measuring principle

518The S paint film inspection instrument conforms to the standard wedge cutting method, in which case the sample is cut at a specified angle

Cutting. The thickness of the coating can be calculated using simple geometric relationships by projecting the width of the cutting surface.518S controls the damage of the coating to a very small conical hole. In a measuring microscope, a series of concentric circles can be seen. The diameter difference of the concentric circles that can be measured using a measuring microscope can be multiplied by a known coefficient to calculate the film thickness.

Measuring instrument

518SThe paint film inspection instrument is a compact device. All important components, drilling tools, measuring microscopes, sample lighting, and batteries are installed in a sturdy small box. A movable drill bit and microscope in a horizontal groove box518SHaving unique features: the instrument does not require movement for measurement after drilling. The drill bit is elastically installed in the groove, so that it can be pressed onto the sample with the least force, and then the drill bit will automatically start. Carbide drill bits are easy to replace and can provide high-precision cutting angles to meet different requirements4A standard measurement range. The magnification of the measuring microscope is50There are measurement scales available100Line, so each measurement range can obtain one1%The resolution. The lighting switch is located518On the panel of the S paint film inspection instrument, continuous or intermittent lighting can be set to extend battery life. We are using one9VRechargeable batteries and chargers can also be used as substitutes. (Mutual 90)°）The microscope can move on two axes and the scale can be rotated, so518-SSpecially suitable for evaluating elliptical holes in curved surface samples.

Operation method

use518The S paint film tester measures coating thickness very simply: make a comparison mark with a marker pen, place the instrument on the surface of the sample, move the drill bit above the testing point and lower it to turn on the motor. Drill through the coating until it reaches the substrate. Move the microscope to the top of the hole, turn on the light, read the scale number between the substrate and the comparison mark, and multiply it by a scale factor to obtain the measurement

result. Special applications(Measurement of single coating and curved surface samples in multi-layer coating systems)Please refer to the operating manual.

technical data

measurement accuracy 1%

Rechargeable battery 6F 22 (6LR 61)

size(Length x Width x Height)145×55×110 mm

Net weight 850 g

Zui small sample size

Without sample stand150×25 mm

With sample stand10×6 mm