Electromagnetic acoustic transducers (EMAT) Rapid Motion Scanning provides a contactless and couplant-free method of measuring thickness of metals for storage tank, pipes and pressure vessel NDT inspection applications.
The EMAT Rapid Motion Scanner (ERMS) is the first JXB system for fast and reliable corrosion mapping of steel tanks, vessels and pipes.
Unlike conventional UT, EMATs do not require couplant hence less surface preparation is required.
EMAT does not require direct contact with specimen, hence suitable for rough and uneven painted surface.
Our harmonic ultrasonic sizing method helps deliver accurate thickness measurements even at high speeds.
High-speed scanning covers significantly more surface area per shift i.e. more of your asset inspected without increasing manpower or mobilisation costs.
No couplant and contactless technology translates to a faster setup, hence valuable time at site is spent on inspection and not surface preparation.
ERMS delivers millimeter measurements at every scan point, and not a relative percentage from a reference location, helping provide data for your fitness-for-service assessment requirements.
The ERMS is fast and simple to use with minimal training.
Our EMATs are designed to work on metals with coatings and wraps; refer to the probe specifications.
Our ERMS Pro software can automatically choose the optimum configuration for the test subject and seamlessly start data collection within seconds.
Raw thickness maps can be exported into CSV format for use in Excel and Sheets, or use ERMS Pro software to generate your final report in PDF or .DOC.
Here is the range of applications and value it brings to our customers.
The ERMS is designed to produce a corrosion map of your steel tank; typically under 5 minutes to get a 200 mm x 200 mm scan.
Operating Specifications
ERMS Box
| Dimension (W × H × D) | 244 x 127 x 290 mm |
| Instrument Weight (w/o battery) | 3 kg |
| Number of channels | 2 |
| Battery | Removable & swappable. No tools required. |
| Typical battery life | 100 continuous C-scans (200mm x 200mm) with 20,000 mAh battery |
| Typical scan speed | 0.05 m/s (4 minutes per 200 x 200 mm C-scan) |
ERMS EMAT
| Features | Shear wave EMAT ultrasound |
| Typical Lift-Off Distance from metal surface | Up to 2.0 mm |
| Applicable nominal wall thickness | 3 mm to 50 mm |
| Minimum detectable wall thickness | 1 mm |
| Test Specimen Materials | Carbon steel, stainless steel & other electrically conductive metals |
| Pipe Diameters | 2" and above |
| Test temperatures | -20 to 70°C (continuous contact) |