FAQs - Frequently Asked Questions
1. Sometime I hear a squeal from the machine. What is happening?
This squeal is actually “standing waves”. It usually means the liquid is trapped with air bubbles and the water detergent has not “degassed”. Increasing the temperature or changing the liquid level or adding additional detergent all contribute the liquid “degassing”. Typical degassing time is approximately 10 minutes with detergent in the tank, ultrasonics at full power, and the pump off (if equiped). The squeal does not damage the machine it is just annoying.
2. Power Intensity Control does what, exactly? Is it a full range (0 - 1000W) adjustment?
The intensity control is controlling the power output of the generator, much like a volume control on a radio. It provides full control from 0-100%. Normally, the setting can be kept at 100%. For delicate parts, like thin aluminum the intensity is reduced to around 50-80%.
3. I am having trouble with a debate on Ultrasonic cleaning parts in a small rubbermaid tub that float in the wash tank filled with fluid and parts sealed. Will the sonics effect the parts the same as if you place them in the tank ?
I think you are talking about what we call the “double boiler” method in ultrasonic cleaning. If you take a container and float it on the surface of an ultrasonic tank, the ultrasonic energy will propagate into the container. One important consideration, however, is that rubber and most plastics will absorb sound so you will loose a significant amount of your sonics if you use rubber or plastic containers. The best material to use is stainless steel (like you find at salad bars) or glass (canning jars or pyrex work well).
4. How to verify if the solution is still useable? How many cycles should I use the solution before I replace a new one?
That is a good question. The answer may sound simple but it is pretty straight forward.You should use the solution as long as it is meeting your cleaning specs. Just because it turns dark and looks nasty doesn’t mean that it is exhausted. If you keep notes of how many parts you clean before you start noticing a drop in performance, you can establish a base line. A more precise method can be used for certain detergents. Brulin 815GD can be tested with a titration kit to tell you the exact condition of the mixture. It is a lot like using a pH testing kit. Brulin has the testing criteria in their specs. This is normally not recommended for small tanks as it is just as easy to drain and replace the small volume of liquid.
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