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Dakota Ultrasonics ZX-6 / ZX-6 Data Logger Ultrasonic Thickness Gauge

Dakota Ultrasonics ZX-6

Dakota Ultrasonics ZX-6 & ZX-6DL Data Logger ultrasonic thickness gauge is at the top of the ZX line of basic thickness gauges. They combine a standard pulse-echo flaw detection measurement mode with a multi-echo through paint mode for use on materials with epoxy-based coatings and eliminate the coating error without having to remove it. They are equipped with adjustable gain, as well as auto Time-Dependent Gain in both measurement modes. Our limited 5-year warranty indicates how we feel about the durability and reliability of the ZX-6 Series.


Zero: Manual or auto-zero option.
Probe Types: Selectable probe frequency & diameter for improved linearity.
High-Speed Scan: Display the lowest reading found during a scan. Scan speed at 100Hz.
Differential Mode: Display the +/- difference from a nominal value entered.
Alarm Mode: High & low alarm limits with audible and visual indicators.
VX velocity: Measure in terms of velocity for nodularity testing


Weight: 11 ounces (with batteries)
Size: Width (2.5 in / 63.5 mm)
Height (5.17 in / 131.3 mm)
Depth (1.24 in / 31.5 mm)
Operating Temperature: -22 to 167F (-30 to 75C).
The extruded aluminum body with nickel-plated aluminum end caps (gasket sealed).


The sealed membrane is resistant to both water and petroleum products.
Nine tactile feedback keys.


Dual element (transmit and receive.)
1 to 10 MHz frequency range.
Locking quick disconnect LEMO connectors.
4-foot cable.
Custom transducers available for special applications.


5 Year Limited

Power Source

Two 1.5V alkalines, 1.2V NiCad, or 1.5V Lithium AA cells.
Typically operates for 45 hours on alkaline and 23 hours on NiCad
The low battery indicator on display. Auto shut-off after 5 minutes of inactivity
Line power USB-C connected to PC or power adapter.


Multi-function 7 segment 4.5 digit liquid crystal display with 0.500 in digit height. Two 0.125 in14 segment fields for labels and values, and one 7 segment field for labels and values. Additional icons to indicate features and modes.
The backlight is selectable on/off/auto, and selectable brightness (Low, Med, Hi) options.
The bar graph indicates the stability of the reading.


Serial over USB-C using CDC class (standard).
Accessory RS232 serial or Bluetooth option.


Dakota Ultrasonics ZX-6 Ultrasonic Thickness Gauge comes with factory calibration traceable to NIST & MIL-STD-45662A.


Pulse-Echo (P-E): 0.025 to 36.00 in (0.63 to 914.4 mm).
Echo-Echo (E-E): 0.100 to 6.00 in base metal, and 0.001 to 0.075 in (0.0254 to 1.905mm).
Range dependent on material types and transducer frequency & diameter.
Units: English & Metric
Resolution: 0.001 inches (0.01 millimeters)
Velocity Range: 0.0120 to .7300 in/μs (305 to 18,542 m/sec)
PRF: 200Hz
Display Update Rate: 10Hz
Gain: 40-52dB range in 3dB steps.
4-foot Gain (TDG): Used in both pulse-echo (P-E) and Echo-Echo (E-E) modes depending on transducer and frequency selected.

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