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Standard probe "N-345" for flaw detector VID-345

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STANDARD PROBE "N-345" FOR FLAW DETECTOR VID-345
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Standard probe "N-345" for Magnetic-eddy current flaw detector VID-345 is intended for detecting cracks and measuring their depth, detecting stress- corrosive cracks in metal ferromagnetic constructions, even under layer of corrosion and/ or protective coating.
Flaw detector enables to measure depth of corrosive damage as well as thickness of protective coating.


The device combines magnetic and eddy-current methods for flaws detection, which enables the user to control products with rough corroded surface and to measure through the layer of insulating coating of variable thickness without any additional readjustment.


The principle of operation of the Probe "N-345"

Under the influence of an alternating magnetic field formed by the probe "N-345", eddy currents are excited in the controlled area of the product. Eddy currents in the area of the crack form magnetic scattering fields, which are recorded by the probe.

At the same time, the distance from the probe to the controlled metal surface is determined using an alternating magnetic field. Registration of these parameters allows to measure the thickness of the protective coating or the depth of corrosion damage, as well as to identify and determine the depth of the crack, regardless of the thickness of the protective coating or the depth of corrosion damage.

Objects of control:

- pipes, pipelines,
- oil and gas pipelines,
- vessels, pressure vessels,
- objects of energy production,
- details of structures, machines and mechanisms.

ATTENTION! If you buy only probe "N-345", the Flaw detector VID-345 should be sent to the retrofit and alignment.

Magnetic-eddy-current flaw detector VID-345 is designed for industrial and field conditions. 

Standard probe "N-345" allows measurements: 

  • on coarse and corroded surface (preowned pipes, parts of structures, mechanisms),
  • on a damp, dirty surface,
  • on surfaces with variable thickness of insulating coating.

Operation modes of VID-345

Searching for stress-corrosion fractures, with simultaneous detection of their depth and monitoring the thickness of the insulating coating If thickness of the insulation coating is from 0 to 4 mm
Searching for stress-corrosion fractures If thickness of the insulation coating up to 10 mm

ATTENTION! If you buy only probe "N-345", the Flaw detector VID-345 should be sent to the retrofit and alignment.

Design features of the standard probe "N-345"

Standard probe "N-345" for flaw detector vid-345

The probe has a durable metal housing. The surface in contact with the controlled object is made of high-strength ceramics, which provides resistance to abrasion.

On the body of the probe are the elements of excitation and reception of the magnetic field:

  •  red led  indicates the presence of cracks;
  •  yellow  led  indicates a change in the thickness of the protective layer or the detection of corrosion damage.

A connecting cable is used to connect the probe to the electronic unit of the flaw detector.

ATTENTION! If you buy only probe "N-345", the Flaw detector VID-345 should be sent to the retrofit and alignment.

Technical specifications

Minimal fracture opening  0,05 mm
Minimum detectable fracture length 10 mm
Detectable fracture depth range 0,3 - 5 mm
Fracture depth measurement inaccuracy 0,2 mm + 0,1h  (where “h” is crack depth)
Insulating coating thickness measurement range 0 - 6 mm
Insulating coating thickness measurement inaccuracy 10 %
Maximum insulating coating thickness allowing fracture detection up to 10 mm
Exploitation conditions of flaw detector air temperature -15 to +40 °С
LBH of electronic module is 150 х 80 х 35 mm
LBH of probe is 25 х 25 х 60 mm
Weight of electronic module and probe 0.5 kg
Power supply is self-contained from 2 Ni-MH batteries (1.2 V) or similar or from battery type AA 1.5 V ALK
Continual working time from battery is 10 hours
Control of battery discharge provided
Warranty 1 year from the day of delivery
Standard probe "N-345" 1 piece

ATTENTION! If you buy only probe "N-345", the Flaw detector VID-345 should be sent to the retrofit and alignment.


Description of the Magnetic-eddy current flaw detector VID-345 Magnetic-eddy-current flaw detector VID-345 Download - Description Hardness tester TKM‑459CE
Operation Manual of the Magnetic-eddy-current flaw detector
VID-345
Operation Manual-Magnetic-eddy-current flaw detector VID-345 Download - Description Hardness tester TKM‑459CE

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