Sonatest Masterscan 700m Narrowband Ultrasonic Flaw Detector
Key specifications
| Parameter | Masterscan 700M |
|---|---|
| Type | Digital narrowband ultrasonic flaw detector |
| Test range | Approximately 0–20,000 mm in steel |
| Material velocity | 256–16,000 m/s |
| Gain | 0–110 dB |
| Pulser | 100–450 V, spike and square wave |
| PRF | 5 Hz–5 kHz according to Sonatest’s current specification |
| Rectification | RF, full-wave, + half-wave, − half-wave |
| Gates | 2 |
| Display | Full VGA colour display |
| Transducer connections | BNC or LEMO, depending on configuration |
| Storage/connection | USB/internal storage |
| External interfaces | Encoder, video, proportional output, external sync |
| Battery | Lithium-ion; Sonatest states up to 13.5 hours |
| Environmental | Rugged, water-resistant construction |
| Typical weight | About 2.2–2.5 kg with battery |
The manufacturer’s current page specifies a 100–450 V pulser, 5 Hz–5 kHz PRF, two gates and a range of sizing/data-management options. Some older published specifications report PRF up to 6 kHz and battery life of 16–18 hours, so specifications can vary by software/firmware revision or documentation.
Main capabilities
Advanced flaw evaluation: DAC is standard, while Split DAC, TCG, DGS/AVG, AWS, API, BEA and corrosion software can be added as options. This makes the 700M suitable for different inspection codes and procedures.
Good near-surface performance: Sonatest’s Active Edge™ mode is designed to improve near-surface resolution. The 450 V pulser provides substantial penetrating capability, while selectable spike/square excitation helps accommodate different probes and inspection situations.
Multiple inspection modes: It supports pulse-echo and transmit/receive operation with single-crystal, dual-crystal and pitch-catch probes. Published specifications list eight selectable frequency/filter bands, ranging from low-frequency bands through a wideband 1.6–33 MHz setting.
Data management: Sonatest’s UT-Lity software allows A-scans, B-scans, calibrations and thickness-log data to be managed on a PC, with reporting and export capabilities.
Typical applications
- Weld inspection
- Corrosion and thickness measurement
- Forgings and castings
- Composite inspection
- Bond testing
- Power-generation components
- EMAT-related inspection
- General manual ultrasonic testing
Overall, the Masterscan 700M is a conventional high-performance UT flaw detector rather than a phased-array instrument. Its strength is rugged field operation, high-voltage pulsing, narrowband filtering, conventional probe compatibility and extensive defect-sizing software.
If you’re evaluating a used Masterscan 700M, the next useful step is to check its exact hardware configuration, installed software options, probe connector (BNC/LEMO), battery condition, calibration status, and whether UT-Lity/required software is included.












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