Troubleshooting techniques

Gans, M., Systematize Troubleshooting Techniques, Chemical Engineeiing Piogiess, April 1991, 25-29. (Equipment malfunction examples)... 

Many standard diagnostic and troubleshooting techniques were tried, including temperature optimization for the feed section of the barrel and changes to the... 

A troubleshooting technique that will help in determining what species have fouled or scaled a membrane is a mass balance around the membrane. A species is selected, such as iron or aluminum, and a mass balance is taken around the RO system. The amount of that species on the feed side should be equal to that amount in the permeate plus the concentrate. Keep in mind that this is conservation of mass not concentration (there is no conservation of concentration). So, to calculation the amounts, the user will have to take the concentration and multiply by the flow rate. This will generate an amount per unit time that... 

Most floppy drive problems result from bad media. For some reason, people will not admit that a 10-cent floppy disk can (and will) go bad over time. Personally, I do not use a floppy disk more than twice—once to write to it and once to read from it. (Of course, being a computer geek, I ve got other options for long-term storage.) Your first troubleshooting technique with floppy drive issues should be to try a new disk. 

The next section concentrated on hardware troubleshooting techniques. We discussed the POST routine (what it is and how it warns you of problems), motherboard problems, hard disk issues, keyboard and mouse problems, display system troubleshooting, BIOS issues, power supply problems, and a few other miscellaneous hardware problems. 

I n addition to learning about the many common problems and troubleshooting techniques for Windows, you should know about the different resources that Microsoft provides with Windows to troubleshoot Windows. These resources are the best to use if you have no other troubleshooting tools available. They can also be used as a starting point for troubleshooting a computer. The built-in Windows tools that the A+ exam tests you on, include ... 

With its wealth of information and rare focus solely on the subject, this book provides practical tools to help readers better understand these and other problems and then develop optimal solutions and strategies. It discusses mechanisms of organic acid antimicrobial action and facilitates troubleshooting techniques regarding problems with preservatives and microorganisms. It also shows how to predict the effectiveness of a preservation method or application. 

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