Coating thickness gauge MikroTest series

coppersteelfor non-ferrous materials

Overview
The MikroTest is a mechanical coating thickness gauge for non-destructive measurement of non-magnetic coatings on ferromagnetic substrates using the magnetic adhesion principle. Its metal housing and battery-free design provide durable, maintenance-light operation for industrial environments.

Applications

• Measurement of non-magnetic coatings such as paints, lacquers, enamel, chrome and zinc on steel.
• Electroplated nickel on steel (model NiFe50).
• Electroplated nickel on non-ferromagnetic substrates (models Ni50, Ni100) such as aluminium, copper or plastics.

Operation types and models
MikroTest 5

• Manual drive: rotate the scale wheel to the forward stop then slowly reverse until the magnet releases from the surface.
• MikroTest 5 G — Measuring range 0–100 µm, for electroplating and paint on steel.
• MikroTest 5 F — Measuring range 0–1,000 µm, for paint on steel.

MikroTest 6

• Automatic spring-drive with built-in latch: turn the wheel to the stop and trigger the automatic measurement sequence.
• MikroTest 6 G — 0–100 µm, for electroplating and paint on steel.
• MikroTest 6 F — 0–1,000 µm, for paint on steel.
• MikroTest 6 S3 — 0.2–3 mm, for enamel, plastics or rubber on steel.
• MikroTest 6 S5 — 0.5–5 mm, for enamel, plastics or rubber on steel.
• MikroTest 6 S10 — 2.5–10 mm, for enamel, plastics, rubber or fire-protection coatings on steel.
• MikroTest 6 S20 — 7.5–20 mm, for thick coatings on steel.
• MikroTest 6 Ni50 — 0–50 µm, electroplated nickel on non-ferromagnetic substrates.
• MikroTest 6 Ni100 — 0–100 µm, electroplated nickel on non-ferromagnetic substrates.
• MikroTest 6 NiFe50 — 0–50 µm, electroplated nickel on ferromagnetic steel substrate.

Measuring principle
Magnetic adhesion (magnetic attraction) according to DIN EN ISO 2808, method 7A.

Features

• Zinc die-cast metal housing for industrial use.
• Long-term stable magnet produced by ElektroPhysik.
• Measuring ranges from micrometres up to 20 mm depending on model.
• Weight compensation allows use in all positions: horizontal, vertical and overhead.
• Measurement on curved surfaces possible.
• Battery-free, purely mechanical operation.

Delivery content

• MikroTest device.
• Operating manual.
• Soft carrying case.

Technical specifications

• Ranges: 6 S3: 0.2–3 mm; 6 S5: 0.5–5 mm; 6 S10: 2.5–10 mm; 6 NiFe50: 0–50 µm (other variants as listed).
• Applications by variant: S3/S5/S10 — enamel, plastic, rubber on steel; NiFe50 — electroplated nickel on steel (steel grade ST 33–ST 60).
• Tolerance: S3/S5/S10 ±5% of reading; NiFe50 ±2 µm and +8% of reading.
• Minimum measurement area (Ø): S3: 30 mm; S5: 50 mm; S10: 50 mm; NiFe50: 20 mm.
• Minimum curvature radius (convex/concave): S3 15 mm/25 mm; S5 15 mm/25 mm; S10 15 mm/25 mm; NiFe50 10 mm/25 mm.
• Minimum substrate thickness: S3/S5 1.0 mm; S10 2.0 mm; NiFe50 0.5 mm.
• Ambient temperature: -20 °C to 100 °C.
• Dimensions: gauge 215 × 55 × 29 mm; carrying case 235 × 185 × 46 mm.
• Weight: case with gauge approx. 560 g.