Jaycar QC1938

Manual Pengguna Osiloskop Digital Jaycar Digitech QC1938 100MHz

1. Pengenalan

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. Maklumat Keselamatan

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

  • Sumber Kuasa: Connect the oscilloscope only to the power source specified in this manual.
  • Pembumian: Pastikan instrumen dibumikan dengan betul untuk mengelakkan kejutan elektrik.
  • Probe: Use only probes supplied or recommended by the manufacturer. Ensure probes are rated for the voltage sedang diukur.
  • Pengudaraan: Do not block ventilation openings. Ensure adequate airflow around the instrument.
  • Persekitaran: 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. Kandungan Pakej

Sahkan bahawa semua item yang disenaraikan di bawah terdapat dalam pakej anda:

  • Jaycar Digitech QC1938 Digital Oscilloscope
  • 10:1 Passive Probe with 1.5m lead
  • 2 x BNC to Clip Test Leads
  • Kabel USB
  • Kekuatan plumbum
  • Manual Pengguna (dokumen ini)

4. Produk Lebihview

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.

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

Ciri-ciri Utama:

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

5.1 Sambungan Kuasa

  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. Tekan butang kuasa pada panel hadapan untuk menghidupkan osiloskop.

5.2 Sambungan Probe

  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. Sambungkan hujung prob ke titik ujian dalam litar anda.
  4. Ensure the probe's attenuation setting (e.g., 1X or 10X) matches the setting on the oscilloscope for accurate readings.

6. Arahan Operasi

6.1 Operasi Asas

  • 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.
  • Kawalan Menegak (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.
  • Kawalan Mendatar (SEC/DIV, POSITION): Use the SEC/DIV knob to adjust the horizontal scale (time per division). The horizontal POSITION knob shifts the waveform horizontally.
  • Tahap Pencetus: Adjust the 'TRIGGER LEVEL' knob to set the voltage level at which the oscilloscope captures a waveform.

6.2 Fungsi Lanjutan

  • Penjana Gelombang: 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.
  • Mod Pencetus: 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.
  • Pengukuran: The device offers 32 types of automatic measurements with real-time statistics (maximum, minimum, standard deviation, etc.). Access these via the 'MEASURE' menu.
  • Kesambungan USB: 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. Penyelenggaraan

7.1 Pembersihan

To clean the instrument, use a soft cloth dampened with a mild detergent solution. Do not use abrasive cleaners or solvents that could damage the casing atau skrin. Pastikan peranti dimatikan dan dicabut daripadanya sebelum membersihkan.

7.2 Penyimpanan

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. Penyelesaian masalah

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

MasalahKemungkinan PuncaPenyelesaian
Tiada kuasaPower cable not connected; Power outlet faulty; Power button not pressedCheck power cable connection; Test power outlet; Press power button firmly
Tiada bentuk gelombang dipaparkanProbe 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'
Bentuk gelombang yang tidak stabilIncorrect trigger settings; No stable trigger sourceAdjust trigger level; Select appropriate trigger mode; Ensure a stable signal source
Pemacu USB tidak dikenaliUSB drive formatted incorrectly; Drive not fully insertedEnsure USB drive is FAT32 formatted; Re-insert USB drive firmly

Jika masalah berterusan selepas mencuba penyelesaian ini, sila hubungi sokongan pelanggan.

9. Spesifikasi

ParameterSpesifikasi
PaparanLCD Warna TFT 7 inci
Resolusi800 x 480 piksel
Jenis PaparanPoint, Vector
Saluran2
Lebar jalur100 MHz
SampKadar lingUp to 1 GSa/s
Kedalaman Memori8M (single channel)
Julat Menegak2mV / div ~ 10V / div
Resolusi menegak8 bit
Penjana Bentuk GelombangSinus, Dataran, Ramp, Exponential, Noise, DC
Antara mukaUSB Host, USB Device
Berat badan1.9 kg
Dimensi (L x H x W)318mm x 150mm x 110mm

10. Waranti dan Sokongan

Untuk maklumat jaminan dan sokongan teknikal, sila rujuk dokumentasi yang disediakan semasa pembelian atau hubungi peruncit anda. Simpan bukti pembelian anda untuk tuntutan jaminan.

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