MikroTest Magnetic Coating Thickness Gauges

Product Information

Made in GERMANY

Application:

The MikroTest is the most widely used coating thickness gauge in the world over the last 40 years. The MikroTest complies with the highest technical standards of all analogue magnetic coating thickness gauges. This magnetic coating thickness gauge works on the magnetic attraction principle to measure all non-magnetic coatings on steel and galvanic nickel on steel.

The MikroTest is supplied in 11 different models to be suitable for every requested application. The balanced measuring system ensures accurate readings at any angle: horizontal, vertical and overhead. Also, the gauge allows measurements on curved surfaces. It is also able to provide you with precise measurements in tubes and on round parts due to the automatic operation.

The measurement of the coating thickness is based on magnetic attraction. The attractive force is related to the distance between a permanent magnet and a steel substrate. This distance represents the thickness of the coating under measure. The magnet is lifted from the surface by means of a spring connected to the magnet arm. The force needed to lift the magnet is directly related to the angle of rotation of the torsion spring. This measuring principle is also especially suited for electroplated nickel on copper, aluminum and other non-ferrous metals. This measurement principle ensures fully automatic measurement where no power supply or calibration is required.

Features:

Mils Models Include a NIST traceable calibration certificate, Micron Models include factory "works" certificate

Highest accuracy with simplest operation

No calibration required

Simple set-up and measurement

All gauges operate without power or battery

One point measurement

Metal Housing provides protection from mechanical shocks

Metal Housing and measuring system is resistant to solvents

Automatic models control realease of magnet for highest accuracy and repeatability

Specifications:

Type	Range	Typical Application	Tolerance	Min Surface	Min Radius	Min Base Thickness
GM G	4mils 100micron	Electroplating and Paint on Steel	±1μm or 5% of reading	Ø20mm	5 mm convex/ 25mm concave	0.5mm
FM F	40mils 1000micron	Paint On Steel	±5μm or 5% of reading	Ø30mm	mm convex/ 25mm concave	0.5mm
S3M S3	8-120mils 0.2-3mm	Enamel, Paint on Steel	5% of reading	Ø30mm	15 mm convex/ 25mm concave	1.0mm
S5M S5	20-200mils 0.5-5mm	Enamel, Paint on Steel	5% of reading	Ø50mm	15 mm convex/ 25mm concave	1.0mm
S10M S10	0.1-0.4inches 2.5-10mm	Enamel, Paint on Steel	5% of reading	Ø50mm	15 mm convex/ 25mm concave	2.0mm
S20M S20	0.3-0.8inches 7.5-20mm	Enamel, Paint on Steel	5% of reading	Ø100mm	100 mm convex/ 150mm concave	7.0mm
Ni50M Ni50	2mils 50 micron	Electroplated Nickel on Non-Ferrous	±(1μm+5% of reading)	Ø15mm	5 mm convex/ 25mm concave	-
Ni100M Ni100	4 mils 100micron	Electroplated Nickel on Non-Ferrous	±(1μm+5% of reading)	Ø15mm	5 mm convex/ 25mm concave	-
NiFe50M NiFe50	2mils 50micron	Electroplated Nickel on Steel	±(2μm+8% of reading)	Ø20mm	10 mm convex/ 25mm concave	0.5mm

Ambient Temperature	-20°C-100°C
Conforming Standards	DIN EN ISO 2178, DIN 50 982, ASTM B 499, E 376, D 1186, G 12, B 530, BS 5411, ISO 2361
Dimensions	Gauge: 215mmx55mmx29mm Plastic carrying case: 235mmx185mmx46mm
Weight	Case incl. gauge approx. 560g
Calibration Shims	Here are the two technical reasons why you cannot use plastic shims/foils plus zero plate to check calibration of MikroTest: 1. All Plastic Shims/Foils have a certain prestress which has the effect that they are slightly bent when the magnet lifts off and this effect is similar to the effect of a spring will cause inaccurate readings 2. The Plastic Shims/Foils have a certain electrostatic charge which also causes inaccurate readings.