One of the main differences between bench-top/laboratory OES units and mobile OES units is the integration of a vacuum pump into the system. The vacuum pump works to remove atmospheric gases from the optical system while, at the same time, argon is injected to purge any remaining atmospheric gases in the area between the optical system and the excitation chamber of the sample stand.
Proper maintenance is critical for the longevity of a vacuum pump. On an annual or semi-annual basis the oil used to lubricate the pump components must be changed along with the alumina beads used to filter oil particulates. Premature wear occurs from excessive heat generated by the running pump; degraded oil viscosity and a clogged oil mist filter element are the leading cause of pump failures.
During operation, the fan shroud collects dust from the fan moving air over the pumps cooling fins. Removing the built up dust from the shroud increases the pumps cooling capacity and helps maintain the pumps functionality.
For more information on spectrometer service, contact the Verichek Service department today.