SP Scientific VIRTIS ADVANTAGE PRO, Operator'S Manual, Page: 33 / 78

Rev 002, 01/14 23
© SP Scientific 2014
Chapter
6
General Maintenance
Overview
Proper routine maintenance is the key to an efficiently operating lyophilizer with
minimal downtime, and will likely extend the life of your equipment, sub-systems and
components.
Maintenance should be performed a minimum of four (4) times a year. Since system
use and application varies from one facility to another, system maintenance may need
to be performed more frequently.
Vacuum System
Vacuum Pump
Note: AdVantage Pro series freeze dryers do not include a vacuum pump. However, SP
Scientific recommends the following protocols for vacuum pump maintenance. For additional
information, refer the
operator’s manual for your specific vacuum pump.
Clean oil is necessary for optimal vacuum and overall efficiency of the vacuum
system. Checking and changing the oil on a regular basis will greatly extend the life of
the vacuum pump. Check the vacuum pump oil after each freeze-dry cycle by draining
a small amount (~100 mL) from the pump drain line. Use a clear container to capture
the sample. Oil should be changed as needed.
When visually checking the oil, use the following guidelines:
Pale yellow or clear vacuum pump oil indicates good condition.

Dark vacuum pump oil indicates acid contamination.

Cloudy gray vacuum pump oil indicates water contamination.
