Measuring principle

518S film tester conforms to the standard wedge cutting method, in which case the template is treated at a specified angle

The thickness of the coating can be calculated by using a simple geometric relationship through the projected width of the cutting surface. 518The control of the coating is controlled as a very small conical hole. In the measuring microscope, a series of concentric circles are visible, using a measuring microscope to measure the difference in the diameter of the concentric circle, multiplied by a known coefficient Calculate the film thickness.

measuring instrument

518SAll of the important components, drilling tools, measuring microscopes, sample lighting and batteries are housed in a sturdy little box. A drill bit and microscope can be moved in the horizontal chute box 518SThe drill bit is resiliently mounted in the chute so that it can be pressed against the sample with minimal force and the drill bit is automatically activated. Can provide high-precision cutting angle to meet the different 4The measurement magnification of the measuring microscope is 50, Measurement scale there 100Line, so each measurement range can get one 1%Of the resolution 518S film tester can be set to continuous or intermittent lighting to extend battery life. 9VRechargeable batteries, chargers can also be used as substitutes 90°) Microscope available 2Axis, and the scale can be rotated 518-SIt is particularly useful for evaluating elliptical holes in curved surfaces.

Operation method

use 518S Coating Thickness Measurement is very simple: use the marker to make a comparison mark, place the instrument on the sample surface, move the drill above the test point and lower the motor to open. Move the microscope to the top of the hole, turn on the lamp, read the number of ticks between the substrate and the comparison mark, and multiply by a scale factor to get the measurement

Special Applications (Single coating of a multi-layer coating system, measurement of curved samples )Please refer to the operating instructions.

Technical data

measurement accuracy1%

rechargeable battery 6F 22 (6LR 61)

size (Length × width × height )145Respectively55Respectively110 mm

net weight850 g

Minimum sample size

Without sample stage 150Respectively25 mm

With the sample stage 10Respectively6 mm