1. Uvod
The KWS-V30 is a versatile 6-in-1 USB tester designed to measure various electrical parameters of USB power sources and devices. It features an IPS high-definition color display for clear readings and supports high-power flash charging protocols. This manual provides detailed instructions for its setup, operation, maintenance, and troubleshooting.
2. Značajke proizvoda
- 6-u-1 ekran: Simultaneously shows current, voltage, timing, power, capacity, and electricity.
- IPS High-Definition Color Display: Offers a 160-degree wide viewing angle and high brightness for excellent readability.
- Jaka kompatibilnost: Supports 65W/120W super flash charging protocols when used with original chargers.
- Kompaktan dizajn: Portable and easy to use for various testing needs.
3. Podešavanje i povezivanje
The KWS-V30 USB Tester is designed for simple plug-and-play operation. Follow these steps to connect and begin monitoring:
- Identifikujte portove: The tester has a male USB-A connector on one end and a female USB-A port on the other.
- Povežite se na izvor napajanja: Plug the male USB-A connector of the KWS-V30 into your USB power source (e.g., wall charger, power bank, computer USB port).
- Povežite uređaj: Plug the USB charging cable of the device you wish to test into the female USB-A port of the KWS-V30.
- Uključeno: The tester will automatically power on and display readings once connected to a live power source and a device drawing power.

4. Uputstvo za upotrebu
Once connected, the KWS-V30 will immediately begin displaying real-time data on its IPS color screen. The display shows six key parameters:
- Voltage (V): Razlika električnog potencijala.
- Struja (A): The flow rate of electric charge.
- Vremenski raspored (H): The duration of the charging process in hours.
- Snaga (W): The rate at which electrical energy is transferred.
- Kapacitet (mAh): The total charge transferred, typically used for battery capacity.
- Electricity (Wh): The total energy consumed.
The IPS display ensures that all these indicators are visible at a glance, even from wide angles.

The KWS-V30 is compatible with various charging technologies, including 65W/120W super flash charging. For optimal performance and accurate readings with these high-speed charging methods, ensure you are using the original charger provided with your device.

Video 4.1: Demonstration of the KWS-V30 USB Tester in action, showing real-time voltage, current, and power readings during device charging.
5. Održavanje
To ensure the longevity and accurate performance of your KWS-V30 USB Tester, please follow these maintenance guidelines:
- Održavati suhom: Avoid exposing the tester to moisture or liquids.
- Očistite nježno: Za čišćenje uređaja koristite meku, suhu krpu. Ne koristite jake hemikalije ili abrazivne materijale.
- Izbjegavajte ekstremne temperature: Store and operate the tester within ordinary temperature ranges. Extreme heat or cold can affect its performance and lifespan.
- Pažljivo rukujte: Izbjegavajte ispuštanje ili izlaganje uređaja jakim udarima.
6. Otkrivanje problema
If you encounter issues with your KWS-V30 USB Tester, refer to the following common problems and solutions:
- Bez prikaza:
- Ensure the tester is securely plugged into a working USB power source.
- Verify that a device is connected to the tester and is drawing power. - Netačna očitavanja:
- Check all connections to ensure they are firm and stable.
- Ensure you are using a compatible and functional USB cable.
- If testing high-power charging, use the original charger for the device. - Uređaj se ne puni:
- Confirm that the power source is active and providing sufficient power.
- Test the charging cable directly without the tester to rule out cable issues.
Ako problemi potraju, obratite se korisničkoj podršci za daljnju pomoć.
7. Specifikacije
| Atribut | Vrijednost |
|---|---|
| Broj modela | KWS-V30 |
| Brand Name | JUANJUAN |
| Display Type | Digital Only (IPS Color Display) |
| Snabdijevanje voltage | DC 4-30V |
| Measuring Range (Current) | 0-6.5A |
| Minimum Test Current | 0.02A |
| Raspon snage | 0-195W |
| Vremenski opseg | 0-990 H |
| Raspon kapaciteta | 0-99999mAh |
| Klasa tačnosti | Visoko |
| Radna temperatura | Ordinary temperature |
| Dimenzije | 60 mm x 26 mm x 13 mm (2.36" x 1.02" x 0.51") |
| Težina proizvoda | 25g |
| DIY Supplies | Električni |
| Baterija uključena | br |
| Visoko zabrinjavajuća hemikalija | Nema |
| Porijeklo | kontinentalna Kina |
| Certifikacija | Nema |

8. Savjeti za korisnike
- Sigurne veze: Always ensure that the USB tester and all connected cables are firmly seated to prevent intermittent readings or connection issues.
- Use Original Chargers for Fast Charging: When testing devices that support high-wattage fast charging (e.g., 65W/120W), use the original charger and cable to ensure the tester accurately reflects the charging performance.
- Monitor Over Time: Utilize the timing and capacity features to monitor charging cycles and assess the health or efficiency of your batteries and chargers over extended periods.
- Uslovi okoline: While designed for ordinary temperatures, avoid using the tester in extremely hot, cold, or humid environments to maintain accuracy and prevent damage.
9. Garancija i podrška
For any questions, technical support, or warranty inquiries regarding your KWS-V30 USB Tester, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.





