As far as the construction industry is concerned, the thickness of the paint sprayed on the surface of the material is a very critical factor. So what tool is used to measure? Now there is an instrument that specifically measures the thickness of the paint layer, called a paint thickness gauge.
According to different probe types, the paint thickness gauge adopts two thickness measurement methods: magnetic method and eddy current method. The F-type probe adopts the magnetic method to measure the thickness of the non-magnetic covering layer on the magnetic metal substrate. The N-type probe adopts the eddy current method to measure the thickness of the non-conductive coating on the non-ferromagnetic metal matrix and austenitic stainless steel.
1. Before using the paint thickness gauge, prepare the workpiece to be tested.
2. Turn on the power and insert the probe into the probe socket of the host.
3. Turn on the digital paint thickness gauge to determine whether the instrument needs to be calibrated, and if necessary, select an appropriate calibration method for calibration.
4. Start to work and measure after powering on. Put the probe in vertical contact with the test surface of the workpiece, and lightly press the probe loading sleeve. When the probe is in stable contact with the measured surface, with a beep, the screen will display the measurement mark and the measurement value.
5. The paint thickness gauge should be calibrated before measurement. If proper calibration has been carried out, the measured value of the paint thickness gauge will remain within a certain error range.
6. Test several times when measuring. According to statistics, one reading is unreliable. Therefore, any measurement value of the instrument is the average of five "invisible" measurements. To make the measurement more accurate, you can measure multiple times at one point, and calculate the average value as the measurement result.
7. After the measurement is over, the paint thickness gauge will display the measurement result. The probe must be lifted to a distance of more than 10mm from the workpiece before the next measurement can be performed.