The Dakota ZX Thickness Gauges are a range of ultrasonic corrosion thickness gauges for measuring remaining wall thickness on metal structures. The range spans seven models with increasing functionality, from the entry-level ZX1 (part number Z-300-0003) to the top of the range ZX6-DL (Z-306-0003). Inspectors use them to detect corrosion, pitting and wall loss on tanks, boilers, tubes, pipes and glass, where unchecked thinning can lead to leaks or structural failure.

All models measure with a dual element transducer over a 1 to 10 MHz frequency range, with 0.01mm resolution and a velocity calibration range of 305 to 18,542 m/s. Pulse-echo range runs from 0.63 to 914.4mm across the range, and the ZX6 and ZX6-DL add an echo-echo range of 2.54 to 152.4mm. Each Dakota ZX Thickness Gauge has a 12.7mm 4.5 digit LCD readable in sunlight, selectable mm or inch units, automatic V-path error correction and manual probe zero via an integrated disk.

Higher models add capability: high speed scan mode on the ZX3 upward, plus differential mode and limit alarm mode on the ZX5 upward. The ZX5-DL and ZX6-DL add data logging, storing 40 files of 250 readings each for 10,000 readings total. The extruded aluminium body suits harsh environments, and the range carries a 5 year manufacturer's warranty.

Factory calibration is traceable to NIST and MIL-STD-45662A. Supplied by BAMR, South Africa's authorised distributor.