BD FACSCelesta Flow Cytometer User’s Guide56
Changing the Bal seal
Introduction This topic describes how to replace the Bal seal.
The sample injection tube Bal seal is a ring thaft forms a seal with
the sample tube and ensures proper tube pressurization.
When to change
the Bal seal
Over time, the Bal seal becomes worn or cracked and requires
replacement. Replacement is necessary if a proper seal is not
formed when a sample tube is installed on the SIP. Indications that
a proper seal has not formed include:
• The tube will not stay on the SIP without the tube support
arm.
• When the tube is installed and RUN is pressed on the
cytometer, the RUN button is orange (not green).
Caution
Procedure To replace the Bal seal:
1. Remove the outer sleeve from the sample injection tube by
turning the retainer counter-clockwise. Slide the outer sleeve
down and off of the sample injection tube.
Caution: Biohazard! Cytometer hardware might be
contaminated with biohazardous material. Wear suitable
protective clothing, eyewear, and gloves whenever
cleaning the cytometer or replacing parts.
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