1. Giriş
This manual provides detailed instructions for the safe and effective use of your NJTY Non-Contact Voltage Tester, Model T-03A. This device is designed for non-contact detection of AC voltage, offering a safe method for identifying live wires, checking for circuit breaks, and performing general electrical troubleshooting.

Image 1: NJTY Non-Contact Voltage Tester, Model T-03A. This image shows the overall design of the voltage tester, highlighting its compact and pen-like form factor with a red and black casing, green and red buttons, and an integrated LED flashlight at the tip.
2. Güvenlik Bilgileri
Always adhere to local safety regulations and practices when working with electricity. This device is designed to enhance safety, but it does not replace proper electrical safety procedures. Failure to follow these instructions may result in electric shock, injury, or death.
- Test cihazı hasarlı görünüyorsa veya düzgün çalışmıyorsa kullanmayın.
- Verify the tester's functionality on a known live circuit before and after each use.
- Always wear appropriate personal protective equipment (PPE), such as insulated gloves and safety glasses.
- Belirtilen hacmi aşmayıntage range (12V-1000V AC or 48V-1000V AC).
- Keep fingers behind the finger guard during operation.
- Avoid direct contact with live conductors. This is a non-contact device.
- Cihazı ıslak ortamlarda veya patlayıcı maddeler içeren ortamlarda kullanmayın.
- The integrated laser pointer should not be aimed directly at eyes or reflective surfaces.
3. Ürün Bittiview
Voltajınızın bileşenlerini iyice öğrenin.tage test cihazı:

Image 2: Diagram illustrating the key components of the NJTY Voltage Tester. Labels include the NCV sensor head (probe), laser pointer, flashlight, signal/indicator lights, high/low signal indicator, power button, sensitivity switch (H/L), lighting/laser switch, and battery cover.
- Prob (NCV Sensör Başlığı): AC hacmini algılartage temassız.
- Lazer işaretleyici: Emits a red laser for targeting test points.
- El feneri: Loş ışık koşullarında aydınlatma sağlar.
- Signal / Indicator: Hacmin görsel gösterimitage algılama.
- High/Low Signal Indicator: Displays the detected voltage seviyesi.
- Güç Düğmesi: Cihazı açıp kapatır.
- Sensitivity Switch (H/L): Toggles between high and low sensitivity modes.
- Lighting / Laser Switch: Activates the flashlight or laser pointer.
- Batarya kapağı: Access point for battery replacement.
4. Kurulum
4.1 Pil Kurulumu
The NJTY Voltage Tester requires two AAA batteries (included). To install or replace batteries:
- Unscrew the battery cover at the bottom of the tester (refer to Image 2, item 9).
- İki adet 1.5V AAA pili, doğru kutuplara (+/-) dikkat ederek takın.
- Pil kapağını yerine takın ve vidalarını sıkıca kapatın.

Resim 3: Yakın çekim view of the battery cover at the base of the NJTY Voltage Tester, showing how it can be unscrewed for battery access.
5. Kullanım Talimatları
5.1 Güç Açma/Kapatma
- Açmak için, düğmesine basın ve basılı tutun. Güç Düğmesi (refer to Image 2, item 6) until the indicator lights illuminate.
- Kapatmak için tuşunu basılı tutun. Güç Düğmesi again. The device will also automatically shut down after five minutes of inactivity to conserve battery life.
5.2 Hassasiyet Modları
The tester features two sensitivity modes for different applications:
- High Sensitivity Mode (12V-1000V AC): Düşük hacimleri tespit etmek için uygundur.tages or for general detection. Press the Sensitivity Switch (H/L) (refer to Image 2, item 7) to select this mode.
- Low Sensitivity Mode (48V-1000V AC): Ideal for detecting higher voltages or when precise localization is needed to avoid false positives from adjacent wires. Press the Sensitivity Switch (H/L) Bu modu seçmek için

Image 4: Comparison of high and low sensitivity modes. The top row shows high sensitivity (12-1000V) detecting live wire and null wire. The bottom row shows low sensitivity (48-1000V) detecting live wire and null wire, demonstrating how the tester indicates voltage presence with visual and audible alerts.
5.3 Temassız Hacimtage (NCV) Tespiti
AC voltajını tespit etmek içintage:
- Test cihazını açın ve istediğiniz hassasiyet modunu seçin.
- Yerleştir Probe (NCV Sensor Head) near the conductor, outlet, or device you wish to test.
- AC hacmi isetage is detected, the tester will emit an audible alarm and the Signal / Indicator lights will illuminate, with the High/Low Signal Indicator showing the relative strength of the detected field.

Resim 5: Cilttage tester in use, demonstrating NCV detection on an electrical outlet and a wire. It also shows the buzzer alarm, flashlight illuminating a circuit box, and the laser pointer targeting a ceiling light.
5.4 Breakpoint Testing
This feature helps locate breaks in live wires:
- Ensure the wire is live and the tester is in an appropriate sensitivity mode.
- Taşı Probe (NCV Sensor Head) along the length of the wire.
- Test cihazı ses seviyesini gösterecektir.tage up to the point of the break. The absence of a signal beyond a certain point indicates a break in the circuit.

Image 6: Illustration of breakpoint testing. The tester indicates voltage on one side of a broken wire, and no voltage on the other side, pinpointing the location of the break.
5.5 El feneri
To activate the integrated LED flashlight for illuminating dark work areas:
- Basın Lighting / Laser Switch (refer to Image 2, item 8) once.
- Press it again to turn off the flashlight.

Image 7: The integrated LED flashlight of the voltage tester illuminating a dark electrical panel, demonstrating its utility in low-light environments.
5.6 Lazer İşaretleyici
To activate the laser pointer for precise targeting:
- Basılı tutun Lighting / Laser Switch (refer to Image 2, item 8) for a few seconds.
- Release the button to turn off the laser pointer.
- Dikkat: Do not stare into the laser beam or point it at people or animals.

Image 8: A hand holding the voltage tester, using its red laser pointer to indicate a specific button on an electrical control panel, highlighting its precision targeting capability.
6. Bakım
- Temizlik: Cihazı kuru ve yumuşak bir bezle silin. Aşındırıcı temizleyiciler veya çözücüler kullanmayın.
- Depolamak: Test cihazını serin, kuru bir yerde, doğrudan güneş ışığından ve aşırı sıcaklıklardan uzakta saklayın. Uzun süre saklayacaksanız, sızıntıyı önlemek için pilleri çıkarın.
- Pil Değişimi: Doğru okumalar sağlamak için düşük pil göstergesi göründüğünde pilleri hemen değiştirin.
7. Sorun Giderme
| Sorun | Olası Neden | Çözüm |
|---|---|---|
| Test cihazı açılmıyor. | Piller bitmiş veya yanlış takılmış. | Pil kutuplarını kontrol edin; pilleri değiştirin. |
| No detection on a known live circuit. | Low battery, incorrect sensitivity mode, or device malfunction. | Replace batteries, switch to high sensitivity mode (12V-1000V), or contact customer support. |
| Yanlış pozitifler (hacim tespit eder)tage where none exists). | Gürültülü elektrik ortamında yüksek hassasiyet modu. | Switch to low sensitivity mode (48V-1000V). |
8. Özellikler
| Özellik | Detay |
|---|---|
| Örnek | T-03A |
| Marka | NJTY |
| AC Hacmitage Aralık | 12V-1000V (High Sensitivity), 48V-1000V (Low Sensitivity) |
| Sıklık | 50/60Hz |
| Güç Kaynağı | 2 x 1.5V AAA Pil |
| Otomatik Kapanma | 5 dakikalık hareketsizlikten sonra |
| Göstergeler | Audible alarm, LED indicator lights |
| Ek Özellikler | Integrated LED flashlight, Laser pointer, Breakpoint testing |
| Ürün Boyutları | 0.1 x 0.1 x 0.1 inç |
| Ürün Ağırlığı | 1.8 Ons |
9. Kutuda Neler Var?
- 1 x NJTY Voltage Test Kalemi
- 2 x 1.5V AAA Pil
- 1 x İngilizce Kullanım Kılavuzu (Bu belge)
10. Garanti ve Destek
NJTY provides comprehensive after-sales support for sixty months from the date of purchase. If you encounter any issues with your NJTY Non-Contact Voltage Tester, Model T-03A, please contact our customer service team for assistance. Please refer to your purchase documentation for specific contact details.