Sonics VCF1500 - Manual (Page 13)

SECTION III – SERVICE INFORMATION
Your Ultrasonic Processor was designed to provide you with years of safe and
dependable service. Nevertheless, because of component failure or improper usage, the
possibility does exist that it might not perform, as it should, shut down due to an overload
condition or that it will stop working all together. The most probable causes for
malfunction are listed below and should be investigated.
The unit was plugged into an electrical outlet that provides a different voltage from
that required. See Electrical Requirements.
The probe and/or extender is not secured properly.
If the probe has a replaceable tip, the tip is not secured properly, or the probe has
been used with low surface tension liquids.
A fuse(s) has failed. If a fuse(s) has failed, proceed as follows:
1. Ensure that the POWER switch is set to OFF.
2. Replace the fuse(s).
3. Set the AMPLITUDE control to 50, the POWER switch back to ON, and depress
the TEST switch. With the probe in air (out of sample), the power monitor should
read below 20%. If the reading exceeds 20%, set the POWER switch to OFF, and
disconnect the probe from the converter.
4. Set the POWER switch back to ON and depress the TEST switch. If the power
monitor reads below 20%, the probe has failed or is out of tune due to excessive
erosion, and should be replaced, if the power monitor reads above 20%, either the
converter or power supply has failed and the complete Ultrasonic Processor
should be returned for repair.
5. If the Ultrasonic Processor stops working due to an overload condition set the
POWER switch to OFF, investigate and remedy the problem, then set the
POWER switch back to ON to reset the instrument.
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