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Crack depth meter 281M electro potential

Article: MP_281M_BK
CRACK DEPTH METER 281M ELECTRO POTENTIAL
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Crack depth meter 281M - High-precision instrument for measuring the depth of cracks exposed on various metals and alloys (incl. stainless steel, duraluminum), previously detected by other methods.


The operating principle of the Crack Depth Meter – AC electro potential measuring that provides prompt and precise depth test
(in comparison to traditional methods).

The device is the most efficient in combination with other crack-revealing methods: magnetic particle, capillary or eddy-current.

TYPICAL CONTROL OBJECTS:

  • Shafts, rolls, rolling mills, details of constructions, machines and mechanisms;
  • Pipes, tubes, oil-and-gas pipelines;
  • Pressure vessels;
  • Energy industry devices.

OPERATIONAL ADVANTAGES

  • Сontrol of ferromagnetic and non-ferromagnetic materials(stainless steel, aluminum alloys, etc.)
  • Wide measuring range - from 0.2 to 100.0 mm.
  • Low impact of the material electromagnetic properties on themeasurement result.
  • The device is equipped with various design sensors to control products of irregular shape.
  • Mobile spring-loaded contact electrodes of the sensor enable theuser to perform measurements on curved surfaces.
  • Crack Depth Meter works successfully in field, workshop andlaboratory conditions.

STAGES OF CRACK DEPTH MEASURING

  1. Setting of the “0” - measuring on flawless location of the object.
  2. Measuring of crack depth – contact electrodes are located on the opposite sides of the crack, measurement result in mm is shown on the screen.

REQUIREMENTS FOR CONTROL OBJECTS

  • Surface roughness – below or equal to 40 Rz (10 Ra)
  • Stable electric contact with the sensor electrodes
Measuring range (crack depth)  0 - 100 mm
Measuring accuracy  20 %
Maximum crack width (depending on the sensor
design)
up to 3,5 mm
Minimum crack length  5 crack depths, no less than 3 mm
Power supply accumulator 
Display lighting  provided
Automatic switch off  provided
Electronic unit dimensions 160х85х30 mm
Weight  400 g
Operating temperature range  +5 ... +40 °С
Warranty 1 year from the day of delivery

Basic delivery set:

Sensor_2х2-Crack depth meter-281M

  1. Electronic unit – 1 piece
  2. Accumulator - 1 piece
  3. Sensor “1x4” - 1 piece
  4. Test block with 2 mm crack – 1 piece
  5. Charger – 1 piece

Accessories

  • Sensor “2x2” for hard-to-reach areas (fillets etc.)
  • Sensor “3+1” for cracks deeper than 30 mm (with external electrode)

Description of the Crack depth meter 281M
Crack depth meter 281M electro potential Download - Description Hardness tester TKM‑459CE

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