Section 2 General Description - Thermo Scientific Thermo Dewars TY509X1 Mode D'emploi

General Description
Section 2
Mechanical failure is the major cause of problems associated with liquid
nitrogen storage vessels. The vessel necktube supports the full weight of the
inner vessel and the liquid nitrogen it contains. A side or corner blow to
the vessel causes the inner vessel to swing in a pendulum motion,
damaging the neck. Any storage vessel which has been exposed to an
accident, dropped, or lowered to hit on one corner, is more susceptible to
failure. Model 8127 has a support (top and bottom), but mishandling may
still cause problems. Carefully inspect your new Thermo vessel prior to
use. Check for signs of damage which may have occurred during shipment.
It is advisable to fill all new units with liquid nitrogen and watch the liquid
nitrogen loss rate for a few days. If there are any problems, call Technical
Services as soon as possible.
The on-line warranty registration address is listed on the front of this
manual. The unit should be registered within 30 days to make warranty
effective. This information must include the serial number located on the
handle of the unit.
Thermo Scientific Cryogenic Transfer Vessels 2-1