These ultra-low temperature freezers maintain internal temperatures
as low as -86°C (-123°F) at an ambient temperature of +30°C (86°F). They
are ideally suited for use in hospitals and laboratories, in long-term
preservation and storage of blood, specimens and components and in
testing of various types.
Advanced Features
- Microprocessor temperature control system with digital temperature display
- Platinum resistance sensor in the temperature control for extra precision and reliability
- Power failure warning system with built-in audible and visual indicators
- Double-insulation polyurethane walls
- Easy-open/easy-close hinged doors.
- AT models also offer an automatic temperature recording mechanism and CO2 back-up system.
Panasonic produces several models of ultra-low temperature freezers that
can achieve and maintain refrigeration down to -86°C (-123°F) at an
ambient temperature of 30°C (85°F) Our wide selection and variety of
sizes and refrigeration capacities are suitable for uses such as
long-term preservation, testing of various types and frozen storage.
Designed Compressor for Ultra-Low Temperature
In the process of solving various technical problems to achieve and maintain ultra-low temperature, Panasonic designed a compressor for ultra-low temperature use.
An Ideal Freezing Environment by Means of a Double-Insulation Wall and "Hot Line"
In ultra-low temperature freezers, effective insulation is critical
since the temperature difference between the outside and the inner
compartment can be as high as 115°C.
- The insulation used in Panasonic ultra-low temperature freezers is
two layers of rigid, foamed-in-place polyurethane. The outer layer is
80mm thick and the inner layer is 60mm thick. They are placed together
to form a double-insulation wall.
- This design prevents the insulation layers from distortion and
cracking that might occur due to temperature differences inside and out
and creates the most efficient insulation material available today.
- Moisture condensation at the top edges of the cabinet due to
differences in temperature inside and out causes frost and icing
problems that may reduce heat insulation efficiency and obstruct door
movements. These problems are prevented by the "hot line" by means of
which hot gas from the higher temperature circuit is circulated through
the problem areas.
A Special Refrigerant and Oil to Maintain Stability and Reliability
To expand refrigeration capacity, a special compound refrigerant has been employed.
- This refrigerant relieves the refrigeration system of much of its
load by evaporating at a lower temperature level within the circuit.
- This contributes to the long life and dependability of the freezer unit as a whole.
Microprocessor Temperature Control with Digital Design
The temperature inside the freezer can be set and monitored easily
by means of an accurate microprocessor temperature control with digital
display. The thermostat utilizes a platinum resistor sensor that is
precise and extremely durable.
Built-in Temperature and Power Failure Alarms (Lamp/Buzzer)
In case of power failure or an irregular rise in temperature, a
rechargeable, battery-operated indicator lamp and alarm will be
activated.
Innovative Design
Overall operability and dependability are greatly enhanced by improved design details.
- Highly durable hinges are used to support the large door so both opening and closing are facilitated.
- Door handles are equipped with a latch-locking system, and the control panel comes with a transparent resin cover.
A Wide Range to Choose From to Suit Your Needs
Chest-type freezers can maintain relatively stable inner
temperatures. Moreover, their low-profile design makes the placement
and removal of contents very convenient.