Application: Accurately measuring remaining wall thickness of metal pipes, tanks, beams, ship hulls, and other structures through paint and similar coatings.
Background: In many industrial and petrochemical maintenance situations it is necessary to measure the remaining thickness of metal that is subject to corrosion through one or more coats of paint or similar non-metallic coatings. With conventional ultrasonic thickness gages, the presence of paint or similar coatings will cause measurement errors, typically increasing the apparent metal thickness by more than twice the thickness of the paint, due to the paint's much slower sound velocity. Two solutions to this problem are available: echo-to-echo measurement and Thru-Coat measurement.
Thickness gauges(ultra-sonic)
With its bright, very large, AMOLED display the Cygnus DIVE is simple to operate, providing accurate and reliable thickness measurements, underwater. Depth rated to 300 metres. Available with data logging, topside, HelmetView™ and twin crystal probe options. MSI™ Measurement Stability Indicator - this is a feature exclusive to the Cygnus. When using the DIVE Gauge in Single Echo mode, MSI™ confirms when a reading is stable by turning the thickness measurement numbers from red to yellow.
The Cygnus Underwater is the original diver held subsea multiple echo Ultrasonic Thickness Gauge. It was designed for use by divers undertaking subsea maintenance and surveys 3 decades ago… and today it is still the industry standard. The unit is depth rated to 300 metres and it provides an accurate metal thickness measurement through coatings up to 20mm thick. The bright LED display ensures easy viewing even in poor visibility conditions. The Underwater Thickness Gauge is supplied ready to use as a complete kit with 2 rechargeable batteries in a protective carry case.
Product Description Auto Calibration to assure the accuracy Auto linear compensation: this advanced software program enhances the precision by correcting the non-linear accuracy of transducer Use ▲ and ▼ keys to make a quick adjustment for the sound velocity/thickness and a quick recall to the stored data Coupling status indication: Observing the coupling icon to learn if the coupling is accomplished or not 10 thickness measurement storage and recall function available, which facilitated the height work or working in wild area Sound velocity measurement: with a given thickness by a sample hardware to measure the sound velocity, which avoid the further conversion or consultation of the table 12 sound velocity for different material which also adjustable Low battery indication Auto power off mode designed to conserve battery life More than 10000 times long life keys The unit has a special memory that retains all of its setting even when the power is off