Advanced Sampling Extraction Methods
In recent years, new methods have focused on enhancing sample technology to improve not only their ease of use but also their ability to obtain a representative sample. One such example is the Ultra Clean Vacuum Device (UCVD), which was invented and developed by Giuseppe Adriani of Mecoil Diagnosi Meccaniche in Florence, Italy.
Also known as the SureSample through its U.S. distributor, Analysts Inc., this advanced bottle is designed to hold a pre-established vacuum. With the vacuum intact during distribution, the bottle is nearly void of all moisture and contaminants at an ultraclean level.
Once the bottle’s nozzle is attached to a sample tube and the other end inserted into a sample valve, the nozzle is turned open, allowing the vacuum to independently draw fluid into the bottle to the required level. This action is possible for practically any viscosity, with higher viscosity fluids only requiring longer draw times.
This method also may eliminate the need for a manual vacuum pump during sampling from any lubricating system, even non-pressurized systems. Thus, a sampling technician potentially could have numerous samples drawing into multiple bottles at the same time while being confident that the samples aren’t being contaminated in the process.
If sampling within a sump cavity, a stainless steel pilot tube of various lengths can be joined with the valve to allow the sample’s flow to be originated from a representative location within the sump, i.e., a “live-zone” location. Possible sample locations for a splash/bath-lubricated machine are shown above.