NJTY T3
NJTY T3 Multimeter Instruction Manual
الموديل: T3
مقدمة
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.
معلومات السلامة
التزم دائمًا بإجراءات السلامة عند استخدام أي جهاز اختبار كهربائي. قد يؤدي عدم الالتزام بذلك إلى الإصابة أو تلف الجهاز.
- لا تتجاوز قيم الإدخال القصوى المحددة لكل دالة.
- تأكد من أن أسلاك الاختبار في حالة جيدة وموصولة بشكل صحيح قبل إجراء القياسات.
- توخ الحذر عند العمل مع المجلدtagيجب ألا تتجاوز البطاريات 30 فولت تيار متردد جذر متوسط التربيع، أو 42 فولت ذروة، أو 60 فولت تيار مستمر، لأنها تشكل خطر صدمة كهربائية.
- لا تقم بتشغيل جهاز القياس المتعدد إذا بدا تالفًا أو إذا كان غلافه مفتوحًا.
- افصل الطاقة دائمًا عن الدائرة قيد الاختبار قبل قياس المقاومة أو الاستمرارية.
- استخدم مستوى الصوت غير التلامسيtage (NCV) function as an initial check, but always verify with direct contact measurements when safety is critical.
محتويات الحزمة
تأكد من وجود جميع العناصر في العبوة:
- NJTY T3 Multimeter (1 unit)
- أسلاك اختبار (زوج واحد، أحمر وأسود)
- كابل شحن من النوع C (وحدة واحدة)
- دليل التعليمات (وحدة واحدة)
يثبت
1. الشحن الأولي
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.
- Connect the Type-C end of the charging cable to the multimeter's charging port.
- Connect the USB-A end of the charging cable to a standard USB power adapter (not included) or a computer's USB port.
- 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. توصيل أسلاك الاختبار
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.
تعليمات التشغيل
The NJTY T3 Multimeter features an auto-ranging function, simplifying operation by automatically detecting the measurement type and range.
1. تشغيل/إيقاف التشغيل
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 voltagه ، العاصمة المجلدtage, 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 Voltagهـ القياس
- تأكد من تشغيل جهاز القياس المتعدد.
- قم بتوصيل أسلاك الاختبار بنقاط الدائرة حيث يكون الجهدtage needs to be measured. The multimeter will automatically detect AC or DC voltage.
- اقرأ المجلدtagالقيمة الإلكترونية المعروضة على الشاشة.

Image: Two separate images showing the NJTY T3 Multimeter measuring AC voltage from a power strip and DC voltage from a 9V battery.
4. قياس المقاومة
- مهم: تأكد من فصل التيار الكهربائي عن الدائرة قبل قياس المقاومة.
- Connect the test leads across the component or circuit section where resistance is to be measured.
- 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. مجلد عدم الاتصالtagكشف (NCV).
The NCV function allows for safe detection of live wires without direct contact.
- Press the NCV button (if available, or ensure NCV mode is active).
- Bring the NCV sensor at the top of the multimeter close to the wire or outlet.
- 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. Live Wire Testing
تساعد هذه الوظيفة في تحديد الأسلاك الحية في دائرة التيار المتردد.
- Insert the red test probe into the socket or touch it to the wire you want to test.
- 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. اختبار الاستمرارية
- مهم: تأكد من فصل التيار الكهربائي عن الدائرة قبل إجراء اختبار الاستمرارية.
- Connect the test leads across the component or wire to be tested.
- If continuity exists (resistance is low, typically below 50Ω), the multimeter will emit an audible beep.
8. امسك المعلومات
اضغط على زر "التثبيت" لتجميد القراءة الحالية على الشاشة. اضغط عليه مرة أخرى لإلغاء وظيفة التثبيت.
9. مصباح يدوي وإضاءة خلفية
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.
صيانة
1. التنظيف
Wipe the multimeter's case with a damp cloth and mild detergent. Do not use abrasives or solvents. Ensure the device is off and disconnected from any power source before cleaning.
2. العناية بالبطارية
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. التخزين
Store the multimeter in a cool, dry place, away from direct sunlight and extreme temperatures. Disconnect test leads when storing.
استكشاف الأخطاء وإصلاحها
| مشكلة | السبب المحتمل | حل |
|---|---|---|
| No display or device won't turn on. | انخفاض مستوى البطارية أو أن الجهاز مطفأ. | Charge the battery using the Type-C cable. Press and hold the power button to turn on. |
| قراءات غير دقيقة. | Poor test lead connection, incorrect measurement technique, or exceeding input limits. | Ensure test leads are firmly connected. Review operating instructions for correct measurement procedures. Do not exceed specified input ranges. |
| Multimeter automatically shuts off. | Automatic power-off feature activated due to inactivity. | This is normal behavior to conserve battery. Press the power button to turn it back on. |
| NCV detection not working or inconsistent. | Distance to voltage source too far, or interference. | Bring the NCV sensor closer to the suspected live wire. Ensure no other strong electromagnetic fields are present. |
تحديد
| ميزة | التفاصيل |
|---|---|
| عرض | 4000 Counts, 3.19-inch Color LCD |
| المجلد العاصمةtage المدى | 0.8V - 600V (Accuracy: ±(0.8%+5)) |
| المجلد ACtage المدى | 1V - 600V (Accuracy: ±(1.0%+5)) |
| مدى المقاومة | 0 - 40MΩ (Accuracy: ±(1.0%+10)) |
| Minimum Resolution (DCV/ACV) | 0.001 فولت |
| Minimum Resolution (Resistance) | 1 أوم |
| مصدر الطاقة | بطارية ليثيوم أيون قابلة لإعادة الشحن (مرفقة) |
| منفذ الشحن | النوع-C |
| الإغلاق التلقائي | حوالي 15 دقائق من الخمول |
| مصباح يدوي | Yes (1 minute auto shut-off) |
| الإضاءة الخلفية | نعم |
| صفارة | Yes (for continuity, internal resistance less than 50Ω) |
| كشف نكف | نعم |
| RMS الحقيقي | Yes (45Hz-2KHz) |
| مؤشر انخفاض البطارية | نعم |
| تحديد الأسلاك الحية | نعم |
| أبعاد المنتج | 5.51 × 1.18 × 0.79 بوصة |
| وزن العنصر | 150 جرام (5.29 أونصة) |

Image: The NJTY T3 Multimeter demonstrating NCV detection alongside a table detailing its technical specifications.
الضمان والدعم
معلومات الضمان
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.
دعم العملاء
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.
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