GemOro Powerful Ultrasonics
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and make prompt arrangements for it to be returned for service. It is
always wise to save your original shipping container for transporting
your ultrasonic safely, but if it is not available, please be certain to
properly pack to protect your ultrasonic during shipping. If upon
examination of the ultrasonic by the factory, the factory determines
that the ultrasonic has been damaged due to misuse, this warranty
is void. (Please be aware that there are certain telltale signs of abuse
which will automatically void the warranty. Some user abuse signs are:
Holes in the tank, bluing of the metal and specific odors associated
with acid and ammonia exposure. Burn marks on the tank are signs that
an inadequate amount of water has been used in the tank. Pitting or
marks on the tank bottom are indications of items being placed on the
tank bottom. Otherwise, at the factory’s sole discretion, assuming the
ultrasonic is not replaced, this warranty is limited to only the cost of any
parts, materials, and labor required while repairing the unit. In the rare
case of an “out-of-box failure,” immediately contact your supplier, as the
unit may be returned for replacement.
All units are pre-tested to help insure your receipt of a top quality
ultrasonic. Pre-testing requires filling the ultrasonic with solution
and turning the heater on. This action may leave a slightly visible ring
or stain where the water level reached or where any water has touched
as well as a discoloration on the bottom of the tank from testing the
heater. This ring may show up on your unit anytime your water level gets
below its normal full level. This ring or stain in many instances may be
cleaned with many regular household cleaners or WD40, but can never
be completely removed.
Cavitation - Inertial cavitation occurs in the presence of an acoustic
field. Microscopic gas bubbles which are generally present in a liquid
will be forced to oscillate due to an applied acoustic field. If the acoustic
intensity is sufficiently high, the bubbles will first grow in size and then
rapidly collapse or implode at which point the gas within dissipates into
the surrounding liquid via a rather violent mechanism, which releases
a significant amount of energy in the form of an acoustic shock-wave
and as visible light. At the point of total collapse, the temperature of the
vapor within the bubble may be several thousand degrees Kelvin and
the pressure several hundred atmospheres. Ultrasonic cleaning baths
efficiently utilize the inertial cavitation of microscopic gas bubbles for the
cleaning of dirt from materials such as jewelry, medical instruments, etc.
When the cavitation bubbles collapse or implode they focus liquid
energy into very small volumes. Thereby, they create spots of high
temperature and emit shock waves which are the source of the noise
typically heard with ultrasonic cleaners. Although the collapse of the
