Electromagnetic testing device Texar

calibrationthicknessmanual

The Texar is a low-frequency electromagnetic testing system designed for non-contact detection of local metal thinning in ferromagnetic items. It is used for inspecting a variety of metal surfaces such as storage tank bottoms, pipelines, and process furnaces.Non-contact inspection of metallic items when access is available from one side.Detection of metal loss, wall thinning, and pitting corrosion.Suitable for inspecting:Boilers heating surfacesProcess furnacesBottoms and walls of storage tanksPipelines and vesselsOperational advantages:No need for surface grinding or cleaning unless in-line inspection is required.Inspections unaffected by uniform rust, scale, or water inside non-ferrous vessels.Can differentiate between inner and outer defects in a single pass.No blind zones during testing.Absence of permanent magnets ensures long-term effectiveness.Wireless data transfer to laptops via Bluetooth.Wide frequency range: 1–30,000 Hz.Features:Multichannel electromagnetic device.Various transducer options for different applications:Flat working surface transducer for large storage tanks or pipelines.Concave surface transducer for pipeline inspection.In-line cylindrical transducers for internal inspections (e.g., heat exchangers).Eddy current transducers for crack detection in welds.Can be calibrated using test blocks for enhanced accuracy.3D data visualization and quantitative evaluation of metal thinning and pitting corrosion.Probes characteristics:Flat working surface transducer: For large storage tanks or pipelines over 700 mm in diameter. Installed on a wheelbase for steady movement and correct gap setting.Concave surface transducers: Designed for fitting pipeline diameters. Installed on a wheelbase to maintain steady movement and correct gap between the transducer and object.In-line cylindrical transducers: Used for in-line inspection, such as pipes in heat exchangers.Eddy current transducers for balanced field: Used for crack detection in welds, weld proximity zones, and core metal parts.Exploitation:Operates with a frequency range from 1 Hz to 30,000 Hz.Low-frequency mode (5–30 Hz) for ferromagnetic materials.High-frequency mode (1,000–30,000 Hz) for non-ferromagnetic materials, including non-magnetic metals and alloys.Operating principle:The Texar operates based on the interaction between alternating magnetic fields and metal. It works in two main modes:Low-frequency mode (5-30 Hz): Primarily for ferromagnetic materials, where the system detects changes in the magnetic field caused by metal thinning, corrosion, or other alterations. At low frequencies, eddy currents inside the metal are negligible, and the device detects areas where magnetic flux resistance alters due to pitting corrosion and thinning.High-frequency mode (1,000–30,000 Hz): For non-ferromagnetic materials, such as austenitic steel, and other non-ferromagnetic alloys. In this mode, the system operates as an eddy current device to detect cracks and other defects.In essence, the system works by inducing a “magnetic swing” or oscillation in the metal under inspection. Variations in the amplitude and phase of the signal from the transducer indicate the presence of defects, such as thinning or corrosion. The system calculates the mass of the “magnetic pendulum” under the transducer’s sensitive element to provide data on defect size and type.Technical specifications:SpecificationDetailsMinimum detectable defectsWall thinning: 5% of initial thickness, Pitting: 3 mm dia, 30% depth. Read more in Operation manual.Accuracy of defect size evaluationEstimative, with defect depths of 20%, 50%, and 70%Used frequencies5–30 Hz (ferromagnetic), 1,000–30,000 Hz (non-ferromagnetic)Maximum speed of inspection0.3 m/sTesting zone width100–165 mm (depends on transducer model)Dimensions (manual 16-channel transducer)Length х Width х Height: 230 х 119 х 140 mmMass of transducer16-channel flat transducer weights approx. 1.3 kgBattery lifeUp to 10 hoursPower consumption10 WOperating temperature range-30 to +50 °CNumber of channelsfrom 1 to 16Delivery set:Electronic data unit for data processingMultichannel electromagnetic transducer (specific type per technical enquiry)Laptop/Tablet/Industrial tablet (as per technical enquiry)Connecting cable for electronic unit and transducerAC adapterAccumulatorSoftware (SD card)Carry and storage caseFAQ (selected):What is low-frequency electromagnetic testing? Low-frequency electromagnetic testing is a non-destructive testing (NDT) method that utilizes alternating magnetic fields to detect metal thinning, corrosion, and other material defects in ferromagnetic objects. This technology is especially useful when inspecting items that are difficult to access from multiple sides or require a non-contact testing method.How does low-frequency electromagnetic testing work? Low-frequency electromagnetic testing works by applying a magnetic field to a ferromagnetic material, typically in the range of 5–30 Hz. As the magnetic field interacts with the metal, it creates alternating currents within the material, which can be measured by the testing equipment. Defects such as thinning of the material or corrosion alter the magnetic properties in localized areas, causing changes in the magnetic field. The testing equipment detects these changes, helping identify areas that need further inspection or repair.What are the benefits of low-frequency electromagnetic testing? Non-contact inspection, no surface preparation required, ability to detect both surface and subsurface defects, wide application.What types of defects can be detected? Metal thinning, pitting corrosion, cracks, other localized defects.Key features: Wide frequency range, wireless data transfer, no permanent magnets, flexible transducer options.Materials tested: Particularly effective for ferromagnetic materials like carbon steel and low-alloy steels. Also usable on non-ferromagnetic metals such as austenitic steels and other non-ferrous alloys at higher frequencies.Calibration: Yes, calibration is important to ensure accurate results. Calibration can be done using test blocks or known reference materials.Result interpretation: Results are typically displayed on a laptop or tablet screen in the form of A-Scan (amplitude and phase) or C-Scan (color-coded map). The data represents variations in the material's magnetic properties, with defect areas showing a change in the signal strength or phase.Advantages over other NDT methods: No need for surface preparation, detection of both inner and outer defects, non-invasive and fast, applicable in various industries.Limitations: Not suitable for non-ferromagnetic materials at low frequencies, extremely small defects, complex geometries.Characteristics / Technical specifications:Minimum detectable defects: Wall thinning 5% of initial thickness, pitting 3 mm diameter, 30% depthAccuracy of defect size evaluation: Estimative, with defect depths of 20%, 50%, and 70%Used frequencies: 5–30 Hz (ferromagnetic), 1,000–30,000 Hz (non-ferromagnetic)Maximum speed of inspection: 0.3 m/sTesting zone width: 100–165 mm (depends on transducer model)Dimensions (manual 16-channel transducer): 230 х 119 х 140 mmMass of transducer: 1.3 kg (16-channel flat transducer)Battery life: Up to 10 hoursPower consumption: 10 WOperating temperature range: -30 to +50 °CNumber of channels: 1 to 16