Error Fixing
If errors occur, generally the following items should be checked first :
• Is the mains power supply available and are the voltages according to
specification?
• Is the power line sufficient when loaded?
• Is the transducer connected correctly, are the generator and transducer
matched properly (frequency, power) ?
• Is the HF-cable wired correctly and not damaged?
• Is there any condensation inside transducer or HF-cable?
• Is the generator cooled sufficiently? Do the fans operate properly?
• Is the ambient temperature according to the specified range?
• Is the bath temperature according the specified range?
Due to some physical reasons, the transformation behavior of PZT-stack
from electrical energy to mechanical energy will change completely with
rising temperature. Above the limit, the PZT-stacks might be destroyed.
• Is the cleaning bath condition good for ultrasonic operation?
Heavy bath turbulences, high flow rate or vacuum may cut the sonic
waves. For these reasons the transducers are not able to dissipate the
ultrasonic energy completely.
Also reflections may be generated from cross-talk in the transducers or by
the device under clean, which reflect the electrical energy back to the
generator modules. With this, the generator module may stop the
ultrasonic operation due to over load condition detected.
• Is the failure intermittent or consistent through out the operation ?
• Is it a new application and the application before operate fine ?
Because of the complexities of the ultrasonic systems and for the product
responsibility, therefore only the manufacturer should do the repair of the
failed components.