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Dakota Ultrasonics ZX-2 Ultrasonic Thickness Gauge is a basic dual-element, fixed-velocity ultrasonic thickness gauge requiring no special training to operate. Calibration is done with the press of a button; either scroll to a known material velocity, or select a common material from a list of material types in the ZX-2. Dakota Ultrasonics ZX-2 is ideal for those who test only a few different materials on a regular basis.

The ZX-2 by Dakota comes with 8 internal preset velocities of common materials, plus 2 velocities which the user can set. Features including extruded aluminium body with nickel-plated aluminum, gasket-sealed end-caps sealed membrane keypad that is water and petroleum resistant to IP65  protection rating. The multi-function LCD display features large, easily-read digits, as well as feature icons, and bar graph to indicate stability of readings. Back-light settings include on, off, and auto, which causes the display to illuminate only when the ZX-2 is measuring or receiving an echo, as well as three brightness settings to suit the user and environment.

Ultrasonics make it possible to measure material thickness when access is available only to one side of the material being measured. The Dakota ZX-2 Ultrasonic Thickness Gauge uses pulse-echo technology to measure the thickness of a variety of materials between .0025 and 36.00 inches (depending on material type) with an accuracy up to + 0.001 inch (+ 0.01 mm) Use the ZX-2 to locate “blind” surface pitting, internal defects, and flaws in material. ZX-2 is a also used for corrosion inspection, to locate and evaluate corrosion, pits, cracks, and pockets of porosity in tanks, vessels, and pipelines.

In ultrasonic thickness measurement, sound waves are passed through the material being measured, and the length of time it takes for sound to travel through the material is the basis for the calculation of material thickness. The transducer is coupled to the surface to be measured using a non-corrosive, liquid couplant between the probe tip and the surface, to enable the sound signal to pass through the material. Ultrasonic thickness measurement is suitable for a variety of materials including metals, plastics, and glass. (Some porous or irregular materials present challenges for UT measurement, and occasionally cannot be measuring using this technology.)

The user sets the desired velocity, if known, for the material being measured; or can select from 8 internally-stored commonly-measured materials. Dakota ZX-2 also allows for 2 programmable custom materials to be set for calibration of the gauge. Lock the gauge to continue measuring the same material over and over, without having to re-calibrate the instrument.

Dakota Ultrasonics ZX-2 is ideal for testing for corrosion and pitting, tank inspection, pipeline and tube inspection, boilers, glass and a wide range of other situations where the thickness of material or the presence and extent of deterioration or corrosion must be determined.

Features:

• Extruded aluminum body with nickel-plated aluminum, gasket-sealed, end caps. IP65 protection rating.
• Sealed-membrane keypad, resistant to water and petroleum products, with tactile-feedback keys
• Low-temperature, custom LCD display (- 22F /- 30C) with multi-function 7-segment, large digits, feature & function icons
• Selectable Backlight: on/off/auto, and selectable brightness (low, medium, high)
• Low-battery indicator
• Auto-off when battery is too low to operate the gauge reliably
• Bar graph indicates reading stability
• Dual-element transducers, 1 to 10 MHz frequency range, with locking quick-disconnect LEMO connectors, and 4 foot cable. *Custom transducers are available on special-order for unique applications
• Measuring range of 0.025 to 36.00 inches (0.63 to 914.4 mm), depending on material being measured and transducer type
• Resolution 0.001 inches / 0.01 mm
• Velocity range: 0.0120 to .7300 in/µs (305 to 18,542 m/sec)
• User-selectable metric or imperial units
• 8 factory-preset velocity settings for the following common materials:
  • Steel 4340
  • Stainless 303
  • Cast iron
  • Aluminum 2024
  • Plexiglass
  • PVC
  • Polystyrene
  • Polyurethane
  • plus 2 user-set custom settings
• Uses 2 1.5V alkaline, 1.2V NiCad, or 1.5V Lithium AA cells. Typically operates 45 hours on alkaline and 23 hours on NiCad
• Factory calibration certificate, traceable to NIST & MIL-STD-45662A
• 5-year, manufacturer’s warranty on gauges against defects in materials & workmanship
• 90-day manufacturer’s warranty on transducers, material or workmanship defects only

Other models of the Dakota Ultrasonic Thickness Gauges include ZX-1, ZX-3, and ZX-5.

Stone Tucker Instruments is able to recertify your Dakota Ultrasonics ZX-2 Ultrasonic Thickness Gauge.