The digital surface profile gauge will allow the peak to valley hight of blast cleaned surface to be accurately measuring in accordance with ASTM standard. caltechs digital surface profile gauge is highly useful and users friendly tool for paint,coating,and corrosion inspection.
The gauge is initially set to zero with the glass zero plate and the foot is then placed on the blasted profile.
The footsits on top of the peaks and the sharp stylus travels to the bottom of the valey,allowing the gauge to display the peak to valley height.
A number of measurement can be made and the average taken in addition the gauge can also be used to measure the effects of corrosion i.e. pitting and cavity depth etc.
Instrument is supplied with calibration certificate traceable to national standards.Surface profile gauges are also known as Needle Gauge.