OKOndt Eddycon CL Eddy Current Flaw Detector

OKOndt Eddycon CL Eddy Current Flaw Detector

Large Display, Fully Featured Eddy Current Flaw Detector

The Eddycon CL is an easy-to-use, full sized version of OKOndt's Eddy Current Flaw Detectors, capable of performing all common eddy current inspections. It has a 7.2” display for easy viewing of test results for each frequency mode, and features buttons that provide direct access to primary functions. It complies with ISO 15548, ensuring that the Eddycon CL will meet the requirements of the most demanding applications.


  • Detection of surface cracks
  • Detects cracks in fastener holes of multi-layered aircraft structures using manual bolt hole probes or with the use of a rotary scanner
  • Detection of sub-surface flaws in non-magnetic conductive materials
  • Evaluation of conductivity and coating thickness of conductive/non-magnetic materials
  • Inspection of steel structures for fatigue and stress cracks
  • Can perform eddy current testing of aircraft components on all common aircraft
  • Used in Aerospace, Oil & Gas, Offshore Drilling Rigs, Amusement Park Rides, Railway, Mining and Machinery inspections




Key Benefits

HD Display

7.2" TFT color display with 800×480 pixels resolution ensures a large, high-definition picture on the screen. The screen has several display modes, such as light, dark, and standard.


Intuitive Software

The specialized application-dependent software of the Eddycon CL is user-friendly and intuitive, serving to process, generate and print out test results and reports. The software program allows working with the data saved on PC.


Quick Navigation

The keypad design gives a quick access to any menu of the flaw detector by pressing only a single key

  • TESTING menu - main operating mode of the flaw detector
  • MEMORY menu - is used to save/download the settings and test results
  • SETTINGS menu - basic settings of the flaw detector
  • VIEW menu - allows viewing test results saved to the flaw detector’s memory
  • CALIBRATION menu - serves to create calibration curves for more precise evaluation of flaw depth



Additional Features:

  • Easy-to-operate due to user-friendly intuitive interface.
  • Built-in stand for hands free operation
  • Visual and Audio alarms.
  • Strict compliance with ISO 15548.
  • Minimizes effect of lift-off and variations in electromagnetic properties.
  • Saving over 1000 settings and test results to the flaw detector memory.
  • Data communication to PC via USB flash drive or Ethernet.
  • Removable Micro SD Card
  • Specialized software for viewing test results and printing out test reports.
  • Application-dependent software for real-time displaying data on a PC.
  • Software upgrade using USB flash drives.
  • Evaluation of flaw depth.
  • Review of saved defectograms on the display of eddy current flaw detector.
  • Quick-release Li-Ion battery for continuous 7-hour operation.


The Eddycon CL Flaw Detector can be operated in the following standard Modes. Only the probe, cable and accessory - rotating drive are required.

  • Absolute Probe
  • Reflection Probe
  • Differential Probe
  • Rotating Probe
  • Conductivity Measurement
  • Coating Thickness (Non-Conductive over Conductive)

Probe Selection

Eddycon C can be used with a wide variety of eddy current probes, including most competitors' probes. See below for a quick guide to the different kinds available:
Surface Probes, Sub-Surface Probes, Manual Rotating Probes, Dynamic Rotating Probes, Weld Probes & Encircling Probes


Surface Probes:

Surface Probes are handheld and are used by making contact with the test surface. They use relatively high operating frequencies (over 1 MHz) and are good for detecting surface defects that are oriented perpendicular to the test surface.

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Sub-Surface Probes:

In order to detect flaws such as corrosion in the layers of multilayer aircraft structures, Subsurface Probes are required. Sub-Surface Probes allow effective eddy current testing even without removing fasteners or disassembling structures.

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Manual Rotating Probes:

Manual Rotating Probes (aka Bolt Hole Probes) are used for detecting surface cracks on the inside of fastener holes. They are available in virtually every diameter and cover a range of diameters (0.5 or 1 mm). They are available as absolute and differential models with a frequency range of 200 kHz to 3 MHz.

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Dynamic Rotating Probes:

Dynamic Rotating Probes (aka Dynamic Bolt Hole Probes) are used for testing bolt holes and countersinks. They are specifically designed to be used with the OKOndt SVR Rotating Probe Drive and Eddycon Flaw Detectors. They can be supplied as shielded or unshielded models with operating frequencies from 200 kHz to 3MHz.

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Weld Probes:

Weld Probes are specifically designed for testing painted steel structures like offshore drilling rigs, bridges, etc for fatigue cracks that typically occur at the toe of a weld and in the HAZ, which is difficult to inspect due to changes in magnetic properties like lift-off. OKOndt’s Weld Probes are specially designed differential probes that optimize the signal from a crack while minimizing the effects of lift-off and permeability (due to variable coating thickness and magnetic properties).

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Encircling Probes:

Encircling Probes are designed for testing cylindrical objects made of non-magnetic materials, like steel bars. As the name implies, they generally “encircle” the material to be tested and inspect from the outer diameter. OKOndt’s Encircling probes can be used in an absolute mode or differential mode when paired with a 2nd coil. They are used for sorting (alloy or hardness), as well as in flaw detection applications such as weld defects, cracks, etc. in rods and tubing.

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Technical Specifications

Eddycon CL Specifications

General Specifications
Frequency Range 0.01 to 16000 kHz
Gain 70 dB
Horizontal/Vertical Gain -30 ... +30 dB
Additional Gain 30 dB
Probe Supply Voltage 0.5V, 1V, 2V, 4V, 6V
Phase Rotation 0 to 359.9
Test Frequency 1 to 11 kHz
Signal Persistence Time 0.1 s, 0.3 s, 0.5 s, 1 s, 2 s, 3 s, 4 s, 5 s, 8 s

Low-pass: 1 to 5500 Hz

High-pass: 1 to 5500 Hz




Supply Mains 100 V to 240 V, 50 Hz to 60 Hz
Applicable Standards CE, ISO 15548-1
Keypad English, International (Icons)
Connected Probe Types Single, Reflection, Bridge
Probe Connector Lemo 00, Lemo 12 way / Lemo 16 way
LAN Yes (RJ 45)
Threshold Level Types Circle, Threshold, Sector, Trapezium
Type Sound and Visual
Capacity 8 Gb (up to 32 Gb optional)
Removable Micro SD Card Yes

1 Largest Defectogramm - 15.6 Mb

1 Settings Takes - 25 kb

Time of Recording

1 kHz - 16 min, 30 sec (max)

11 kHz - 1 min, 30 sec (max)

Signal Display Modes

Complex Plane - X(y)

Time Base - X(t), Y(t)

Dual Frequency Mode

Dual Frequency Multiplexing

Multi-Frequency Operation

Independent control of both frequencies;

Mix of two frequencies (F1 - F2, F1 + F2)

Display Size 6.14 x 3.70 in (156 x 94 mm)
Display Diagonal 7.2 in
Resolution 800 x 480 px
Type Color TFT
Display Modes Normal, Full Screen; Three color schemes
Grid Three types: coarse, fine, polar
Type Li-Ion 12B/4500 mA*h
Operation Time

Normal Mode - up to 7 hours

If using rotary scanners - 4-5 hours

Operating Conditions
Operation Temperature -4 to 122 F (-20 to 50 C)
IP Rating IP 64
Overall Dimensions 10.08 x 6.14 x 3.39 in (256 x 156 x 86 mm)
Weight 5.29 lb. (2.4 kg)

Kit Includes

Eddycon CL Standard Kit

  • OKOndt Eddycon CL Flaw Detector
  • Eddy Current Probe
  • Connection Cable Lemo 16 - Lemo 04 (connector type 0B, Reflection type)
  • Charger
  • Calibration Block (Carbon Steel)
  • Software for operation with PC
  • Operation Manual
  • Quick Start Guide
  • Registration Certificate for calibration block and for ECP
  • Carrying Case
  • Transport Bag
Basic Surface Probe Kit Includes

  • Surface Probe, SU500K3Dx25-105S, Dia. 3mm, Length: 115mm, Freq. 500kHz, Microdot Connector, Fe/NFe
  • Cable, Lemo 00 to Microdot
  • Calibration Block, RS2353/1-3N-AL , Aluminum, Defect Depth: 0.2mm, 0.5mm, 1mm with plastic shims 5x0.2mm

Product Literature

Description Part # Saved Price Select Option Add to
OKOndt EddyCon CL Kit Includes: Unit, Probe, Lemo 16 - Lemo 04 Cable (Standard Supply), Calibration Block (Carbon Steel), Software, Manual, Quick start guide, Registration Certificate for Calibration Block and ECP, Case & Bag EC-OKO-EDDYCONCL-L16 $7,875.00
OKOndt EddyCon CL Kit Includes: Unit, Probe, Lemo 12 - Lemo 04 Cable (for Olympus users), Calibration Block (Carbon Steel) Manual, Quick Start Guide, Software, Registration Certificate for Calibration Block and ECP & Carrying Case EC-OKO-EDDYCONCL-L12 $7,875.00
OKOndt Surface Inspection Kit Includes: Surface Probe SU500K3Dx25-105S, Dia. 3mm, Length 115mm, Freq. 500kHz, Microdot Connector, Lemo 00 to Microdot Cable, Cal Block, RS2353/1-3N-AL, Aluminum, Defect Depth: 0.2, 0.5 & 1mm w/plastic shims 5x0.2mm EC-OKO-PK-SUR-1 $650.00
OKOndt Basic Weld Inspection Probe Kit EC-OKO-PK-WELD-1 $995.00