FTS Systems LyoStar™ II
Appendix A: Troubleshooting
Rev 012, 04/11
61
© SP Scientific 2011
Vacuum System Troubleshooting
If a vacuum leak is suspected in your freeze dryer we suggest that you do a
preliminary vacuum leak check of your system. Since your freeze dryer is composed
of two major vacuum components--the Product Chamber and the Condenser you will
need to check each system separately.
With no vacuum applied to the Product Chamber, open the chamber door and
1.
make a visual inspection of the shelf assembly for liquid leaks. A flashlight will
often prove beneficial when making this inspection. If a liquid leak is apparent
call SP Scientific Service.
If no liquid leaks are apparent, install a rubber stopper in the throat of the
2.
Product chamber, or close the isolation valve if the unit is equipped with one.
From the Manual screen start the condenser. When it reaches a temperature
3.
of –40° or lower, start the vacuum pump. Allow the system to stabilize at its
lowest specified temperature and vacuum. If the vacuum in the condenser is
20 mT or below the vacuum, troubleshooting has indicated that the vacuum
leak is in the product chamber and you should proceed to step 5. If adequate
vacuum is not achieved proceed with step 4.
Make certain that connections between the condenser and the pump are snug
4.
and that the drain port is closed. If these connections are snug and there is
still a vacuum leak contact the SP Scientific Service.
Place your finger on the vacuum control valve at the rear of the system. If
5.
there is a sucking sensation when your finger is on this valve port your
machine may have a faulty control solenoid valve. Call SP Scientific Service.
If you do not feel vacuum being pulled through the Vacuum Bleed Valve apply
6.
SNOOP or soapy water to the tray chamber door gasket. While applying this
liquid monitor the vacuum indicator for vacuum fluctuation. Watch the door
gasket for apparent leak sights. Should the front door gasket be "leaky" call
SP Scientific Service.
SNOOP
™
the KF and sanitary fittings on top of the product chamber.
7.
After completing all of the above steps, if the vacuum leak site has not been
8.
identified and the system still does not pull adequate vacuum please contact
the SP Scientific Service.
Summary of Contents for LYOSTAR II
Page 1: ...LYOPHILIZER OPERATOR S MANUAL FTS SYSTEMS LYOSTAR II STANDARD...
Page 2: ......
Page 6: ...iv Rev 012 04 11 SP Scientific 2011...
Page 29: ...FTS Systems LyoStar II Operating Your Lyophilizer Rev 012 04 11 21 SP Scientific 2011...
Page 38: ...Data Management FTS Systems LyoStar II 30 Rev 012 04 11 SP Scientific 2011...
Page 52: ...Optional Isolation Valve FTS Systems LyoStar II 44 Rev 012 04 11 SP Scientific 2011...
Page 58: ...Optional Cleanroom Configuration FTS Systems LyoStar II 50 Rev 012 04 11 SP Scientific 2011...
Page 66: ...General Maintenance FTS Systems LyoStar II 58 Rev 012 04 11 SP Scientific 2011...
Page 70: ...Appendix A Troubleshooting FTS Systems LyoStar II 62 Rev 012 04 11 SP Scientific 2011...
Page 71: ......
