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ZX-6 Multi Echo Material Thickness Gauge

Dakota ZX-6 Data Logging ultrasonic thickness gauge accurately measures material thickness and the extent of corrosion of metals, ceramics, glass and most rigid plastics - from only one side. When operated in E-E Mode (Thru-Paint Mode), the coating is eliminated from the reading and the gauge will display only the thickness of the metal wall.

The ZX6 provides both pulse echo measurement mode and multi echo through paint mode for measuring material thickness or material with epoxy-based coatings & eliminate 0.0254 to 1.905mm the error of the coating without having to remove it. The ZX6 is a top of the line basic thickness gauge with adjustable gain & auto time dependent gain in both measurement modes.

ZX6 is also offered in a datalogging ZX-DL model for data storage with USB data download. Additionally, optional Bluetooth & serial RS 232 modules are offered.

Product Specification

Range in Steel

Pulse-Echo Mode (Pit & Flaw Detection) measures from 0.025 to 19.999 inches 
(0.63 to 914.4 mm)
Echo-Echo Mode (Through Paint & Coatings) measures from 0.100 to 6000 inch 
(2.54 to 150 mm)
(range depends upon probe selected) - five probes to choose from


0.001 inch (0.01 mm)

Velocity Range

0.0120 to .7300 in/μs. 305 to 18,542 meters/sec

LCD Display

Multi-function 7 segment 4.5digit liquid crystal display with 0.500"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

Display Backlight

Backlight is selectable on/off/auto, and selectable brightness (Lo, Med, Hi) options

Display Update Rate

10 Hz (10 updates/sec)

Probes (optional)

1 to 10 MHz, 3/16" up to 1/2 inch (custom probes available)

Probe (Standard)

1/4", 5 MHz Hi-Damp Dual Element Transducer, p/n T-102-2700

Probe Wearface

PEEK (Polyethylethylkytone)


1.2m (4ft.) waterproof cable with non-polarized, quick-disconnect connectors

Temp. Limits

Ambient: -30 to 75° C (-22 to 167° F)
Material: -20 to 100° C (0 to 200° F)
High temperature probes available

Battery Type

2x AA batteries (rechargeable batteries can be used)

Battery Life

45 hours continuous use


308 grams (11 ounces)


63.5 x 131.3 x 31.5 mm (2.5" x 5.17" x 1.25")


Probe/cable assembly, 4 oz. bottle of coupling fluid, NIST Calibration Certificate, 2 AA batteries, operating instructions, hard-plastic carrying case.


Extruded aluminum body with nickel-plated aluminum end caps (gasket sealed)

Housing Rating



NIST Traceable and MIL-STD-45662A


Sealed membrane that is resistant to both water and petroleum products
Seven or eight tactile-feedback keys

Pulse Repetition Frequency (PRF)

200 Hz (200 pulses/sec)

To Lock Settings

With gauge powered off, press and hold the "+" key while powering on the gauge
The LOCK icon will be illuminated on the Display

To unLock Settings

With gauge powered off, press and hold the "-" key while powering on the gauge
The LOCK icon will turn off

GAIN Adjustment

Adjustable GAIN 5-position (VLOW, LOW, MED, HIGH, VHI), in 3dB steps, 40-52dB

Measuring Mode

Pulse-Echo (P-E), Echo-Echo (E-E, Thru-Paint Mode), Scan, Differential, Alarm and VX-velocity

Output Type


USB-C (plug-n-play, view files on PC which can be dragged and dropped)

Built-In Memory

10,000 data values stored in up to 40 batches with 250 values/batch

Memory Type

Sequential data file (single column)


Gauge: 1 Years
Probes: 90 Days

  • 0120 to 0.7300 in/μs material velocity
  • 025 to 36in (0.63 to 1219.2mm) thickness range
  • Pulse-Echo (flaw) & Echo-Echo (thru-paint) modes
  • Dual-element transducers (1-10MHz options)
  • 120MHz FPGA timing
  • 150volt square wave pulser
  • 001in (0.01mm) resolution
  • USB-C connectivity
  • -22°F (-30°C) low-temperature LCD display
  • IP65 protection rating
  • 1-year limited warranty
  • CE approved
Product Info Downloads
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