SP VirTis BenchTop 2K, Руководство оператора

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VirTis BenchTop 2K, 4K and 6K General Maintenance
Revision 004, 12/09
37
Quickseal Valves
VirTis BenchTop units come equipped with Quickseal valves. These valves should be
serviced at least once a year.
To service the Quickseal valves:
1. Remove the valves from their ports.
2. Twist and pull the white selector until it is dislodged from the black rubber
body.
3. Clean the valves thoroughly with isopropyl alcohol to remove grease and dirt.
4. Inspect each cleaned selector carefully for damage.
Note: Do not use broken flask adaptors, as they can damage the white selector.
5. If scratches or cracks are found, the selector part(s) should be replaced.
6. Apply a thin film of high vacuum grease to acceptable selector(s) and
reassemble.
Refrigeration System
The Air-Cooled Condenser
It is very important to keep the air-cooled condenser clean. This is where high-
pressure vapor from the compressor is converted to liquid refrigerant by rejecting the
heat gained from the vapor condenser into the ambient air. Reduced airflow over the
condenser can result in severely reduced performance and may shorten the life of the
compressor.
To maintain the air-cooled condenser and compressor:
1. Do not allow any paper products ( e.g. , paper towels, Kimwipes®) or cloth to
slip underneath the unit. These items will obstruct the airflow.
2. Always maintain at least four inches of clearance on all sides of the unit.
3. Maintain the room temperature at approximately 20 °C. Higher temperatures
may result in reduced performance and shortened compressor life.
4. Clean the fins on the bottom of the unit. Dust buildup may cause the unit to
malfunction.
Keep these fins
clean.
© SP Industries, Inc. 2009