Product Overview
The Qili UT400 ultrasonic thickness gauge employs the pulse reflection ultrasonic principle, specifically designed for measuring the thickness of various materials that can conduct ultrasonic waves, such as metals, plastics, ceramics, and glass. The instrument utilizes a professional timing chip with a resolution of up to 0.001 mm. Simply place the probe on one side of the object to quickly measure its thickness, making it suitable for various fields including industrial manufacturing and quality inspection. It is a reliable partner for thickness measurement.
Product Features
1. Compact and Aesthetic: The streamlined body ensures comfortable grip and prevents slipping.
2. Measurement Accuracy: Equipped with a professional timing chip, it offers a high resolution of up to 0.001mm.
3. Gain Switching on Demand: Users can select the appropriate gain based on material type and thickness, enabling measurement of multiple materials with one device.
4. Ultra-Wide Measurement Range: Capable of measuring from 0.8mm to 800mm, delivering fast and precise results.
5. QC Judgment Function: Determines whether the tested object is qualified based on preset upper and lower limits, enabling rapid quality inspection.
6. Statistical Function: Automatically calculates the maximum, minimum, and average values of measurements, making data clear and easy to understand.
Working principle
Ultrasonic thickness gauges measure thickness using the pulse-echo ultrasonic principle.
Application Fields
Industrial manufacturing, quality inspection
Complies with standard
JJF1126-2004 Calibration Specification for Ultrasonic Thickness Gauges
Operating Steps
1. Power On/Off: Press and hold the OK button to power on or off, or turn off via the menu bar; the instrument will automatically shut down after reaching the set time of inactivity.
2. Baseline Calibration: After powering on, enter the baseline calibration interface. Follow the animated prompts to operate or skip; calibration is recommended if the instrument has not been used for an extended period.
3. Measurement: Apply couplant to the surface of the material being measured. Press the probe firmly against the surface with couplant and keep it still to measure the thickness; a prompt will appear on the screen when coupling is good.
4. Settings and Calibration: In the powered-on state, briefly press the OK button to enter [System Settings]. Use the directional keys to switch between [System Settings/Sound Speed Settings/Baseline Calibration/Power Off], and briefly press the OK button to confirm.
5. Aviation Plug Connection: When inserting or removing the probe's aviation plug, note that it has a spring lock mechanism. Do not forcibly rotate or pull it.
Precautions
• Sound velocity is a critical parameter; only with correct settings can valid thickness values be obtained. It is recommended to use materials of known thickness and the same type as the object under test to set the sound velocity.
• The probe should be positioned at the center of the measurement point, and its periphery should not overhang outside the surface being measured.
• The opposite surface of the material being measured must be parallel or coaxial to the measured surface. For coarse-grained materials such as cast iron, significant ultrasonic scattering may occur. If abnormal values appear, it indicates that the material is not suitable for measurement with this instrument.
• The probe is prone to scratches on rough surfaces, so minimize sliding on such surfaces. Replace the probe promptly if it is severely worn.
• When the instrument operates for extended periods, it is recommended to perform baseline calibration to avoid the influence of external environmental factors.
• After use, clean the probe and standard test block to prevent corrosion.
