NJTY T3 Multimeter Instruction Manual

Introdução

This manual provides detailed instructions for the safe and effective use of the NJTY T3 Digital Multimeter. Please read this manual thoroughly before operation and retain it for future reference. The NJTY T3 is a rechargeable, auto-ranging digital multimeter designed for accurate measurements of AC/DC voltage, resistance, and features Non-Contact Voltage (NCV) detection and live wire testing.

Image: The NJTY T3 Digital Multimeter, showing its main unit, red and black test probes, and a USB-C charging cable connected.

Informações de segurança

Always adhere to safety precautions when using any electrical testing equipment. Failure to do so may result in injury or damage to the device.

• Não ultrapasse os valores máximos de entrada especificados para cada função.
• Certifique-se de que os cabos de teste estejam em boas condições e devidamente conectados antes de realizar as medições.
• Tenha cuidado ao trabalhar com voltagtensões acima de 30V AC RMS, 42V de pico ou 60V DC, pois representam risco de choque elétrico.
• Não utilize o multímetro se ele parecer danificado ou se a caixa estiver aberta.
• Always disconnect power to the circuit under test before measuring resistance or continuity.
• Use o Vol. sem contatotage (NCV) function as an initial check, but always verify with direct contact measurements when safety is critical.

Conteúdo da embalagem

Verifique se todos os itens estão presentes na embalagem:

• NJTY T3 Multimeter (1 unit)
• Test Leads (1 pair, red and black)
• Cabo de carregamento tipo C (1 unidade)
• Manual de instruções (1 unidade)

Configurar

1. Carregamento inicial

The NJTY T3 Multimeter features a built-in rechargeable Lithium Ion battery. Before first use, or if the low battery indicator is displayed, charge the device using the provided Type-C charging cable.

1. Conecte a extremidade Tipo C do cabo de carregamento à porta de carregamento do multímetro.
2. Connect the USB-A end of the charging cable to a standard USB power adapter (not included) or a computer's USB port.
3. The charging indicator on the multimeter will illuminate during charging and turn off when fully charged.

Image: The NJTY T3 Multimeter being charged via its Type-C port, connected to a laptop.

2. Conectando cabos de teste

Insert the red test lead into the "VΩ" input jack and the black test lead into the "COM" input jack. Ensure they are securely seated.

Instruções de operação

The NJTY T3 Multimeter features an auto-ranging function, simplifying operation by automatically detecting the measurement type and range.

1. Ligar/desligar

Press and hold the power button to turn the multimeter on or off. The device will automatically shut off after approximately 15 minutes of inactivity to conserve battery life.

2. Automatic Measurement (Auto-Ranging)

In auto-ranging mode, the multimeter will automatically identify and measure AC voltage, CC voltage, or resistance when the test leads are applied to a circuit. The display will show the measurement type (AC, DC, Ω) and the value.

Image: The NJTY T3 Multimeter screen showing "Auto function scan" and icons representing AC/DC voltage, resistance, continuity, NCV, and flashlight functions.

3. AC / DC Voltage Medição

1. Certifique-se de que o multímetro esteja ligado.
2. Connect the test leads to the circuit points where voltage needs to be measured. The multimeter will automatically detect AC or DC voltage.
3. Leia o vol.tagO valor exibido na tela.

Image: Two separate images showing the NJTY T3 Multimeter measuring AC voltage from a power strip and DC voltage from a 9V battery.

4. Medição de resistência

1. Importante: Certifique-se de que o circuito esteja desenergizado antes de medir a resistência.
2. Connect the test leads across the component or circuit section where resistance is to be measured.
3. The multimeter will display the resistance value in Ohms (Ω), Kilo-Ohms (KΩ), or Mega-Ohms (MΩ).

Image: Two separate images showing the NJTY T3 Multimeter measuring resistance of a resistor and performing a continuity test on a wire.

5. Volume sem contatotage (NCV) Detecção

The NCV function allows for safe detection of live wires without direct contact.

1. Press the NCV button (if available, or ensure NCV mode is active).
2. Bring the NCV sensor at the top of the multimeter close to the wire or outlet.
3. The multimeter will emit an audible beep and the display will indicate the presence of AC voltage, with increasing intensity as it gets closer to the source.

Image: The NJTY T3 Multimeter detecting non-contact voltage near an electrical wall outlet, with the screen showing "EF" and a signal strength indicator.

6. Teste de Fios Energizados

Essa função ajuda a identificar fios energizados em um circuito de corrente alternada.

1. Insert the red test probe into the socket or touch it to the wire you want to test.
2. If the multimeter emits an alarm sound and the screen changes to indicate "LIVE", it signifies a live wire.

Image: The NJTY T3 Multimeter's red probe inserted into an electrical outlet for live wire testing, with the screen displaying "LIVE".

7. Teste de Continuidade

1. Importante: Certifique-se de que o circuito esteja desenergizado antes de realizar um teste de continuidade.
2. Connect the test leads across the component or wire to be tested.
3. If continuity exists (resistance is low, typically below 50Ω), the multimeter will emit an audible beep.

8. Dados em espera

Pressione o botão "HOLD" para congelar a leitura atual no visor. Pressione-o novamente para liberar a função de retenção.

9. Lanterna e luz de fundo

The multimeter includes a built-in flashlight for illuminating the test area and a backlight for the display, enhancing visibility in low-light conditions. Refer to the device buttons for activation (typically a short press of the power button or a dedicated light button).

Image: The NJTY T3 Multimeter with its integrated flashlight active, illuminating a dark electrical panel.

Manutenção

1. Limpeza

Wipe the multimeter's case with a damp Use um pano e detergente neutro. Não utilize abrasivos ou solventes. Certifique-se de que o aparelho esteja desligado e desconectado de qualquer fonte de energia antes de limpá-lo.

2. Cuidados com a bateria

The built-in Lithium Ion battery should be charged regularly, especially if the device is not used for extended periods. The automatic shut-off feature helps prolong battery life. A low battery indicator will appear on the display when charging is required.

Image: The NJTY T3 Multimeter screen showing a low battery warning icon, indicating the need for recharging.

3. Armazenamento

Store the multimeter in a cool, dry place, away from direct sunlight and extreme temperatures. Disconnect test leads when storing.

Solução de problemas

Especificações

Image: The NJTY T3 Multimeter demonstrating NCV detection alongside a table detailing its technical specifications.

Garantia e Suporte

Informações de garantia

For specific warranty terms and conditions, please refer to the warranty card included with your product or contact the seller directly. Warranty coverage typically addresses manufacturing defects under normal use.

Suporte ao cliente

If you encounter any issues or have questions regarding the NJTY T3 Multimeter, please contact your retailer or the manufacturer's customer support channel. Refer to the "after-sales channel" information provided in your product packaging for contact details.