دليل مستخدم مقياس سرعة الدوران الرقمي المحمول باليد - DT-48

1. المقدمة

This manual provides comprehensive instructions for the safe and effective operation of your DigiTech Handheld Digital Tachometer, model DT-48. This device is designed for non-contact measurement of rotational speed (RPM) and total revolutions, offering high accuracy and ease of use for various applications.

Figure 1: DigiTech Handheld Digital Tachometer DT-48. This image displays the front of the tachometer, highlighting its five-digit LCD screen, the 'RPM/TOT' button for mode selection, and the 'MEM' button for memory functions. A laser warning symbol is visible at the top, indicating the laser emission point.

2. معلومات السلامة

Please read all safety warnings and instructions carefully before using this product. Failure to follow these instructions may result in injury or damage to the device.

• سلامة الليزر: This device emits a Class II laser. Do not stare directly into the laser beam or direct it at other people's eyes. Avoid prolonged exposure.
• معالجة البطارية: Use only the specified battery type (4 AA batteries). Do not mix old and new batteries, or different types of batteries. Dispose of batteries according to local regulations.
• الظروف البيئية: Do not expose the device to extreme temperatures, humidity, or direct sunlight. Avoid dropping the device or subjecting it to strong impacts.
• صيانة: لا تحاول تفكيك الجهاز أو تعديله. أحل جميع أعمال الصيانة إلى فنيين مؤهلين.

3. مواصفات المنتج

The DigiTech DT-48 Handheld Digital Tachometer offers the following key features:

• Large, five-digit LCD screen for clear display of measurements.
• Ability to measure actual Revolutions Per Minute (RPM) or total revolutions.
• Equipped with a laser pointer for accurate targeting of the measurement point.
• Low-battery indicator to alert users when battery replacement is needed.
• Automatic storage of the last measurement, along with maximum and minimum readings.
• Comes with a protective carrying case for portability and storage.

4. الإعداد

4.1 تركيب البطارية

1. Locate the battery compartment cover on the rear of the tachometer.
2. قم بسحب الغطاء أو فكه لفتح الحجرة.
3. قم بإدخال 4 بطاريات AA، مع التأكد من القطبية الصحيحة (+/-) كما هو موضح داخل الحجرة.
4. أعد تركيب غطاء حجرة البطارية بشكل آمن.

4.2 Preparing the Target Surface

For accurate non-contact measurement, a reflective target must be applied to the rotating object. If the object's surface is already reflective, no additional target may be needed. Otherwise, attach a small piece of reflective tape (not included) to the rotating part where the laser beam will be directed.

5. تعليمات التشغيل

5.1 تشغيل/إيقاف التشغيل

Press the power button (usually located on the side or front) to turn the tachometer on. The LCD display will illuminate. Press and hold the power button again to turn the device off.

5.2 Selecting Measurement Mode (RPM / Total Revolutions)

The tachometer can measure either Revolutions Per Minute (RPM) or Total Revolutions. Press the 'RPM/TOT' button to toggle between these two modes. The selected mode will be indicated on the LCD display.

5.3 أخذ القياس

1. Ensure the tachometer is powered on and the desired measurement mode is selected.
2. Point the laser beam at the reflective target on the rotating object. Maintain a detecting distance between 50mm and 500mm.
3. Press and hold the measurement trigger button (often located on the side or front). The laser will activate, and the display will show the real-time measurement.
4. Release the measurement trigger button to hold the last reading on the display.

5.4 وظيفة الذاكرة

The tachometer automatically stores the last measurement, as well as the maximum and minimum measurements recorded during a measurement session.

• Press the 'MEM' button to cycle through the stored values: Last Reading, Maximum Reading, and Minimum Reading.
• To clear the memory, refer to the specific instructions in the device's full manual if available, or typically, turning the device off and on will clear the session memory.

6. الصيانة

6.1 التنظيف

Wipe the device with a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the device in water. Keep the laser emission and reception lenses clean for accurate readings.

6.2 التخزين

When not in use for extended periods, remove the batteries to prevent leakage. Store the tachometer in its carrying case in a cool, dry place, away from direct sunlight and extreme temperatures.

7. استكشاف الأخطاء وإصلاحها

8. المواصفات

9. الضمان والدعم

للحصول على معلومات الضمان والدعم الفني، يرجى الرجوع إلى الوثائق المرفقة وقت الشراء أو الاتصال بالبائع. احتفظ بإيصال الشراء كإثبات للشراء.