Specification Sheet

23
Maximum Capacity
Designed to maximize sample capacity with minimum footprint,
CryoExtra accepts both vertical and horizontal racks. Thermo
Scientific cryogenic racking solutions are designed for the
vessel’s storage configuration, further maximizing capacity.
Our 93,000 sample capacity model has the same footprint as
our 80,600 sample capacity model, saving valuable floor space.
Uniform Temperatures
Minimal top to bottom temperature variation due to vacuum
insulated stainless steel vessel.
Stable Lid Open Temperature
Innovative lid and neck design ensures stable temperature even
during lid openings, conserving liquid nitrogen and maintaining
temperature.
Advanced Temperature Monitoring Controller
Microprocessor controller monitors temperature using
thermocouples accurate to +/- 1°C. Other features: user-
adjustable alarm setpoint with full alarm mute options; built-in
remote alarm contacts and easy to read level indicator.
Automated Fill and Level Monitoring
Four thermistors monitor both the fill and control LN
2
levels to
ensure proper levels. Self diagnostics ensure reliable sensor
functioning. Monitor features: current temperature display, high
temperature alarm, LN
2
level and alarms, sensor fail alarm and
filling status.
Hot Gas Bypass
Keeps samples safe from warm nitrogen gas during a fill cycle,
improving sample security.
Convenient Work Space
A stainless platform near the vessel opening provides a flat
surface for ergonomic rack placement and speeding sample
recovery. All units feature integral, folding steps and interior trap
door for sub-carousel access.
No LN
2
Re-Supply Test Result
(Model CE8140)
The insulative properties of the CE8140 are
demonstrated through a no LN
2
re-supply test.
The CE8140 is filled with LN
2
to the
high fill set point and then, the LN
2
is
removed. The temperature is then monitored
using 16 sensors, monitoring how long it
takes to reach two benchmark temperatures:
-185ºC and -135ºC. As shown in the figure,
the CE8140 was able to keep the average
internal temperature below -185ºC for seven
days. The tank was also able to keep the
temperature below -135ºC for 21 days.
Interior trap door
SAMPLE STORAGE
|
Auto-Fill LN
2
Lid Open Test Result
(Model CE8140)
The lid open test is a measure of the ability
of a unit to maintain temperature under an
extreme lid opening event, as well as the
ability to recover once the lid is re-applied.
As the data shows, the CE8140 was able
to maintain average temperatures for
all probes at or below -150ºC over the
48 hour course of the test. Once the lid
was re-applied, it took four hours for the
CE8140 to reach an average temperature
of -185ºC.