The Dakota PMX Precision Thickness Gauge (PVX) measures material thickness ultrasonically with user-selectable resolution of either 0.01mm or 0.001mm, suiting work where very small thickness changes have to be resolved reliably. High-resolution thickness measurement is used in precision machining, stamping, aircraft, automotive and thin-plastics inspection, where confirming the thinnest point of a part to a fraction of a millimetre protects both safety and tolerance.

An auto find feature locates the detection points and adjusts the display to bring the waveform into view, and a high-speed scan takes 250 measurements per second so an inspector can sweep an area and hold the minimum value found. Display options include A-Scan with full waveform (RF) and rectified views, B-Scan cross-section, scan bar and combined views, plus differential mode and a minimum thickness alarm. A visual and audible alarm with high and low limit settings flags readings outside the chosen application tolerance.

Measurement ranges on steel run from 1.00 to 9144mm in Pulse Echo contact and from 0.152mm in Echo Echo modes, with several interface and echo-echo modes for thin sections. Gain is manual or automatic (AGC) across a 110dB range with adjustable damping, timing uses a precision TCXO with a single-shot 100MHz 8-bit digitizer, and 64 custom calibration setups transfer to and from a PC. The 4GB internal memory supports sequential and grid logging with bitmap capture, and single-element delay-line, pencil and contact probes cover 1 to 25MHz. Factory calibration is traceable to NIST and MIL-STD-45662A. Supplied by BAMR, South Africa's authorised Dakota distributor.