Sonics VCX750 - Manual (Page 5)

CAUTION
LOW SURFACE TENSION LIQUIDS – ORGANIC SOLVENTS
The probes (solid or with a replaceable tip) are tuned elements that resonate at a
specific frequency. If the replaceable tip is removed or isolated from the rest of the
probe, the element will no longer resonate at that frequency, and the power supply will
fail. Unlike aqueous (water based) solutions which rarely cause problems, solvents
and low surface tension liquids are problematic. These liquids penetrate the
probe/replaceable tip interface, and force the particulates into the threaded section
isolating the tip from the probe.
When processing low surface tension liquids ALWAYS use a solid probe.