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In addition, different thicknesses in oxidation layers will cause different
errors. Make a reference piece from a batch of objects by measuring with
a micrometer or calliper, and using it to calibrate the instrument.
Abnormal Readout of Thickness
The operator should be able to identify an abnormal measuring reading.
Generally the rust, corrosion, pit, and internal defect of the material under
test will cause abnormal measuring readings.
Utilization and Selection of a Coupling Gel (R7950)
Coupling gel is used for transmitting high-frequency energy between the
ultrasonic gel and the material under test. If the type of gel or utilization is
wrong, or the utilization it will cause an error. For most applications a single
droplet of coupling gel coated evenly is sufficient. When measuring a smooth
surface use a gel with low viscosity (such as the coupling gel provided or
light engine oil). When measuring a coarse object surface, vertical surface or
top surface, use a gel with high viscosity (such as glycerin grease, consistent
grease, and lubricating grease, etc.).
Product Care
To keep your instrument in good working order we recommend the following:
• Store your product in a clean, dry place.
• Change the battery as needed.
• If your instrument isn't being used for a period of one month or longer
please remove the battery.
• Clean your product and accessories with biodegradable cleaner. Do not
spray the cleaner directly on the instrument. Use on external parts only.
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