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

1. Introducció

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. Informació de seguretat

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.
• Utilitzeu només el tipus de bateria especificat.

3. Producte acabatview

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.

Figura 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.

Components clau:

• Pantalla LCD: Shows thickness readings and other operational information.
• Connectors de sonda: For attaching the ultrasonic probes.
• Botó d'encendre (⑂): Encén o apaga el dispositiu.
• Botó SELECCIÓ: Used to navigate menus or confirm selections.
• Botó 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.
• Botons de fletxa amunt/avall: Used for adjusting values or navigating menus.

4. Configuració

1. Instal·lació de la bateria: Open the battery compartment (typically on the back) and insert the required batteries, observing correct polarity. Close the compartment securely.
2. Connexió de la sonda: Connect the ultrasonic probe(s) to the connectors at the top of the gauge. Ensure a firm connection.
3. Encès: Premeu el botó ⑂ Power button to turn on the device. The display will illuminate.

5. Instruccions de funcionament

5.1 Mesura bàsica

1. Prepara la superfície: 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. Llegir mesura: The thickness reading will be displayed on the LCD. If the reading is unstable, adjust the probe position or reapply couplant.
5. Eliminar la sonda: Lift the probe from the surface. The reading will typically hold or return to zero.

5.2 Unit Selection (mm/inch)

Premeu el botó mm/polzada 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. Premeu el botó VEL button. The current sound velocity value will be displayed.
2. Utilitza el Up i Avall arrow buttons to adjust the velocity to the desired value for your material.
3. Premeu VEL de nou o SELECCIONA to confirm and exit velocity adjustment mode.

6. Calibració

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 Calibració zero

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. Premeu el botó CAL button. Follow the on-screen prompts.
3. Place the probe on the zero calibration block or perform the specified zeroing procedure.
4. Confirmeu el calibratge.

6.2 Calibració de dos punts

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. Premeu el botó CAL 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. Confirmeu el calibratge.

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

7. Manteniment

• Neteja: Wipe the instrument and probes with a soft, dry cloth after each use. Do not use abrasive cleaners or solvents.
• Emmagatzematge: 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.
• Substitució de la bateria: Canvieu les piles quan aparegui l'indicador de bateria baixa a la pantalla.
• Cura de la sonda: Inspect probes regularly for wear or damage. Replace damaged probes to ensure accurate measurements.

8. Solució De Problemes

9. Especificacions

• Model: TM-8811-NIST
• Marca: Instruments REED
• Interval de mesura: Up to 7.9" (200mm)
• Visualització: LCD gran
• Precisió: Alta precisió
• Unitats: Millimeters (mm) / Inches (inch)
• Font d'alimentació: (Typically batteries, specific type not provided, so keep general)
• Pes de l'article: 1 lliures

10. Garantia i Suport

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 weblloc web o poseu-vos en contacte amb el seu departament d'atenció al client. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.

Fabricant: Instruments REED

Data de primera disponibilitat: 10 de juliol de 2017