Thermo Scientific VF-F20-A, Operating Manual

Page: 148 / 240

7
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Maintenance and Service
Page 148 Integral Fraction Collector FT (VF-F20-A) Operating Manual
7.4 Routine and Preventive Maintenance
Optimum device performance, maximum uptime of the device, and
accurate results can be obtained only if the device is in good condition
and properly maintained.
7.4.1 Maintenance Plan
Perform the maintenance procedures in the table on a regular basis. The
frequency given in the table is a suggestion. The optimum frequency for
maintenance depends on several factors, such as the types and amounts
of samples and solvents used with the device.
Frequency What you should do...
Daily Inspect the flow connections for signs of leakage or blockage.
When you use buffers or salt solutions, flush the device thoroughly
after use with an appropriate solvent that does not contain buffers or
salts.
Check the liquid level of the needle wash and flush solvent reservoir.
Fill the solvent reservoirs with fresh liquid if required.
Purge needle wash system to fill the needle wash port with the fresh
needle wash liquid. During purging, the needle wash port is flushed
continuously until the fresh needle wash liquid is present.
In Chromeleon, purge the flush pump to remove potential air in flush
fluidics. During purging, the flush pump and flush buffer loop are
flushed continuously until the fresh flush solvent fills up the flush
system.
Check if particles, dust or algae are present in the needle wash liquid
and flush solvent.
Inspect vials and well plates that are stored inside the device for cracks
or defects. Clean up spills if necessary.
Regularly Inspect the flow connections for damage, such as cracks, nicks, cuts, or
blockage.
Replace the needle wash liquid and flush solvent in the needle wash
and flush solvent reservoirs regularly, approximately every 1 or 2
weeks. See
Needle Wash Liquid Guidelines (

Page 159) .