1. Johdanto
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. Turvallisuustiedot
Always observe the following safety precautions to avoid personal injury and prevent damage to the instrument or other equipment.
- Lue kaikki ohjeet: 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.
- Vältä kosteita olosuhteita: Älä käytä laitetta märässä tai damp ympäristöissä.
- Maadoitus: Ensure proper grounding when connecting to mains power or high-voltage piirit.
- Älä avaa c:täasing: Refer all servicing to qualified service personnel. Opening the casinvoi altistaa sinut vaaralliselle volyymilletages.
- Observe all ratings: Älä ylitä laitteen enimmäissyöttötehoa.
3. Tuote ohiview
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.

Kuva 1: Etuosa 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.
Tärkeimmät ominaisuudet:
- 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
- Kestävä ja vankka rakenne
4. Asennus
Follow these steps for initial setup of your device.
4.1 Virran kytkeminen päälle/pois
- Käynnistä laite painamalla ja pitämällä Tehoa button located on the side/top panel.
- The color LCD screen will illuminate, displaying the startup sequence.
- Katkaise virta pitämällä -painiketta painettuna Tehoa painiketta uudelleen, kunnes laite sammuu.
4.2 Antureiden kytkeminen
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.

Kuva 2: Sivu 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. Käyttöohjeet
The DSO-2202H + AFG offers three primary modes of operation: Oscilloscope, Multimeter, and Arbitrary Function Generator.
5.1 Oskilloskooppitila
This mode allows you to visualize and analyze electrical signals. The device features 2 channels and a 200MHz bandwidth.
- Paina tila -painiketta valitaksesi oskilloskooppitilan.
- Connect the oscilloscope probe(s) to the circuit under test.
- Käytä CH1/2 button to switch between channels or view molemmat.
- Adjust the vertical sensitivity (V/div) and horizontal time base (s/div) using the navigation buttons.
- Käytä Trig/Δ -painiketta asettaaksesi liipaisuehdot vakaan aaltomuodon näytölle.
- The Auto 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 Yleismittaritila
The multimeter function allows for precise measurements of voltage, current, resistance, capacitance, and continuity.
- Paina tila -painiketta valitaksesi yleismittaritilan.
- 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).
- Valitse haluttu mittaustoiminto (esim. DC Voltage, AC Voitage, Resistance) using the function buttons (F1-F4) or navigation keys.
- Lue mittausarvo näytöltä.
5.3 Arbitrary Function Generator (AFG) Mode
The AFG allows you to generate various waveforms for testing circuits.
- Paina tila 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, ampvalotus ja offset.
- Adjust parameters as needed for your application.
5.4 Tietojen tallennus
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. Huolto
Proper maintenance ensures the longevity and accuracy of your device.
- Puhdistus: Puhdista laite säännöllisesti pehmeällä, kuivalla liinalla. Älä käytä hankaavia puhdistusaineita tai liuottimia.
- Varastointi: Säilytä laitetta viileässä, kuivassa paikassa, poissa suorasta auringonvalosta ja äärimmäisistä lämpötiloista.
- Akun hoito: If the device has an internal rechargeable battery, ensure it is charged periodically if stored for long periods to maintain battery health.
- Anturin hoito: Inspect probes and test leads for damage before each use. Replace any damaged accessories immediately.
7. Vianmääritys
If you encounter issues with your device, refer to the following common troubleshooting steps.
- Laite ei käynnisty: Ensure the device is charged or connected to a power source. Check the power button for proper engagement.
- Ei näyttöä: If the device powers on but the screen is blank, try adjusting the display brightness (if available) or restarting the device.
- Virheelliset lukemat: 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).
- Epävakaa aaltomuoto: 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. Tekniset tiedot
| Erittely | Arvo |
|---|---|
| Valmistaja | VOLTCRAFT |
| Mallinumero | VC-13438620 (DSO-2202H + AFG) |
| Tuotteen mitat (P x L x K) | 17 x 12 x 40 cm |
| Paino | 600 grammaa |
| Materiaali | Muovi |
| Oskilloskoopin kaistanleveys | 200 MHz |
| Kanavat | 2-kanava |
| Sample Korko | 1 GSa/s |
| Muistin syvyys | 8 kpts |
| Resoluutio | 8-bittinen |
| Näyttö | 3.5-inch (8.89 cm) Color LCD (320 x 240 pixels) |
| Käyttöliittymä | USB Type-C |
| Mittausjärjestelmä | Metrinen |
| Mukana paristot | Ei |
| Paristot vaaditaan | Ei |
9. Takuu ja tuki
For warranty information, please refer to the documentation provided with your purchase or contact your retailer. For technical support, visit the official VOLTCRAFT websivustolla tai ota yhteyttä asiakaspalveluun.