1. Киришүү
The NOYAFA NF-824 is a versatile and essential tool designed for electrical professionals, home maintenance workers, and DIY enthusiasts. It accurately identifies circuit breakers on energized 90-230V AC electrical systems, performs GFCI outlet tests, and detects non-contact voltage (NCV). Featuring an HD LCD screen with signal strength display and adjustable sensitivity, this device simplifies electrical troubleshooting and enhances safety.
This manual provides detailed instructions for the safe and effective use of your NF-824 Circuit Breaker Finder and GFCI Outlet Tester.
2. Коопсуздук маалыматы
Электр системалары менен иштөөдө ар дайым коопсуздукка артыкчылык бериңиз. Бул коопсуздук көрсөтмөлөрүн аткарбоо электр шокуна, өрткө же жеке жаракатка алып келиши мүмкүн.
- Аппаратты колдонуудан мурун бардык нускамаларды окуп, түшүнүңүз.
- Эгерде аппарат бузулгандай көрүнсө же туура эмес иштесе, аны колдонбоңуз.
- Ensure the electrical system is within the specified voltage range (90-230V AC) before testing.
- Always wear appropriate personal protective equipment (PPE), such as safety glasses and insulated gloves, when working with electricity.
- Түзмөктү ачууга же өзгөртүүгө аракет кылбаңыз. Бардык тейлөө иштерин квалификациялуу адистерге тапшырыңыз.
- Аппаратты суудан жана нымдан алыс кармаңыз.
- Use caution when testing live circuits. Avoid touching exposed wires or terminals.
- The NCV function is for indication only; always verify voltage with a contact voltage tester before touching wires.
- Do not rely solely on this device for critical safety decisions. Always follow local electrical codes and safety practices.
3. Пакеттин мазмуну
Пакетиңизде бардык буюмдар бар экенин текшериңиз:
- 1x NF-824 Circuit Breaker Finder (Transmitter and Receiver)
- 1x 3-prong to 2-prong adapter
- 1x Light socket adapter
- 1x Alligator clip adapter
- 1x Type-C заряддоо кабели
- 1x Колдонуучунун колдонмосу
- 1x Ташуу кутусу

Figure 1: Complete accessory kit and carrying case for the NF-824.
4. Продукт бүтүп калдыview
4.1. Transmitter (Outlet Tester)
- Test Plug: Connects to standard electrical outlets.
- Master Control Screen: ЖК дисплей томду көрсөтөтtage, wiring status, and GFCI trip time.
- Кубат баскычы: Өткөргүчтү күйгүзөт/өчүрөт.
- HOLD баскычы: Учурдагы дисплейдеги окууну токтотот.
- GFCI баскычы: Initiates a GFCI test.
- Статус индикатору: Red/Green light indicating wiring faults.
- Type-C заряддоо порту: Ички батареяны кайра заряддоо үчүн.

Figure 2: Transmitter (Outlet Tester) in use, showing correct wiring and voltage.
4.2. Receiver (Breaker Finder)
- NCV индикатор жарыгы: Flashes when non-contact voltagе аныкталат.
- Master Control Screen: LCD display showing signal strength and NCV status.
- Сезимталдык которгуч: Adjusts the detection level (7 levels).
- Кубат баскычы: Ресиверди күйгүзөт/өчүрөт.
- LED жарык: Built-in flashlight for dark environments.
- Type-C заряддоо порту: Ички батареяны кайра заряддоо үчүн.

Figure 3: Receiver scanning a circuit breaker panel.
5. Орнотуу
5.1. Баштапкы заряддоо
Both the transmitter and receiver are equipped with built-in 3.7V lithium batteries. Before first use, fully charge both units using the provided Type-C charging cable. A full charge typically takes a few hours. The battery indicator on the LCD screen will show charging status.

Figure 4: Charging the NF-824 units via Type-C.
5.2. Attaching Adapters (If Needed)
Depending on your testing requirements, attach the appropriate adapter to the transmitter:
- 3-prong to 2-prong adapter: For testing older 2-prong outlets.
- Light socket adapter: For testing light bulb sockets.
- Alligator clip adapter: For direct connection to wires or terminals (use with extreme caution).
6. Иштөө нускамалары
6.1. Circuit Breaker Finding
- Plug in the Transmitter: Insert the NF-824 transmitter into the electrical outlet or fixture you wish to trace. Ensure it is securely connected. The transmitter's LCD will display the voltage and wiring status.
- Кабыл алуучуну иштетүү: Press and hold the power button on the receiver for a few seconds to turn it on. The receiver will enter "SCAN" mode.
- Сезгичтикти тууралоо: Use the sensitivity switch on the side of the receiver to set the desired detection level. Start with a lower sensitivity and increase if needed.
- Scan the Breaker Panel: Slowly move the tip of the receiver along the circuit breakers in the electrical panel. Maintain a consistent speed and distance from each breaker.
- Identify the Breaker: The receiver will provide visual (flashing light on the tip, signal strength on LCD) and audible (beeping) indications when it detects the correct circuit breaker. The strongest and most consistent signal indicates the target breaker.
- Текшерүү: Once identified, turn off the suspected breaker and check if the power to the original outlet/fixture is cut.

Figure 5: Receiver displaying signal strength while scanning.
Video 1: Demonstration of the NOYAFA NF-824 Circuit Breaker Finder in action, showing how to identify the correct breaker in a panel.
6.2. GFCI Outlet Testing
- Plug in the Transmitter: Insert the transmitter into a GFCI-protected outlet.
- Check Wiring Status: Observe the LCD display for the initial wiring status (e.g., "CORRECT").
- Perform GFCI Test: Press the "GFCI" button on the transmitter. The GFCI outlet should trip, cutting power to the outlet. The transmitter's display will show the trip time.
- GFCI баштапкы абалга келтирүү: Reset the GFCI outlet by pressing its reset button.
Note: If the GFCI does not trip, it may be faulty and should be inspected by a qualified electrician.
6.3. Контактсыз томtage (NCV) тестирлөө
- Activate NCV: The receiver automatically enters NCV mode when powered on.
- Scan for Voltage: Move the tip of the receiver near electrical wires, outlets, or devices.
- Detect Voltage: Эгерде AC voltage is present, the NCV indicator light on the receiver's tip will flash, and the LCD will show a signal strength bar. The intensity of the light and the number of bars indicate the strength of the detected voltage.

Figure 6: Receiver performing an NCV test on a cable.
6.4. Wiring Condition Detection
When the transmitter is plugged into an outlet, its LCD screen provides clear visual feedback on the wiring condition. The red/green indicator lights, combined with details on the large screen, can accurately diagnose 6 common wiring faults:
- Туура Wiring
- Ачык жер
- Ачык нейтралдуу
- Hot Open
- Ысык/нейтралдуу тескери
- Ысык/Жер тескери

Figure 7: Transmitter displaying different wiring fault conditions.
7. Техникалык тейлөө
- Тазалоо: Аппаратты кургак, жумшак чүпүрөк менен сүртүңүз. Абразивдүү тазалагычтарды же эриткичтерди колдонбоңуз.
- Сактагыч: Store the device in its carrying case in a cool, dry place when not in use.
- Батареяга кам көрүү: Recharge the batteries regularly, even if the device is not used frequently, to maintain battery health.
- Текшерүү: Periodically inspect the device and accessories for any signs of damage.
8. Кыйынчылыктарды
- No Power on Device: Түзмөктүн толук заряддалганын текшериңиз. Кубат баскычын бир нече секунд басып туруңуз.
- Inaccurate Breaker Identification:
- Adjust the receiver's sensitivity.
- Ensure the transmitter is securely plugged into the circuit being traced.
- Scan the breakers slowly and consistently.
- Minimize interference from other electrical devices.
- GFCI Test Fails:
- Ensure the outlet is indeed GFCI protected.
- If the GFCI does not trip, the outlet or its wiring may be faulty. Consult a qualified electrician.
- NCV көлөмүн аныктабай жататtage:
- Ensure the receiver is powered on and in NCV mode.
- Verify that the circuit is live.
- Adjust sensitivity if necessary.
9. Техникалык шарттар
| Өзгөчөлүк | Спецификация |
|---|---|
| Модель № | NF-824 |
| Заряддоо порту | Type-C USB (5V) |
| Автоматтык түрдө өчүрүү | 30мин |
| Төмөн кубаттагы эскертүү | Ооба |
| Outlet Tester Screen | Segment Code LCD |
| Outlet Tester Plug Type | CN, US, EU |
| Outlet Tester Battery | 3.7V 390mAh литий |
| Outlet Tester Max Operating Current | <50мА |
| Outlet Tester Charging Current | 500мА |
| Outlet Tester Standby Current | ≤10uA |
| Receiver Product Size | 60x38.5x132.5 мм |
| Кабылдагычтын экраны | Segment Code LCD |
| Кабылдагычтын сезгичтигин тууралоо | 7 деңгээл |
| Receiver NCV Range | ≥ AC 90 V |
| Receiver Signal Strength Indicator | 7 Gears |
| Кабыл алуучу LED жарык | Ооба |
| Кабылдагычтын батареясы | 3.7V 700mAh литий |
| Receiver Max Operating Current | <100мА |
| Receiver Charging Current | 700мА |
| Receiver Standby Current | ≤10uA |
10. Кепилдик жана колдоо
For warranty information, technical support, or service inquiries, please refer to the product packaging or contact NOYAFA customer service directly. Keep your purchase receipt as proof of purchase.