Next, physical properties tests measure the viscosity of your lubricant and identify other contaminants. Data from these tests also reflect the effects of system operating conditions on the lubricant. For hermetically sealed compressors, testing for dielectric strength measures the lubricant's current ability to withstand voltage without conductance. Filter debris evaluation to monitor system filtration for larger wear and corrosion materials. R134A conversion analysis insures sufficient mineral oil content has been purged from the system for successful operation.
Ferrographic analysis is the most precise way to examine and diagnose iron wear and corrosion.
The levels of these particles help calculate a relative wear severity index. Or, when consistent abnormal wear trend levels are detected, full analytical ferrography will extract ferrous particles for visual identification and evaluation. Special sampling cylinders can be purchased or leased for this critical maintenance activity. Analysts is one of the few organizations qualified to perform solutions analysis for absorption cooling syste ms . The file is 127 KB and contains two pages.