The Dakota NDT ZX3 is a pulse-echo ultrasonic thickness gauge with a dual element transducer, designed for thickness and corrosion measurement in demanding industrial conditions: rugged aluminium housing, wide measuring range and adjustable gain.
- Pulse-echo measurement: 1–10 MHz dual element transducer
- Measuring range: 0.63–914.4 mm
- Resolution: 0.01 mm
- Adjustable gain: 40–52 dB (3 dB steps)
- High-speed scan: shows minimum thickness (100 Hz)
- Robust housing: aluminium, operating range −30…+75 °C
- 5-year warranty: NIST traceable calibration
The ZX3 measures thickness by the pulse-echo ultrasonic method: a dual element transducer (transmitting and receiving element) generates high-frequency pulses that travel through the material and are reflected by the far wall. The 120 MHz FPGA timing and the 150 V square wave pulser ensure stable measurements even on corroded or attenuating materials.
It is the ideal instrument for corrosion and pitting inspection on pipes, tanks, boilers and metal structures, as well as on glass and other materials. The high-speed scan mode quickly locates the point of minimum thickness; the sealed extruded aluminium housing and the membrane keypad make it suitable for the harshest environments.
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Technical specifications
| Feature | Value |
| Instrument type | Pulse-echo ultrasonic thickness gauge with dual element transducer |
| Timing / pulser | 120 MHz FPGA; 150 V square wave pulser |
| Measuring range | 0.63–914.4 mm (0.025–36.00 in), depending on material and transducer |
| Resolution | 0.01 mm (0.001 in) |
| Velocity range | 305–18,542 m/s (0.0120–0.7300 in/µs) |
| Units of measurement | Metric and imperial |
| Gain | 40–52 dB, adjustable in 3 dB steps |
| Zeroing | Manual or automatic |
| Transducers | Dual element 1–10 MHz, quick-release LEMO connectors, 1.2 m cable |
| Scan mode | High speed at 100 Hz (shows minimum thickness) |
| Display | 4.5-digit 7-segment LCD, backlight on/off/auto, stability bar graph |
| PRF / update | 200 Hz / 10 Hz |
| Keypad | 9 sealed membrane keys (resistant to water and petroleum derivatives) |
| Power supply | 2 × AA (alkaline / NiCad / lithium); ~45 h with alkaline; auto power-off after 5 min |
| Housing | Extruded aluminium with nickel-plated aluminium end caps, sealed gaskets |
| Operating temperature | −30 … +75 °C |
| Dimensions | 63.5 × 131.3 × 31.5 mm |
| Weight | approx. 312 g (11 oz, with batteries) |
| Certification | NIST and MIL-STD-45662A traceable |
| Warranty | 5-year limited |
Part numbers, accessories and spare parts
Order codes for the ZX3 and its accessories. Part numbers will be added as they become available.
Instrument – complete kit
| Item code | Product code | Description |
| — | ZX3 | ZX3 ultrasonic thickness gauge – thickness and corrosion measurement (base instrument, without data logger) |
Accessories
Photo
Item code
Product code
Description
—
Dual element transducer
1–10 MHz dual element transducer with quick-release LEMO connectors (various frequencies according to the application)
—
Couplant
Coupling gel for ultrasound transmission
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Carrying case
Carrying case for the instrument and its accessories
—
Grip / protection
Hand grip and display protection
Technical documentation
| Document | Type |
| ZX3 / ZX5-DL data sheet | Datasheet (PDF) |
| ZX3 manual | User manual (PDF) |
Frequently asked questions
A pulse-echo ultrasonic measurement with a dual element transducer, ideal for remaining thickness and corrosion on metals, glass and other materials.
From 0.63 to 914.4 mm (0.025–36 in), depending on the material and the transducer, with a resolution of 0.01 mm.
No: the ZX3 is the base version without a data logger. For data memory, USB-C and a Bluetooth module, the ZX5-DL is available.
Yes: sealed extruded aluminium housing, membrane keypad resistant to water and petroleum derivatives, operation from −30 to +75 °C and a 5-year warranty.
Contacts & Information
Contact for general information : info@roder.it
Machine Vision Division of RODER : www.visiotronix.com
RODER Instruments Division : www.innovacheck.com
More about RODER : about us
The information contained in this website is provided for information purposes only. Although it has been prepared with the greatest care, it does not constitute a contractual offer or a binding commitment to supply. It may contain transcription, translation or typographical errors. For precise and up-to-date information, please contact our company directly.
Note: Some images on this website have been intentionally generated using artificial intelligence (AI). This is because, for many applications and projects, photographs of the actual installation or system cannot be disclosed owing to confidentiality agreements, contractual clauses and non-disclosure agreements (NDAs).
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