1. Sissejuhatus
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. Ohutusalane teave
Observe the following safety precautions to prevent injury and avoid damage to the instrument or any products connected to it.
- Toiteallikas: Connect the oscilloscope only to the power source specified in this manual.
- Maandus: Ensure the instrument is properly grounded to prevent electric shock.
- Sondid: Use only probes supplied or recommended by the manufacturer. Ensure probes are rated for the voltage mõõdetakse.
- Ventilatsioon: Ärge blokeerige ventilatsiooniavasid. Tagage seadme ümber piisav õhuvool.
- Keskkond: Operate the oscilloscope in a dry environment. Avoid exposure to moisture, dust, or extreme temperatures.
- Teenindus: Refer all servicing to qualified service personnel. Do not attempt to repair the instrument yourself.
3. Pakendi sisu
Veenduge, et kõik allpool loetletud esemed on teie pakendis olemas:
- Jaycar Digitech QC1938 Digital Oscilloscope
- 10:1 Passive Probe with 1.5m lead
- 2 x BNC to Clip Test Leads
- USB kaabel
- Toitejuhe
- Kasutusjuhend (see dokument)
4. Toote lõppview
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.



Peamised omadused:
- 7-inch TFT color LCD screen with 800 x 480 pixel resolution
- Two independent input channels
- 100MHz bandwidth and 1GSa/s samplingi määr
- 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. Seadistamine
5.1 Toiteühendus
- Connect the supplied power lead to the power input on the rear panel of the oscilloscope.
- Plug the other end of the power lead into a grounded AC power outlet.
- Ostsilloskoobi sisselülitamiseks vajutage esipaneelil olevat toitenuppu.
5.2 Sondi ühendus
- Connect the BNC connector of the passive probe to either Channel 1 (CH1) or Channel 2 (CH2) input on the front panel.
- Attach the ground clip of the probe to the circuit's ground point.
- Connect the probe tip to the test point in your circuit.
- Ensure the probe's attenuation setting (e.g., 1X or 10X) matches the setting on the oscilloscope for accurate readings.
6. Kasutusjuhised
6.1 Põhitoimingud
- 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.
- Käivitustase: Adjust the 'TRIGGER LEVEL' knob to set the voltage level at which the oscilloscope captures a waveform.
6.2 Täpsemad funktsioonid
- Lainekuju generaator: 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.
- Käivitusrežiimid: 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.
- Jadaprotokolli dekodeerimine: The oscilloscope supports decoding for RS232/UART, I2C, SPI, CAN, and LIN protocols. Configure these settings in the 'DECODE' menu to view decoded data.
- Mõõdud: The device offers 32 types of automatic measurements with real-time statistics (maximum, minimum, standard deviation, etc.). Access these via the 'MEASURE' menu.
- USB-ühenduvus: 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. Hooldus
7.1 Puhastamine
Instrumendi puhastamiseks kasutage pehmet lappi dampened with a mild detergent solution. Do not use abrasive cleaners or solvents that could damage the casing või ekraanil. Enne puhastamist veenduge, et seade on välja lülitatud ja vooluvõrgust lahti ühendatud.
7.2 Säilitamine
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. Veaotsing
If you encounter issues with your oscilloscope, refer to the following common problems and solutions:
| Probleem | Võimalik põhjus | Lahendus |
|---|---|---|
| Pole jõudu | Power cable not connected; Power outlet faulty; Power button not pressed | Check power cable connection; Test power outlet; Press power button firmly |
| Lainekuju ei kuvata | Probe not connected; Incorrect input channel selected; Vertical/Horizontal scale incorrect; Trigger level too high/low | Connect probe to CH1/CH2; Select correct channel; Adjust VOLTS/DIV and SEC/DIV; Adjust TRIGGER LEVEL or use 'AUTO SET' |
| Ebastabiilne lainekuju | Incorrect trigger settings; No stable trigger source | Adjust trigger level; Select appropriate trigger mode; Ensure a stable signal source |
| USB-draivi ei tuvastatud | USB drive formatted incorrectly; Drive not fully inserted | Ensure USB drive is FAT32 formatted; Re-insert USB drive firmly |
Kui probleem pärast nende lahenduste proovimist püsib, võtke ühendust klienditoega.
9. Tehnilised andmed
| Parameeter | Spetsifikatsioon |
|---|---|
| Ekraan | 7-tolline TFT värviline LCD |
| Resolutsioon | 800 x 480 pikslit |
| Kuva tüüp | Point, Vector |
| Kanalid | 2 |
| Ribalaius | 100 MHz |
| Samplingi määr | Up to 1 GSa/s |
| Mälu sügavus | 8M (single channel) |
| Vertikaalne vahemik | 2mV / div ~ 10V / div |
| Vertikaalne eraldusvõime | 8 bitine |
| Lainekuju generaator | Siinus, ruut, Ramp, Exponential, Noise, DC |
| Liides | USB-host, USB-seade |
| Kaal | 1.9 kg |
| Mõõdud (P x K x L) | 318 mm x 150 mm x 110 mm |
10. Garantii ja tugi
Garantiiteabe ja tehnilise toe saamiseks lugege ostu sooritamisel kaasas olnud dokumente või võtke ühendust edasimüüjaga. Garantiinõuete esitamiseks hoidke ostutõend alles.