دليل مستخدم جهاز فلوك 77-4 متعدد القياسات الرقمي الصناعي 1000 فولت CAT III ذو النطاق التلقائي واليدوي

1. علىview

The Fluke 77-4 Digital Multimeter is a robust and reliable tool designed for industrial electrical troubleshooting. It offers essential measurement capabilities with enhanced safety features, including a CAT III 1000V rating. This manual provides instructions for safe and effective use, setup, operation, and maintenance of your Fluke 77-4 multimeter.

2. معلومات السلامة

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

• Rated for CAT III 1000V: This multimeter is designed for measurements in distribution-level electrical installations, including main feeders and branch circuits. Do not exceed the specified voltagتقييمات البريد.
• Inspect Test Leads: Before each use, inspect test leads for damaged insulation or exposed metal. Replace damaged leads immediately.
• لا تعمل في الظروف الرطبة: Avoid using the multimeter in damp أو البيئات الرطبة.
• Use Proper Terminals: Always connect test leads to the correct input terminals for the desired measurement.
• فحص الصمامات: Ensure fuses are correctly rated and installed before measuring current.
• Isolate Power: Whenever possible, de-energize circuits before making connections.

3. مواصفات المنتج

The Fluke 77-4 Multimeter includes the following key features:

• شاشة رقمية كبيرة: يوفر نتائج قياس واضحة وسهلة القراءة.
• عرض الخلفية: يحسّن الرؤية في البيئات ذات الإضاءة الخافتة.
• Min/Max Recording: Captures minimum and maximum readings to detect signal fluctuations.
• النطاق التلقائي واليدوي: Allows for automatic range selection or manual override for specific measurement needs.
• حجم واسعtagنطاق القياس الإلكتروني: Capable of measuring DC Voltage from 6V to 1000V and AC Voltage from 600mV to 1000V.
• الصف الصناعية: Designed for demanding industrial applications.
• بناء متين: Manufactured in Taiwan for reliable performance.

4. المكونات والضوابط

Familiarize yourself with the various parts of your Fluke 77-4 Multimeter:

الشكل 1: الجبهة view of the Fluke 77-4 Digital Multimeter.

تعرض هذه الصورة الواجهة الأمامية view of the Fluke 77-4 Digital Multimeter. The large green backlit LCD shows '1000 V AC' with 'Auto Range' indicated below. Below the display are buttons for HOLD, MINMAX, and RANGE. The central rotary dial is set to the AC Voltage (V~) position. Input jacks for 400mA, 10A, VΩHz, and COM are visible at the bottom.

1. عرض: Large LCD for showing measurement values, units, and function indicators.
2. زر الإضاءة الخلفية: يقوم بتنشيط أو تعطيل الإضاءة الخلفية للشاشة.
3. زر الأنتظار: يقوم بتجميد قراءة الشاشة الحالية.
4. MINMAX Button: Records the minimum, maximum, and average readings over time.
5. زر النطاق: Toggles between auto-ranging and manual ranging modes.
6. قرص الوظائف الدوار: Selects the desired measurement function (e.g., V AC, V DC, Ohms, Ampس).
7. مقابس الإدخال:
   • فولتا هرتز: مدخلات إيجابية للحجمtagهـ، قياسات المقاومة والتردد.
   • مللي أمبير: إدخال بالملليampقياسات التيار الكهربائي (المنصهرة).
   • 10أ: Input for high current measurements up to 10 Amperes (fused).
   • كوم: مدخل مشترك (سلبي) لجميع القياسات.

5. الإعداد

5.1. تركيب البطارية

The Fluke 77-4 is powered by a 9V battery. To install or replace the battery:

1. تأكد من إيقاف تشغيل جهاز القياس المتعدد.
2. Locate the battery compartment cover on the rear of the multimeter.
3. استخدم مفك البراغي لفك البراغي التي تثبت الغطاء.
4. Remove the cover and insert a new 9V battery, observing correct polarity.
5. Replace the cover and tighten the screw(s).

5.2. توصيل أسلاك الاختبار

Always connect the black test lead to the COM jack. Connect the red test lead to the appropriate input jack for your measurement:

• فولتا هرتز: للمجلدtage, resistance, continuity, diode, and frequency measurements.
• مللي أمبير: لقياسات التيار حتى 400 مللي أمبير.
• 10أ: For current measurements up to 10A.

6. تعليمات التشغيل

Before taking any measurement, ensure the test leads are correctly connected and the function dial is set to the appropriate position.

6.1. قياس جهد التيار المتردد/المستمرtage

1. Turn the rotary dial to V~ (AC Voltage) or V (DC Voltagهـ).
2. قم بتوصيل سلك الاختبار الأسود بمقبس COM وسلك الاختبار الأحمر بمقبس VΩHz.
3. Touch the test probes to the circuit points where voltage يجب قياسه.
4. اقرأ المجلدtagقيمة البريد على الشاشة.

6.2. قياس المقاومة (أوم)

1. تأكد من فصل التيار الكهربائي عن الدائرة قبل قياس المقاومة.
2. Turn the rotary dial to Ω.
3. قم بتوصيل سلك الاختبار الأسود بمقبس COM وسلك الاختبار الأحمر بمقبس VΩHz.
4. Touch the test probes across the component or circuit segment.
5. اقرأ قيمة المقاومة على الشاشة.

6.3. Measuring Current (Ampإيريس)

حذر: Current measurements require breaking the circuit and inserting the multimeter in series. Incorrect connection can blow the fuse or damage the meter.

1. إلغاء تنشيط الدائرة.
2. Determine the expected current range. For currents up to 400mA, turn the dial to mA and connect the red lead to the mA jack. For currents up to 10A, turn the dial to A and connect the red lead to the 10A jack.
3. قم بتوصيل سلك الاختبار الأسود بمقبس COM.
4. Break the circuit and connect the test probes in series with the load.
5. Re-energize the circuit and read the current value.
6. De-energize the circuit before disconnecting the multimeter.

6.4. Using HOLD, MINMAX, and RANGE Functions

• معلق: اضغط على زر التثبيت لتثبيت القراءة الحالية على الشاشة. اضغط مرة أخرى لتحريره.
• MINMAX: Press the MINMAX button to activate recording. The meter will display the maximum, minimum, and average readings sequentially. Press again to cycle through Min, Max, Avg. Hold the button to exit.
• RANGE: In auto-ranging modes, the meter automatically selects the best range. Press RANGE to switch to manual ranging. Each subsequent press will cycle through available ranges. Hold the button to return to auto-ranging.

7. الصيانة

7.1. التنظيف

امسح الحالة بالإعلانamp cloth and mild detergent. Do not use abrasives or solvents. Ensure the multimeter is dry before use.

7.2. استبدال البطارية

Refer to Section 5.1 for battery installation instructions. Replace the battery when the low battery indicator appears on the display.

7.3. استبدال الصمامات

If the multimeter fails to measure current, the fuse may be blown. Refer to the multimeter's internal diagram or contact Fluke support for correct fuse specifications and replacement procedures. Always use fuses with the specified voltagه والتقييمات الحالية.

8. استكشاف الأخطاء وإصلاحها

9. المواصفات

10. معلومات الضمان

Specific warranty terms for the Fluke 77-4 Digital Multimeter are typically provided with the product at the time of purchase or can be found on the official Fluke website. Please refer to your product documentation or the manufacturer's website for detailed warranty coverage and registration information.

11. دعم العملاء

For technical assistance, service, or repair, please contact Fluke customer support. You can find contact information and additional resources on the official Fluke website. When contacting support, please have your product model number (77-4) and serial number (if applicable) ready.

حظ Webموقع: www.fluke.com