CHART ULTRADOSER 500S, Руководство пользователя

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WARNING! Your UltraDoser
®
500S LN
2
Dosing System may be fed by a vacuum insulated pipe
system designed to contain pressurized, ultra-cold cryogenic liquids. These systems should only be
worked on by trained personnel to avoid serious injuries such as freezing, oxygen deficient atmosphere
and extremely high pressures.
WARNING! Any configuration which allows a trapped volume of cryogenic liquid or cold gas must
be protected by a pressure relief valve. As the cold liquid/gas gains heat, the contents will expand and
increase in pressure. A section not protected by an over-pressure relief valve will experience extremely
high pressures and significant safety concerns.
WARNING! Over pressurization of bottles (or containers) can occur while using Chart’s UltraDoser
500S system potentially bursting the bottles (or containers). Proper calibration of the UltraDoser 500S
ensures optimum nitrogen doses to avoid over pressurization. Be sure to remove any bottles (or
containers) that receive more than its proper LN
2
doses before sealing.
WARNING! If you are at all unsure of how to safely work on this system, STOP and contact Chart
immediately at +1 408.371.4932.
CAUTION: As with any cryogenic system, it should be observed that any non-insulated piping can get
extremely cold and should not be touched by exposed skin. If the system requires maintenance, it should be
shutdown and allowed to warm up.
Strict compliance with proper safety and handling practices is necessary when using a cryogenic system.
We recommend that all our customers re-emphasize safety and safe handling practices to all their employees
and customers. While every possible safety feature has been designed into the system and safe operations are
anticipated, it is essential that the user of the cryogenic system carefully read to fully understand all
WARNINGS and CAUTION notes listed in this safety summary and enumerated below. Also read the
information provided in the Safety Bulletin for Inert Gases following this Safety Summary. Periodic review of
the Safety Summary is recommended.
WARNING! Nitrogen vapors in air may dilute the concentration of oxygen necessary to support or
sustain life.
Exposure to such an oxygen deficient atmosphere can lead to unconsciousness and serious injury, including
death.
CAUTION: Before removing parts or loosening fittings, empty the UltraDoser 500S system of liquid and
release any vapor pressure in a safe manner.
External valves and fittings can become extremely cold and may cause painful burns to personnel unless
properly protected. Personnel must wear protective gloves and eye protection whenever removing parts or
loosening fittings. Failure to do so may result in personal injury due to the extreme cold and pressure in the
system.