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LIZARD® M8 System

The LIZARD® M8 NDE system is an advanced electromagnetic defect detection and corrosion mapping system for structural and materials integrity assessment. System variants are available for topside or subsea inspection use, both operating under the same LISS software to ensure a common interface for all users. With the implementation of the new build standard the LIZARD® M8 is now able to drive extended probe cables of up to 200M in length, whether topside only or topside to subsea allowing for the use of the topside LIZARD® M8 system for ‘near surface’ or ‘air diving’ subsea inspection programmes. For deep water applications the LIZARD® Dive system is available either for diver or ROV deployment.

The LIZARD® system provides uncompromising performance in one low cost instrument. Whether your need is LIZARD® Electromagnetic Array, LIZARD® AC Field Measurement, advanced LIZARD® Field Gradient Imaging (FGI) or Classic Eddy Current inspection or alternatively choose a user defined combination of techniques to ensure total confidence in defect detection.


The latest build standard of the topside LIZARD® M8 provides –


System Specification -

  • Multi-Channel system compliant with EN1711, EN473 and ASTM E2261-07 inspection
  • Lizard® Inspection and Analysis software (LISS)
  • Lizard® Eddy Current, Alternating Current Field Measurement, EMA (Electromagnetic Array) and FGI (Field Gradient Imaging) simultaneous acquisition display
  • Defect sizing, display switchable between raw signal and defect depth modes
  • Remote controlled operation for single user operation
  • Fast digital sampling for rapid inspection rates and software filters for scan noise reduction
  • Full inspection traceability with full data storage and retrieval
  • Metal sorting capabilityLizard M8 System
  • Automatic probe gain set up

Interface -

  • Standard RS485 USB Communication Port allowing up to 500M distance between Lizard® M8 and laptop/PC
  • Additional RS232 communication port for optional short distance connection
  • Lizard® FGI, EMA and Alternating Current Field Measurement probe support via Lemo connector
  • Classic Eddy Current probe Jaeger style connector (adaptors available for most third party Eddy Current probe types, alternative connector options available at point of order)
  • Scan Encoder input for marker, distance , remote control use
  • LIZARD® Probe extension ready up to 200M, either for topside to topside or topside to subsea

Power -

  • Easily sourced rechargeable Smart battery pack for up to 10 hours use
  • Easily sourced universal AC adaptor/charger unit for continuous use or charging of Smart batteries

Probes

The standard range of LIZARD® probe types are designed to suit most industrial applications and common weld geometry found within many engineering structures with most probe types available as either topside or subsea variants. Typically LIZARD® probe types are supplied as arrays with Absolute (Bx) and Current Perturbation (Bz) per channel. In this way the LIZARD® allows the user to obtain data sets from a single sweep that encompasses defect location, defect depth and length information, lift off/probe coupling and Classic impedance information from both Absolute (Bx) and Current Perturbation (Bz) components in a user friendly display (Note - Lift Off is a term that describes the distance between the active probe and the conductive surface of the test piece probe coupling).

Due to the unique LIZARD® interrogating technology the user is able to apply adjustments to the raw or processed data to improve scan clarity by reducing the effect of Lift Off (probe ‘wobble’ minimisation) and defect display optimisation, all by way of simple software sliders or numeric input.

The LIZARD® probe range are generally housed in a hard anodised aluminium body housing with super hard encapsulate for coil protection. Due to the available ‘Lift Off’ properties of the LIZARD® probe types additional protection can be given to the probe face without compromising inspection integrity. Additionally this ‘Lift Off’ can also be utilised for inspection through non-conductive coatings (such as paint, epoxy coatings) or conductive coatings (such as flame sprayed aluminium, zinc).

Due to the unique process used by the Lizard® LISS software for defect measurement, encoder devices are not generally required and therefore structures still having grime, grease or other residual coatings, can easily be inspected without the usual concerns or cleanliness required for mechanical or optical encoders. Should the application require an encoder however the LIZARD® M8 system can provide support by simple connection to the Remote port.

Software

The LIZARD® LISS software is the powerhouse that drives the LIZARD® technology, whether for topside or subsea applications, the common interface ensures all users can readily apply the LIZARD® technology to a variety of applications without the requirement for additional software training. The GUI is deliberately designed to utilise graphical input by way of simple sliders for rapid data manipulation with the option of hot keys for common tasks.

LISS provides an unparalleled level of data review from a single data set, switchable between various Plot modes to suit the application without the requirement to repeat scans. Most Plot modes within LISS typically feature data sets comprising of AC Field Measurement (Bx/Bz) and Classic Impedance information, this allow for greater clarity of scan data and the ability to manipulate the Impedance output for even greater control of AC Field Measurement data.

LISS operates within the Windows environment and as such features cross compatibility with other Windows software packages making report scripting quick and easy. LISS is compatible with Windows XP, Vista and Windows 7 and continues to be developed with incremental updates as standard.