1. ບົດແນະນຳ
This manual provides essential information for the safe and effective operation of your VOLTCRAFT DSO-2202H + AFG Handheld Oscilloscope. This versatile device combines the functions of an oscilloscope, a multimeter, and an arbitrary function generator (AFG) into a single portable unit. Please read this manual thoroughly before using the device to ensure proper handling and to prevent damage or injury.
2. ຂໍ້ມູນຄວາມປອດໄພ
Always observe the following safety precautions to avoid personal injury and prevent damage to the instrument or other equipment.
- ອ່ານຄໍາແນະນໍາທັງຫມົດ: Before operating the device, read and understand all safety and operating instructions.
- Use proper probes: Use only probes and accessories rated for the voltage and current of the measurement.
- ຫຼີກລ້ຽງສະພາບທີ່ຊຸ່ມ: ຢ່າປະຕິບັດອຸປະກອນໃນປຽກຫຼື damp ສະພາບແວດລ້ອມ.
- ການຕໍ່ດິນ: Ensure proper grounding when connecting to mains power or high-voltage ວົງຈອນ.
- ຫ້າມເປີດຄasing: Refer all servicing to qualified service personnel. Opening the casing may expose you to dangerous voltages.
- Observe all ratings: Do not exceed the maximum input ratings of the device.
3. ຜະລິດຕະພັນເກີນview
The VOLTCRAFT DSO-2202H + AFG is a compact, multi-functional test instrument designed for various electrical measurement tasks. It features a clear color LCD display and intuitive controls.

ຮູບ 1: ດ້ານຫນ້າ view of the VOLTCRAFT DSO-2202H + AFG Handheld Oscilloscope with connected test probes. The display shows a voltage reading, and the control panel with function buttons and navigation keys is visible below.
ຄຸນນະສົມບັດທີ່ສໍາຄັນ:
- 3-in-1 Oscilloscope, Multimeter, and Waveform Generator
- 3.5-inch (8.89 cm) Color LCD Screen (320 x 240 pixels)
- USB Type-C Interface for connectivity and data storage
- Durable and robust design
4. ຕັ້ງຄ່າ
Follow these steps for initial setup of your device.
4.1 ການເປີດ/ປິດ
- ເພື່ອເປີດອຸປະກອນ, ໃຫ້ກົດຄ້າງໄວ້ ພະລັງງານ button located on the side/top panel.
- The color LCD screen will illuminate, displaying the startup sequence.
- ເພື່ອປິດໄຟ, ກົດປຸ່ມແລະກົດປຸ່ມ ພະລັງງານ button again until the device shuts down.
4.2 ການເຊື່ອມຕໍ່ Probes
For oscilloscope functions, connect the oscilloscope probes to the BNC connectors. For multimeter functions, connect the test leads to the appropriate input jacks (VΩ+C, mA, A, COM) at the bottom of the device.

ຮູບ 2: ຂ້າງ view of the device showing the kickstand extended for desktop use and an oscilloscope probe connected to the BNC input. The multimeter input jacks are visible at the bottom.
5. ຄໍາແນະນໍາການດໍາເນີນງານ
The DSO-2202H + AFG offers three primary modes of operation: Oscilloscope, Multimeter, and Arbitrary Function Generator.
5.1 ໂໝດ Oscilloscope
This mode allows you to visualize and analyze electrical signals. The device features 2 channels and a 200MHz bandwidth.
- ກົດ ໂໝດ ເພື່ອເລືອກໂໝດ Oscilloscope.
- Connect the oscilloscope probe(s) to the circuit under test.
- ໃຊ້ CH1/2 button to switch between channels or view ທັງສອງ.
- Adjust the vertical sensitivity (V/div) and horizontal time base (s/div) using the navigation buttons.
- ໃຊ້ Trig/Δ button to set trigger conditions for stable waveform display.
- ໄດ້ ອັດຕະໂນມັດ button can automatically adjust settings for a stable waveform.

Figure 3: The device displaying a waveform in oscilloscope mode. The screen shows voltage and time divisions, indicating a signal measurement.
5.2 ໂໝດ Multimeter
The multimeter function allows for precise measurements of voltage, current, resistance, capacitance, and continuity.
- ກົດ ໂໝດ ເພື່ອເລືອກໂໝດມັນຕິມີເຕີ.
- Connect the test leads to the appropriate input jacks (e.g., VΩ+C for voltage/resistance/capacitance, A or mA for current, COM for common).
- Select the desired measurement function (e.g., DC Voltage, AC Voltage, Resistance) using the function buttons (F1-F4) or navigation keys.
- ອ່ານຄ່າການວັດແທກໃນຈໍສະແດງຜົນ.
5.3 Arbitrary Function Generator (AFG) Mode
The AFG allows you to generate various waveforms for testing circuits.
- ກົດ ໂໝດ button to select AFG mode.
- Connect the output of the AFG to the circuit requiring a signal input.
- Use the function buttons (F1-F4) and navigation keys to select waveform type (sine, square, triangle, etc.), frequency, amplitude, and offset.
- Adjust parameters as needed for your application.
5.4 ການເກັບຮັກສາຂໍ້ມູນ
The USB Type-C port can be used for data storage. Connect the device to a computer using a USB Type-C cable to transfer saved waveforms or measurement data.
6. ບໍາລຸງຮັກສາ
ການບຳລຸງຮັກສາທີ່ເໝາະສົມຮັບປະກັນອາຍຸການໃຊ້ງານທີ່ຍາວນານ ແລະ ຄວາມແມ່ນຍຳຂອງອຸປະກອນຂອງທ່ານ.
- ທໍາຄວາມສະອາດ: ເຮັດຄວາມສະອາດອຸປະກອນເປັນປະຈຳດ້ວຍຜ້າອ່ອນໆແລະແຫ້ງ. ຢ່າໃຊ້ນໍ້າຢາເຮັດຄວາມສະອາດທີ່ມີສີຂັດ ຫຼື ຕົວລະລາຍ.
- ການເກັບຮັກສາ: ເກັບຮັກສາອຸປະກອນໄວ້ໃນບ່ອນທີ່ເຢັນ, ແຫ້ງ, ຫ່າງຈາກແສງແດດໂດຍກົງ ແລະອຸນຫະພູມທີ່ຮ້າຍກາດ.
- ການດູແລຫມໍ້ໄຟ: If the device has an internal rechargeable battery, ensure it is charged periodically if stored for long periods to maintain battery health.
- Probe Care: Inspect probes and test leads for damage before each use. Replace any damaged accessories immediately.
7. ການແກ້ໄຂບັນຫາ
ຖ້າທ່ານພົບບັນຫາກັບອຸປະກອນຂອງທ່ານ, ໃຫ້ອ້າງອີງເຖິງຂັ້ນຕອນການແກ້ໄຂບັນຫາທົ່ວໄປຕໍ່ໄປນີ້.
- ອຸປະກອນບໍ່ເປີດ: Ensure the device is charged or connected to a power source. Check the power button for proper engagement.
- ບໍ່ມີການສະແດງຜົນ: If the device powers on but the screen is blank, try adjusting the display brightness (if available) or restarting the device.
- ການອ່ານບໍ່ຖືກຕ້ອງ: Verify that probes and test leads are correctly connected and not damaged. Ensure the correct measurement mode and range are selected. Calibrate the device if necessary (refer to advanced settings or contact support).
- Unstable waveform: In oscilloscope mode, adjust the trigger level, trigger source, and time base settings. Use the Auto button for initial setup.
For persistent issues, contact VOLTCRAFT customer support or your retailer.
8. ຂໍ້ມູນຈໍາເພາະ
| ຂໍ້ມູນຈໍາເພາະ | ມູນຄ່າ |
|---|---|
| ຜູ້ຜະລິດ | VOLTCRAFT |
| ໝາຍເລກຕົວແບບ | VC-13438620 (DSO-2202H + AFG) |
| ຂະໜາດສິນຄ້າ (L x W x H) | 17 x 12 x 40 cm |
| ນ້ຳໜັກ | 600 ກຣາມ |
| ວັດສະດຸ | ພາດສະຕິກ |
| Oscilloscope Bandwidth | 200 MHz |
| ຊ່ອງ | 2-ຊ່ອງ |
| Sampອັດຕາ le | 1 GSa/ວິ |
| ຄວາມເລິກຂອງຫນ່ວຍຄວາມຈໍາ | 8 kpts |
| ຄວາມລະອຽດ | 8 ບິດ |
| ຈໍສະແດງຜົນ | 3.5-inch (8.89 cm) Color LCD (320 x 240 pixels) |
| ການໂຕ້ຕອບ | USB Type-C |
| ລະບົບການວັດແທກ | ເມຕຣິກ |
| ແບດເຕີລີ່ລວມ | ບໍ່ |
| ຕ້ອງໃຊ້ແບັດເຕີຣີ | ບໍ່ |
9. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
For warranty information, please refer to the documentation provided with your purchase or contact your retailer. For technical support, visit the official VOLTCRAFT webເວັບໄຊ ຫຼືຕິດຕໍ່ພະແນກບໍລິການລູກຄ້າຂອງເຂົາເຈົ້າ.





