1. المقدمة
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. معلومات السلامة
Always prioritize safety when working with electrical systems. Failure to follow these safety guidelines may result in electric shock, fire, or personal injury.
- قراءة وفهم جميع التعليمات قبل استخدام الجهاز.
- لا تستخدم الجهاز إذا بدا تالفًا أو لا يعمل بشكل صحيح.
- 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.
- لا تحاول فتح الجهاز أو تعديله. أحل جميع أعمال الصيانة إلى فنيين مؤهلين.
- احفظ الجهاز بعيدًا عن الماء والرطوبة.
- 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. محتويات العبوة
تأكد من وجود جميع العناصر في الحزمة الخاصة بك:
- 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 كابل شحن من النوع C
- 1 × دليل المستخدم
- 1 × حقيبة حمل

Figure 1: Complete accessory kit and carrying case for the NF-824.
4. انتهى المنتجview
4.1. Transmitter (Outlet Tester)
- Test Plug: Connects to standard electrical outlets.
- Master Control Screen: شاشة LCD تظهر مستوى الصوتtage, wiring status, and GFCI trip time.
- زر الطاقة: يقوم بتشغيل / إيقاف تشغيل جهاز الإرسال.
- زر الأنتظار: يقوم بتجميد قراءة الشاشة الحالية.
- زر GFCI: Initiates a GFCI test.
- مؤشر الحالة LED: Red/Green light indicating wiring faults.
- منفذ شحن من النوع C: لإعادة شحن البطارية الداخلية.

Figure 2: Transmitter (Outlet Tester) in use, showing correct wiring and voltage.
4.2. Receiver (Breaker Finder)
- ضوء مؤشر NCV: Flashes when non-contact voltagتم الكشف عن ذلك.
- Master Control Screen: LCD display showing signal strength and NCV status.
- تبديل الحساسية: Adjusts the detection level (7 levels).
- زر الطاقة: يقوم بتشغيل/إيقاف جهاز الاستقبال.
- ضوء LED: Built-in flashlight for dark environments.
- منفذ شحن من النوع C: لإعادة شحن البطارية الداخلية.

Figure 3: Receiver scanning a circuit breaker panel.
5. الإعداد
5.1. الشحن الأولي
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. تعليمات التشغيل
6.1. Circuit Breaker Finding
- قم بتوصيل جهاز الإرسال: 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.
- Activate the Receiver: Press and hold the power button on the receiver for a few seconds to turn it on. The receiver will enter "SCAN" mode.
- ضبط الحساسية: 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.
- مسح لوحة القاطع: Slowly move the tip of the receiver along the circuit breakers in the electrical panel. Maintain a consistent speed and distance from each breaker.
- تحديد القاطع: 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.
- يؤكد: 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
- قم بتوصيل جهاز الإرسال: 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.
- إعادة ضبط قاطع التيار الأرضي (GFCI): 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. مجلد عدم الاتصالtagاختبار (NCV)
- 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.
- كشف المجلدtage: إذا كان 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:
- الأسلاك الصحيحة
- ارض مفتوحة
- فتح محايد
- فتح ساخن
- ساخن / محايد معكوس
- الساخنة / انعكاس الأرض

Figure 7: Transmitter displaying different wiring fault conditions.
7. الصيانة
- تنظيف: امسح الجهاز بقطعة قماش جافة وناعمة. لا تستخدم منظفات أو مذيبات كاشطة.
- تخزين: Store the device in its carrying case in a cool, dry place when not in use.
- العناية بالبطارية: Recharge the batteries regularly, even if the device is not used frequently, to maintain battery health.
- تقتيش: Periodically inspect the device and accessories for any signs of damage.
8. استكشاف الأخطاء وإصلاحها
- No Power on Device: تأكد من شحن الجهاز بالكامل. اضغط مع الاستمرار على زر التشغيل لبضع ثوانٍ.
- تحديد قاطع الدائرة غير دقيق:
- 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 لا يكتشف مستوى الصوتtage:
- Ensure the receiver is powered on and in NCV mode.
- Verify that the circuit is live.
- Adjust sensitivity if necessary.
9. المواصفات
| ميزة | مواصفة |
|---|---|
| رقم الموديل | NF-824 |
| منفذ الشحن | نوع C USB (5 فولت) |
| السيارات خارج | 30 دقيقة |
| تنبيه منخفضة الطاقة | نعم |
| Outlet Tester Screen | Segment Code LCD |
| Outlet Tester Plug Type | CN, US, EU |
| Outlet Tester Battery | 3.7V 390mAh ليثيوم |
| Outlet Tester Max Operating Current | <50 مللي أمبير |
| Outlet Tester Charging Current | 500 مللي أمبير |
| Outlet Tester Standby Current | ≤10 ميكرو أمبير |
| Receiver Product Size | 60×38.5×132.5 ملم |
| شاشة جهاز الاستقبال | Segment Code LCD |
| ضبط حساسية جهاز الاستقبال | 7 مستويات |
| Receiver NCV Range | ≥ AC 90 V |
| مؤشر قوة إشارة جهاز الاستقبال | 7 تروس |
| ضوء LED لجهاز الاستقبال | نعم |
| بطارية جهاز الاستقبال | 3.7V 700mAh ليثيوم |
| Receiver Max Operating Current | <100 مللي أمبير |
| Receiver Charging Current | 700 مللي أمبير |
| Receiver Standby Current | ≤10 ميكرو أمبير |
10. الضمان والدعم
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.





