REED Instruments TM-8811-NIST Ultrasonic Thickness Gauge User Manual

1. المقدمة

This manual provides comprehensive instructions for the safe and effective operation, maintenance, and troubleshooting of the REED Instruments TM-8811-NIST Ultrasonic Thickness Gauge. This device is designed for precise measurement of material thickness using ultrasonic technology. Please read this manual thoroughly before using the instrument.

2. معلومات السلامة

Observe the following safety precautions to prevent injury and avoid damage to the instrument:

• Do not operate the gauge in explosive atmospheres.
• Ensure proper coupling between the probe and the test material for accurate readings.
• Avoid dropping the instrument or subjecting it to severe impact.
• Do not attempt to disassemble or repair the instrument yourself. Refer to qualified service personnel.
• Keep the instrument dry and clean.
• استخدم فقط نوع البطارية المحدد.

3. انتهى المنتجview

The REED Instruments TM-8811-NIST is an ultrasonic thickness gauge designed for quick and accurate measurements. It features a large LCD display and intuitive controls.

الشكل 1: REED Instruments TM-8811-NIST Ultrasonic Thickness Gauge and a sample calibration certificate.

This image displays the REED Instruments TM-8811-NIST Ultrasonic Thickness Gauge, a blue handheld device with a digital display showing "0.000". Two probes are connected to the top of the device via cables. Below the display are several control buttons: a red power button (circle with a vertical line), "SELECT", "CAL", "VEL", "mm/inch", and up/down arrow buttons. The text "Ultrasonic Thickness Gauge" and "COUPLING" are visible on the device face. Partially visible in the background is a "CALIBRATION CERTIFICATE" document, indicating the importance of calibration for such instruments.

المكونات الرئيسية:

• شاشة LCD: Shows thickness readings and other operational information.
• Probe Connectors: For attaching the ultrasonic probes.
• زر الطاقة (⑂): يقوم بتشغيل الجهاز أو إيقاف تشغيله.
• حدد زر: Used to navigate menus or confirm selections.
• زر CAL: Initiates or adjusts calibration settings.
• VEL Button: Allows adjustment of the sound velocity for different materials.
• mm/inch Button: Toggles between metric (mm) and imperial (inch) units.
• Up/Down Arrow Buttons: Used for adjusting values or navigating menus.

4. الإعداد

1. تركيب البطارية: Open the battery compartment (typically on the back) and insert the required batteries, observing correct polarity. Close the compartment securely.
2. اتصال التحقيق: Connect the ultrasonic probe(s) to the connectors at the top of the gauge. Ensure a firm connection.
3. تشغيل الطاقة: اضغط على ⑂ Power button to turn on the device. The display will illuminate.

5. تعليمات التشغيل

5.1 القياس الأساسي

1. تحضير السطح: Ensure the surface of the material to be measured is clean, smooth, and free of rust, paint, or debris.
2. Apply Couplant: Apply a small amount of ultrasonic couplant (e.g., glycerin, gel) to the surface where the measurement will be taken. This ensures proper sound transmission.
3. Place Probe: Press the probe firmly and flatly against the prepared surface. The "COUPLING" indicator on the display should appear, confirming good contact.
4. قراءة القياس: The thickness reading will be displayed on the LCD. If the reading is unstable, adjust the probe position or reapply couplant.
5. إزالة المجس: Lift the probe from the surface. The reading will typically hold or return to zero.

5.2 Unit Selection (mm/inch)

اضغط على مم / بوصة button to toggle between millimeters (mm) and inches (inch) for the displayed thickness measurement.

5.3 Sound Velocity Adjustment

The accuracy of ultrasonic thickness measurement depends on the correct sound velocity setting for the material being tested. Refer to a material velocity chart for common materials.

1. اضغط على فيل button. The current sound velocity value will be displayed.
2. استخدم Up و تحت arrow buttons to adjust the velocity to the desired value for your material.
3. يضعط فيل مرة أخرى أو يختار to confirm and exit velocity adjustment mode.

6. المعايرة

The TM-8811-NIST gauge is factory calibrated. However, periodic calibration checks and adjustments are crucial for maintaining measurement accuracy, especially when measuring different materials or after prolonged use. The device may feature a built-in calibration block or require external reference standards.

6.1 المعايرة الصفرية

Zero calibration compensates for the probe delay line. This is typically performed by placing the probe on a known thickness standard or by coupling the probe to itself (if applicable to the probe type).

1. Ensure the probe is clean and free of couplant.
2. اضغط على كال اضغط على الزر. اتبع التعليمات التي تظهر على الشاشة.
3. Place the probe on the zero calibration block or perform the specified zeroing procedure.
4. تأكيد المعايرة.

6.2 المعايرة ثنائية النقاط

For enhanced accuracy, especially over a range of thicknesses, a two-point calibration using two known thickness standards (e.g., thin and thick) is recommended.

1. اضغط على كال button and select the two-point calibration option.
2. Measure the first known thickness standard and input its value using the arrow buttons.
3. Measure the second known thickness standard and input its value.
4. تأكيد المعايرة.

Always refer to the specific instructions in the device's internal menu for detailed calibration procedures.

7. الصيانة

• تنظيف: Wipe the instrument and probes with a soft, dry cloth after each use. Do not use abrasive cleaners or solvents.
• تخزين: Store the gauge in its protective case in a cool, dry place when not in use. Remove batteries if storing for extended periods to prevent leakage.
• استبدال البطارية: استبدل البطاريات عند ظهور مؤشر انخفاض مستوى البطارية على الشاشة.
• العناية بالمسبار: Inspect probes regularly for wear or damage. Replace damaged probes to ensure accurate measurements.

8. استكشاف الأخطاء وإصلاحها

9. المواصفات

• نموذج: TM-8811-NIST
• ماركة: أدوات ريد
• نطاق القياس: Up to 7.9" (200mm)
• عرض: شاشة LCD كبيرة
• دقة: دقة عالية
• الوحدات: Millimeters (mm) / Inches (inch)
• مصدر الطاقة: (Typically batteries, specific type not provided, so keep general)
• وزن السلعة: 1 رطل

10. الضمان والدعم

REED Instruments products are designed for reliability and performance. For information regarding warranty coverage, technical support, or service, please refer to the official REED Instruments webالموقع الإلكتروني أو تواصل مع قسم خدمة العملاء. احتفظ بإيصال الشراء كإثبات للشراء في حال وجود أي مطالبات بالضمان.

الشركة المصنعة: أدوات ريد

تاريخ التوفر الأول: 10 يوليو 2017