Olympus Magna-Mike 8600 - Magnetic Target Balls

DMTA-10026-01EN, Rev. D, January 2015
Basic and Multipoint Calibration 69
4.5.2 Magnetic Target Balls
Magnetic target balls are used to achieve the maximum thickness measurement range
possible. Using a magnetic target ball can also allow the instrument to measure
thicker materials while using a smaller diameter ball for applications that have both
thicker geometry and contours constraints. The Magna-Mike 8600 can use two
magnetic target balls of different sizes. Selecting which size magnetic target ball to use
greatly depends on the application geometry and the maximum thickness to be
measured. In general, you should try to use the largest diameter target ball that will
roll or move freely for the application. The ball must be able to make contact with the
inside surface in cornered or contoured areas. Also keep in mind that magnetic balls
will tend to compress soft materials and the smallest target ball that meets the
maximum thickness capability should be used to limit the compressing of soft
materials.
Magnetic 4.76 mm (3/16 in.) diameter target ball (Olympus P/N: 86TBM3 [U8771039]):
Useful for applications that require a greater maximum thickness than the standard
4.76 mm (3/16 in.) target ball and where the 6.35 mm (1/4 in.) diameter ball will not
roll freely in the contours of the application. The maximum thickness range of the
4.76 mm (3/16 in.) magnetic target ball is 19.05 mm (0.750 in.) with the standard wear
tip.
Magnetic 6.35 mm (1/4 in.) diameter target ball (Olympus P/N: 86TBM4 [U8771040]):
Useful for applications that require the largest thickness possible and application
where a 6.35 mm (1/4 in.) diameter ball will roll smoothly in any corners or contoured
areas. The maximum wall thickness that can be measured with the 6.35 mm (1/4 in.)
Magnetic target ball is 25.4 mm (1.00 in.) with the standard wear tip. However, the
ability to measure intricate corners is limited, and soft materials are more likely to be
compressed or scratched using this target ball.
To avoid the risk of injury or death, observe the following safety precautions:
• DO NOT swallow or place magnetic target balls
in body.
• DO NOT place magnetic target balls
near electronic equipment.
• DO NOT place magnetic target balls
near people with pacemakers.
• DO seek medical attention if magnets enter the body.
WARNING