1. Introduzione
Thank you for choosing the NJTY Voltage Tester & Digital Multimeter Bundle. This comprehensive kit provides essential tools for electrical testing, suitable for both DIY projects and professional applications. This manual provides detailed instructions for the safe and effective use of both the Digital Multimeter and the Non-Contact VoltageTester.
2. Prodotto finitoview
This bundle includes two primary devices:
- NJTY T3 Digital Multimeter: A compact device with a vibrant color screen for precise measurements of AC/DC voltage, continuity, resistance, and more.
- NJTY Vol. senza contattotageTester: A pen-style tester with voice alerts for identifying live and neutral wires, featuring non-contact voltage detection and breakpoint testing.

Figure 2.1: The NJTY Voltage Tester and Digital Multimeter Bundle.
3. Impostazione
3.1. NJTY T3 Digital Multimeter Setup
The NJTY T3 Digital Multimeter features a built-in rechargeable battery. Before first use, ensure the device is fully charged.
- Ricarica: Connect the multimeter to a standard USB power source using the provided Type-C USB cable. The charging indicator will illuminate.
- Puntali di prova: Insert the red test lead into the 'VΩmA' input jack and the black test lead into the 'COM' input jack. Ensure a secure connection.

Figure 3.1: The NJTY T3 Digital Multimeter connected for Type-C charging.
3.2. NJTY Non-Contact Voltage Tester Setup
Il volume senza contattotage Tester is typically powered by internal batteries. Ensure they are properly installed or charged if rechargeable.
- Accensione: Press the power button to turn on the device. A self-test may occur.
4. Istruzioni per l'uso
4.1. NJTY T3 Digital Multimeter Operation
The multimeter features an auto-function scan for ease of use.
- Accensione/spegnimento: Press and hold the power button to turn the multimeter on or off.
- Auto Function Scan: The multimeter automatically detects the type of measurement (AC/DC voltage, resistance, continuity) when the test leads are connected to a circuit.
- Misurazione AC/DC Voltage: Collegare i puntali di prova attraverso il circuito o il componente per misurare la tensionetage. The display will show the reading.
- Test di continuità: In continuity mode, the multimeter will emit an audible beep if the resistance between the two test points is below approximately 50Ω, indicating a continuous circuit.
- Misura della resistenza: Collegare i puntali di prova al componente per misurarne la resistenza.
- NCV (Volume senza contattotage) Rilevamento: Spostare la parte superiore del multimetro vicino a una tensione CAtage sorgente. Il dispositivo indicherà la presenza di voltage senza contatto diretto.
- Data Hold: Premere il pulsante 'HOLD' per bloccare la lettura corrente sul display. Premere nuovamente per rilasciare.
- Torcia/Retroilluminazione: The multimeter includes a built-in flashlight and backlight for improved visibility in dark environments.

Figure 4.1: Key features and display of the NJTY T3 Digital Multimeter.

Figura 4.2: Volume senza contattotage (NCV) detection with the Digital Multimeter.

Figure 4.3: The flashlight function of the Digital Multimeter for dark environments.
4.2. NJTY Non-Contact Voltage Funzionamento del tester
il volumetage tester is designed for quick and safe voltage rilevamento.
- NCV (Volume senza contattotage) Rilevamento: Place the tip of the tester near a wire or outlet. The device will indicate the presence of AC voltage tramite avvisi visivi e acustici.
- Regolazione della sensibilità: The tester offers dual sensitivity ranges (12-1000V and 48-1000V). Use the sensitivity button to switch between low and high sensitivity modes as needed for different applications.
- Live/Neutral Wire Identification: The tester uses voice alerts to audibly distinguish between live (hot) and neutral wires, enhancing safety and ease of identification.
- Break-Point Test: Use the tester to identify breaks in wires or cables. Move the tester along the wire; the absence of a signal indicates a break.
- Flashlight & Laser: The tester includes a built-in flashlight for illuminating work areas and a laser for precise alignment or pointing.

Figure 4.4: Sensitivity adjustment feature of the VoltageTester.

Figura 4.5: Il Voltage Tester's voice alert system for identifying live wires.

Figure 4.6: Using the Voltage Tester for break-point detection in wires.

Figura 4.7: Il Voltage Tester's integrated flashlight and laser for enhanced utility.
5. Manutenzione
- Pulizia: Pulire i dispositivi con un panno asciutto e pulito. Non utilizzare detergenti abrasivi o solventi.
- Magazzinaggio: Store the bundle in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Care (Multimeter): Recharge the multimeter regularly, especially if it will not be used for an extended period, to maintain battery health.
6. Risoluzione Dei Problemi
- Il dispositivo non si accende: Ensure the battery is charged (Multimeter) or properly installed (Voltage Tester).
- Inaccurate Readings (Multimeter): Check test lead connections. Ensure the correct measurement mode is selected (though auto-scan helps).
- No Detection (Voltage Tester): Ensure the device is powered on. Adjust sensitivity if necessary.
- Funzionamento intermittente: Controllare che non vi siano collegamenti allentati o che la batteria sia scarica.
7. Specifiche
7.1. NJTY T3 Digital Multimeter
| Parametro | Valore |
|---|---|
| Visualizza i conteggi | 4000 Conteggi |
| Volume ACtage Gamma | 0.8V - 600V |
| Volume DCtage Gamma | 1.0V - 600V |
| Intervallo di resistenza | 0 - 40 MΩ |
| Continuity Threshold | <50Ω |
| Fonte di alimentazione | Ricaricabile (tipo C) |
7.2. NJTY Non-Contact VoltageTester
| Parametro | Valore |
|---|---|
| Volume ACtage Range (bassa sensibilità) | 12V - 1000V |
| Volume ACtage Range (alta sensibilità) | 48V - 1000V |
| Gamma di frequenza | Frequenza 50/60 Hz |
| Valutazione di sicurezza | EN61010-1/1000V CAT III |
8. Informazioni sulla sicurezza
ATTENZIONE: Prestare sempre la massima attenzione quando si lavora con l'elettricità. Il mancato rispetto delle norme di sicurezza può causare lesioni gravi o mortali.
- Always test on a known live circuit before use to ensure the device is functioning correctly.
- Non utilizzare i dispositivi se sembrano danneggiati o non funzionano correttamente.
- Do not exceed the maximum input values specified for each device.
- Indossare dispositivi di protezione individuale (DPI) adeguati, come guanti isolanti e occhiali di sicurezza.
- Do not attempt to repair or modify the devices. Refer all servicing to qualified personnel.
- Tenere fuori dalla portata dei bambini.
9. Garanzia e supporto
NJTY products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official NJTY websito. Conservare la prova d'acquisto per eventuali reclami in garanzia.