FTS LYOSTAR 3, Руководство оператора

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Liquid Nitrogen Trap FTS Systems LyoStar™ 3
24 Rev 006, 01/14
© SP Scientific 2014
Cleaning
The accumulation of condensed vapors may result in a loss of vacuum, which typically
indicates that defrosting is required. Check the trap by isolating the trap
(
i.e. , closing the inlet and outlet valves) and breaking vacuum to the trap, which is
accomplished by removing the drain plug from the drain hose located under the
stainless steel vessel. Carefully slide the sensor out of the lid. Loosen the black thumb
screws and lift the lid. Attempt to lift the center well slightly. If the well does not move
easily, your trap may require defrosting.
To clean your liquid nitrogen trap:
Make sure that the trap is offline and that the level controller has been 1.
powered off.
Remove any liquid nitrogen left in the center well. 2.
Place an appropriate container under the trap. 3.
Remove the drain hose plug. 4.
Carefully raise the sensor. 5.
Note: The sensor tube material is fragile. Use care when raising and lowering the level
sensor.
Loosen the black thumbscrews and raise the lid up the shaft. Do not lift the lid 6.
off the top of the shaft.
Retighten the thumbscrews to hold the lid in the elevated position. 7.
If the trap is frozen, allow it time to defrost. You may accelerate condensate 8.
melting by pouring hot water into the inner reservoir.
Note: Under no circumstances should thawed condensate remain in the trap.
Reservoir
Loosen thumbscrews
and raise lid.
Slide the sensor out