X. Warnings and Notes
1. NEVER START ULTRASONIC OUTPUT WHEN THE PROBE TIP IS EXPOSED IN
THE AIR
2. The apparatus swithes the power supply without industrial frequency
transformer. Don’t randomly touch after opening the generator housing to
avoid electric shock.
3. The apparatus does not need to warm up and should be grounded well
when being used.
4. Use it in an environment free from moisture, sunshine and corrosive gases.
5. Be sure the platform is tightly fixed to the rod, and the ultrasonic probe is
in liquid and not touching the walls of the sample vessel.
6. The liquid temperature will increase rapidly due to the cavitation effect
during crushing. The user should pay attention to the temperatures for
different cells. It is suggested that the user adopt multiple short time
crushing (not longer than 5s each time) and ice bath cooling.
7. It is practice-proven that multiple short-ime operations, working time 1-2s
and interval time 1-2s, have better effects than continuous long-time
operations. The long interval time can be set to avoid the heating of liquid.
Additionally, continuous long-time operations are subject to no load
operations to shorten the apparatus service lifetime.
8. The horn end will become rough due to cavitation corrosion after being
used for a period of time. Use oil stone or rasper to smooth it. Otherwise,
it will influence the working effects.
9. In general, the volume of homogenization media should be 3 to 10 times
the net volume of the solid sample. Pre-chopping the sample into pieces
less than 1 mm in cross-section will significantly decrease the time of
homogenization.
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