Crack depth meter ET-28

Crack depth meter for crack depth from 0.5 to 100 mm

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Description

Non-destructive measurement of crack depths in metals and alloys.

It is a high-precision, hand-held instrument explicitly designed for measuring the depth of cracks on various metals and alloys, including stainless steel and duralumin, which have been previously detected by other methods.

Advantages

  • The crack depth meter operates on the principle of AC electro-potential measurement, providing prompt and precise depth testing compared to traditional methods. It works most efficiently in combination with other crack-revealing methods, such as magnetic particle, capillary, or eddy-current testing.
  • Suitable for measurement on both ferromagnetic and non-ferromagnetic materials (e.g., stainless steel, aluminum alloys).
  • Wide measuring range from 0.2 to 100.0 mm.
  • Minimal influence of material electromagnetic properties on measurement results.
  • Equipped with various probe designs for inspecting products of irregular shapes.
  • Mobile spring-loaded contact electrodes on the probe enable measurements on curved surfaces

How does it works

  • Setting of the “0” – measure on an undamaged area of the object.
  • Measuring of crack depth – position the contact electrodes over the crack, and the depth measurement in mm will be displayed on the screen.

Applications

  • Shafts, rolls, rolling mills, construction components, machines, and mechanisms
  • Pipes, tubes, oil-and-gas pipelines
  • Pressure vessels
  • Energy industry devices

Features

  • Measuring range (crack depth) 0.5 – 30 mm
  • Estimating range (approximate crack depth) 30 – 100 mm
  • Measurement accuracy up to 20 %
  • Maximum crack width (depending on probe design) up to 3.5 mm
  • Minimum crack length 5 crack depths, minimum 3 mm
  • Dimensions of electronic unit 150х80х30 mm
  • Weight 0.5 kg
  • Operating temperature range +5 to +40 °C
  • Operating relative air humidity 30 to 80%
  • Requirement for the object: Surface roughness of 40 Rz (10 Ra) or less, stable electrical contact with the probe electrodes

Delivery

  • Electronic unit with accumulator
  • Probe “1×4”
  • Test block with 1 crack
  • Charger
  • Carrying and storage bag

Additional information

Model

TB 1000-0.1F, TB 1000-0.1N, TB 1000-0.1FN, TB 2000-0.1F