28
Innova Ultra-Low Temperature Freezers
M1288-0052
User’s Guide
7
7
A
A
C
C
C
C
E
E
S
S
S
S
O
O
R
R
I
I
E
E
S
S
&
&
S
S
P
P
A
A
R
R
E
E
P
P
A
A
R
R
T
T
S
S
7.1 Accessories
A number of accessories are available for the New Brunswick Scientific range of
ultra-low temperature freezers. Contact your local NBS representative or
distributor for details.
7.1.1 CO
2
& LN
2
Back-Up Systems
These systems are available to temporarily protect the contents of the
freezer against the consequences of freezer or power failure. In an
emergency, the system can inject either carbon dioxide or liquid nitrogen
from a storage bottle. Carbon dioxide back-up systems will maintain
temperatures between -40°C and -70°C (subject to environmental
conditions) for a period of up to 48 hours, during which time the freezer
can be repaired. Liquid nitrogen back-up systems will maintain the freezer
temperature at -86°C.
CO
2
and LN
2
back up systems can be retrofitted by the user. Contact your
local NBS distributor for options available. Instructions are included in
the kit.
7.1.2 Racking
Systems
A very comprehensive set of aluminum racks is available. These are
designed to accommodate various sizes of boxes neatly, while giving
maximum packing density in the freezer. Custom-made racking may
also be available upon request.
7.1.3 Chart
Recorder
A chart recorder is available to provide a continuous record of the
temperature inside the freezer over a period of seven days. The record is
presented on a circular chart.
