Minitest 650FN – The Robust coating thickness measurement gauge


Available on backorder

SKU: Minitest 650FN

MiniTest 650 is a robust gauge to measure coating thickness on rough and abrasive surfaces. The video explains how to calibrate correctly in order to achieve highest precision measuring non-magnetic coatings on steel and insulating coatings on non-ferrous metals.

Price from:  1,350.0
(Price just for reference only)

Available on backorder


MiniTest 650 – The Robust coating thickness measurement gauge. The MiniTest 650 has a fixed external probe for all non-magnetic coatings on steel and all insulating coatings on nonferrous metals. For measurement on rough steel surfaces, e.g. in shipyards, the F probe comes equipped with special wear protection to ensure long service.

MiniTest 650 FN – coating thickness measurement gauge

To measure non-magnetic coatings (varnishes, enamels etc.) on ferromagnetic substrates (e.g. steel used in construction and for auto body) and to measure insulating coatings (varnishes, enamels, anodic coatings etc.) on non-ferrous metals (aluminium, copper, brass etc.).
With statistics display (number of readings taken, mean values, standard deviation, maximum, minimum).
Measuring range 0 to 2 mm.
Interchangeable measuring units µm or mils.
Enables 1-point and 2-point calibrations.

Non-destructive coating thickness measurement:

  • Non-magnetic coatings like varnishes, enamels, chrome and zinc on ferromagnetic base materials (e.g. steel)
  • Insulating coatings like varnishes and anodising aluminium on non-ferrous metals (e.g. aluminium, copper, die-cast zinc)

Measuring principles

  • Magnetic induction (F-type sensors) according to DIN EN ESO 2808, method 7C
  • Eddy current (N-type sensors) according to DIN EN ESO 2808, method 7D


  • Coating thickness measurement of up to 2 and 3 mm
  • Universal probe offering automatic substrate identification for quick measurement on steel and non-ferrous metals
  • Wear-resistant probe tips with practically unlimited durability
  • USB-interface to transfer data to a PC
  • Statistical evaluation of the readings (measurement data)

Supply schedule

  • Gauge MiniTest 650 with fixed probe
  • 3 batteries AAA / LR03 / Micro
  • Control plate(s), calibration standards in folding case
  • Operating manual on a CD
  • Quick reference guide
  • Factory certificate
  • Soft case

Minitest 650FN – Technical details

  • Measuring range: FN (dual sensor): 0 µm – 2000 µm / 80 mils
  • Measuring uncertainty: ± (2 % of reading + 2 μm / 0.08 mils)
  • Minimum curvature radius: 5 mm / 0.2“ convex. 25 mm /1“ concave
  • Minimum measuring area: Ø 20 mm
  • Minimum base thickness: Sensor F: 0.5 mm. Sensor N: 50 µm / 2 mils
  • Display: 4-digit screen data (11 mm / 0.44”)
  • Measuring units: μm – mils, user selectable
  • Calibration: standard, 1-point and 2-point calibration
  • Statistics: calculated from maximum 9.999 readings – mean value – standard deviation – number of readings – minimum – maximum
  • Interface: USB
  • Power supply: 3 Micro AAA batteries (for more than 10,000 readings)
  • Dimensions: gauge: 70 mm x 122 mm x 32 mm. sensor: Ø 15 mm x 62 mm
  • Weight: 225g
  • Ambient temperature: gauge: 0 °C – 50 °C. sensor: -10 °C – 70 °C


Made in Germany