A broad variety of piezoelectric transducers, operating at given frequencies are utilized to generate sound when excited. Typically, a 5mhz frequency is standard on all Phase II Ultrasonic Thickness Gauges. Optional transducers are always available for a myriad of applications. The direct contact method of pulse/echo type ultrasonic thickness gauges requires use of a couplant. Propylene Glycol is common, but many other substances can be used. Easy to configure and use, many gauges today have the ability to retain memory, output to printers, PC's, and handheld portable devices. With the combination of an easy menu driven gauge and the data in memory, technician/operators have a world of technology at their fingertips to obtain highly accurate and cost effective measurements for all types of thickness applications. Technical Specifications Display type: Large 4-digit LCD Minimum display unit: 0.001" / 0.1mm Measuring range:: 0.040" - 8in. (0.1mm-200mm) in steel w/standard probe(other values depending on material) Lower limit steel pipes: Min. dia. 0.8in. x 0.1in. (20mm x 3mm) Display accuracy:: +-0.1mm Sound velocity range: 1640 - 29,527 ft/s (500 - 9000m/s) Operating temperature: 32-122 degrees F (-5 - 40 degrees C) Frequency: 5MHz Update range: 4Hz Power supply: 1.5v AA alkaline batteries (4pc) Battery life: Approx. 250 hours / battery set Dimensions: 4.9 x 2.6 x 0.9in. (161x 69 x 32mm) Weight: 0.7lbs (300g) Operating current: Table of basic sound velocity of various materials Material Sound velocity (m/s) Aluminum: 6260 Iron: 5900 Copper: 4700 Brass: 4640 Zinc: 4170 Silver: 3600 Gold: 3240 Tin: 3230 Glass: 2350
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