
Advantages
- Probe and wedge in the same housing
- The lowest-profile probe-and-wedge combination for contact angle beam inspection
- Coupling always good between probe and wedge interfaces, no need for couplant between the probe and wedge
- Very small assembly for easy access in restricted areas
- Inspections of 30° to 70° in steel, SW or LW
- Easy to handle
- Probes with an internal wedge can be specially ordered to fit a specific curvature radius.
Typical Applications
- Manual weld inspection of 6.35 mm to 19 mm (0.25 in. to 0.75 in.) thick surfaces (butt joints, corner joints, tee joints), using 40° to 70° simultaneously
- Manual inspection of stress-corrosion cracking
- AWS and DGS code compliant applications

Probe specifications and dimensions
These probes come standard with an OmniScan
® connector and a 2.5 m (8.2 ft) cable or can be specially fitted with other connectors and cable lengths.
Part number | Frequency
(MHz) | Number of elements | Pitch
(mm) | Active
aperture (mm) | Elevation
(mm) | Nominal refracted beam angle in steel | Integrated
Wedge | External dimensions
mm (in.) |
L | W | H |
4L16-DGS1 | 4.0 | 16 | 0.5 | 8.0 | 9.0 | 58° SW | Yes | 27 (1.06) | 17 (0.67) | 22 (0.87) |
2L8-DGS1 | 2.0 | 8 | 1.0 | 8.0 | 9.0 | 58° SW | Yes | 27 (1.06) | 17 (0.67) | 22 (0.87) |
2.25L16-45SW1 | 2.25 | 16 | 0.75 | 12.0 | 12.0 | 45° SW | Yes | 30 (1.18) | 15 (0.59) | 31 (1.22) |
2.25L16-45LW1 | 2.25 | 16 | 0.75 | 12.0 | 12.0 | 45° LW | Yes | 30 (1.18) | 15 (0.59) | 31 (1.22) |
5L16-45SW1 | 5.0 | 16 | 0.60 | 9.6 | 10.0 | 45° SW | Yes | 30 (1.18) | 15 (0.59) | 31 (1.22) |
5L16-45LW1 | 5.0 | 16 | 0.60 | 9.6 | 10.0 | 45° LW | Yes | 30 (1.18) | 15 (0.59) | 31 (1.22) |
2.25L16-AWS1 | 2.25 | 16 | 1.0 | 16.0 | 16.0 | N/A | No | 25 (1.0) | 38 (1.48) | 18 (0.70) |