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1. Use low frequency probe like ZT-12 in our company.
2. When measuring the non-processing surface of some cast work-piece, high
viscosity couplant such as machine oil, grease or water glass is needed.
3. Calibrate the sound velocity with the standard block which shares the same
material and same measuring direction with the testing object.
6.
Care and Maintenances
6.1Power Source Inspection
During the usage of the gauge, the current battery power will be shown on
the display, when the battery power is low, the customer should change
the batteries promptly so that the measuring accuracy won't be
influenced.
The steps of changing batteries are as follow:
1.Turn off the gauge.
2.Loosen the screws on the back of the units and remove the battery cover.
3.Take out the batteries and replaces with new ones. Pay careful attention to
polarity.
Attention: The battery should be removed when the instrument is not in use
for a long time, because there is weak energy consumption even in the
shutdown state. After a long time, the gauge will not be turned on after
running out of power.
6.2Considerations
1. Please be cautious of the zero block's getting rust as couplant will be spread
on the surface of it when calibrating the gauge. After using, clean the zero
block. Avoid dripping sweat on the gauge in high temperature. Some grease
spreading on the surface of zero block is useful to avoid rusting if the gauge
will be spared for long. Wipe the grease out when reusing.
2. Be sure to avoid any caustic liquid such as alcohol or viscous fluids to
prevent corrosion to the cover and the display window, clean with water only.
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3.Avoid scratching the surface of the probe. A worn probe will cause unstable
readings,probe should be replaced.
6.3 Maintenances
Contact with the maintaining department of our company if the following
problems appears:
1. Components damage and the gauge fail to measure.
2. The display of the screen is disordered.
3. The measuring error is abnormally big in normal situation.
4. Keyboard operating is disordered or keyboard doesn't work.
As the UM-5 series ultrasonic thickness gauge is high-tech product, the
maintaining work should be made by professional operator and please avoid
self-acting operations.
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