscilloscope, highlighting the side ventilation and handle.
Obrázek 4.2: Úhlové view of the Digitech QC1938 Digital Oscilloscope. This perspective emphasizes the robust build, integrated handle for portability, and side ventilation grilles.
Úhlové view of the Digitech QC1938 Digital Oscilloscope displaying a complex waveform.
Obrázek 4.3: Další úhlový view of the Digitech QC1938 Digital Oscilloscope. The screen displays a different waveform, demonstrating the device's capability to visualize various signal types.

Klíčové vlastnosti:

  • 7-inch TFT color LCD screen with 800 x 480 pixel resolution
  • Two independent input channels
  • 100MHz bandwidth and 1GSa/s sampsazba lingu
  • 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. Nastavení

5.1 Připojení napájení

  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 Připojení sondy

  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. Návod k obsluze

6.1 Základní obsluha

  • 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.
  • Úroveň spouštění: Adjust the 'TRIGGER LEVEL' knob to set the voltage level at which the oscilloscope captures a waveform.

6.2 Pokročilé funkce

  • Generátor průběhu: 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.
  • Režimy spouštění: 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.
  • Rozměry: The device offers 32 types of automatic measurements with real-time statistics (maximum, minimum, standard deviation, etc.). Access these via the 'MEASURE' menu.
  • USB připojení: 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. Údržba

7.1 Čištění

K čištění nástroje použijte měkký hadřík dampened with a mild detergent solution. Do not use abrasive cleaners or solvents that could damage the casing nebo obrazovku. Před čištěním se ujistěte, že je zařízení vypnuté a odpojené od sítě.

7.2 Skladování

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. Řešení problémů

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

ProblémMožná příčinaŘešení
Žádná sílaPower cable not connected; Power outlet faulty; Power button not pressedCheck power cable connection; Test power outlet; Press power button firmly
Nezobrazuje se žádný průběhProbe 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'
Nestabilní průběhIncorrect trigger settings; No stable trigger sourceAdjust trigger level; Select appropriate trigger mode; Ensure a stable signal source
USB disk nebyl rozpoznánUSB drive formatted incorrectly; Drive not fully insertedEnsure USB drive is FAT32 formatted; Re-insert USB drive firmly

Pokud problém přetrvává i po vyzkoušení těchto řešení, kontaktujte zákaznickou podporu.

9. Specifikace

ParametrSpecifikace
Zobrazit7palcový TFT barevný LCD
Rezoluce800 x 480 pixelů
Typ zobrazeníPoint, Vector
Kanály2
Šířka pásma100 MHz
Sampsazba lingAž 1 GSA/s
Hloubka paměti8M (single channel)
Vertikální rozsah2mV / dílek ~ 10V / dílek
Vertikální rozlišení8 bit
Generátor křivekSinus, čtverec, Ramp, Exponential, Noise, DC
RozhraníUSB Host, USB Device
Hmotnost1.9 kg
Rozměry (D x V x Š)318 mm x 150 mm x 110 mm

10. Záruka a podpora

Informace o záruce a technickou podporu naleznete v dokumentaci dodané při nákupu nebo se obraťte na svého prodejce. Uschovejte si doklad o koupi pro případné reklamace.