CHART CryoDoser FleX, Product Manual

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3 Product Manual - CryoDoser FleX
™
LN
2
Dosing System
General
Thank you for your purchase of Chart Inc.’s CryoDoser
FleX
™
Liquid Nitrogen Dosing System. Chart has designed
and fabricated your system with attention to detail utilizing
the leading cryogenic technologies to ensure a highly
efficient and reliable system.
DO NOT
use this product in a manner not consistent with
the instruction outlined in this manual.
NEVER alter the design, or perform service that is not
consistent with the instructions outlined in this manual
without prior written approval from Chart.
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! Your CryoDoser FleX 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.
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.
Warning! Accidental contact of liquid
gases with skin or eyes may
cause a freezing injury similar to
a burn.
Handle liquid so that it will not splash or spill. Protect your
eyes and cover skin where the possibility of contact with
liquid, cold pipes and equipment, or cold gas exists. Safety
goggles or a face shield should be worn if liquid ejection
or splashing may occur or cold gas may exit forcefully
from equipment. Clean, insulated gloves that can be easily
removed and long sleeves are recommended for arm and
hand protection. Cuff less trousers should be worn over the
shoes to shed spilled liquid.
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.
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
containers can occur while
using Chart’s CryoDoser FleX
doser potentially bursting
the containers. Proper
calibration of the CryoDoser
FleX system ensures optimum
nitrogen doses to avoid over
pressurization. Be sure to
remove any containers that
receive more than the proper
LN
2
doses before sealing.
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.
Safety