




In appearance, Deguang Electronics DC-2020C Ultrasonic Thickness Measuring Instrument is a black plastic shell with a liquid crystal display, a USB interface and a probe socket, and the keyboard has six keys (including: power switch key \ return key or exit key (in the menu) ); Menu key\Enter key (in the menu); Backlight key\Up key (in the menu); Zero calibration key\Down key (in the menu); Storage key; Read key ).
Functionally, DC-2020C Ultrasonic Thickness Measuring Instrument can not only directly measure the thickness of the material under test, but also reversely measure the thickness value of the material under test through the speed of sound. DC-2020C ultrasonic Thickness Gauge is a non-penetrating ultrasonic Thickness Gauge.
1. DC-2020C Ultrasonic Thickness Measuring Instrument uses a liquid crystal display to check the thickness measurement data in real time.
2. You can choose one of 1 minute, 3 minutes, and 5 minutes to set the automatic shutdown.
3. Four measurement methods: average measurement, limit measurement, minimum measurement, differential measurement.
4. The function of sound velocity measurement is powerful, and functions such as material selection, sound velocity input, sound velocity measurement, and sound velocity storage can be selected.
5. DC-2020C ultrasonic thickness measuring instrument is an intelligent thickness measuring instrument with a storage function of 5000 sets of measurement data.
6. High indication accuracy: 0.01mm.
In actual measurement, the DC-2020C Ultrasonic Thickness Meter after automatic calibration will produce a small measurement deviation with the change of time and environment. Using the calibration function of the DC-2020C Ultrasonic Thickness Meter can eliminate this deviation at any time. The steps are as follows:
①Wipe the surface of the probe clean without leaving any couplant
②Press the down key, select "Probe Calibration" and enter the measurement state after automatic zero calibration.
①When measuring, only when the measurement indicator appears and is stable, it is a good measurement.
②If there is a large amount of couplant on the surface of the measured body, when the probe leaves the surface of the measured body, the couplant will cause mismeasurement. Therefore, when the measurement is over, the probe should be moved away from the surface of the measured body quickly.
③ If the probe is worn, the measurement will show unstable value, and the probe should be replaced.
④ When using ordinary probes, it should be remembered that the temperature of the workpiece to be measured should not be higher than 60°C, otherwise the probe is easily damaged.



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杨琳 - 《浅谈涂层测厚仪工作原理与常见故障》
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