Thermo Scientific™ Cryogenic Storage Chest Freezers

Description

Maintain uniform temperatures of -140° and -150°C (safely below the -130°C glass transition temperature of water).

Maintain uniform temperatures of -140° and -150°C (safely below the -130°C glass transition temperature of water) with Thermo Scientific™ Cryogenic Storage Chest Freezers. These freezers offer mechanical cryopreservation for long-term biological storage and are safer and more convenient than LN₂ systems.

Features:

• Top-to-bottom temperature uniformity is dramatically improved when compared to LN₂ vapor.
• Cell viability is improved as biologically relevant, thermally driven reactions are not known to occur.
• System offers manual defrost.

Refrigeration System:

• Exclusive mixed refrigerant autocascade with a single, orbital air-cooled compressor
• Downfeed evaporator
• High-capacity air-cooled condenser with dual condenser fans
• Washable condenser filter

IntrLogic™ Microprocessor Control System:

• Touchpad data entry with digital display of all functions
• Key-operated main power and alarm switch for setpoint security
• Setpoints adjustable in 1°C increments
• Independent operating temperature and high/low limit alarm functions

Alarm System:

• Power failure or temperature deviation triggers audible and visual warning.
• Automatic Incident Monitor identifies temperature deviation beyond alarm setpoints.
• System includes adjustable safety alarm with automatic, continuous charge battery backup and digital battery indicator.
• System includes touchpad alarm test function RS-232 data port with system software.
• Exterior alarm contacts for connection to remote monitoring system.

Monitoring System:

• Lifeguard compressor protection to monitor performance and automatically adjust to internal and external conditions
• Extreme Ambient Alert that warns if room temperature can affect performance
• Voltage Boost Indicator that advises of low source voltage below safe parameters and indicates voltage boost system is activated
• On-board power monitoring with digital readout of incoming line voltage
• Built-in surge suppressor
• "Clean Filter" indicator

Construction:

• Low-profile design for easy access to inventory
• Heavy-gauge steel cabinet with high-impact powder paint finish
• Heavy-duty counterbalanced lid with integrated keyed lock and independent sublids
• Double-seal lid gaskets minimize frost buildup
• Minimum 5″ (12.7cm) foamed-in-place closed-cell, CFC-free urethane insulation
• Access port, 1″ (2.54cm) diameter, with cap
• Recessed heavy-duty swivel casters

Ordering Information:

Uses standard Thermo Scientific inventory racks and fiberboard boxes, available separately. 208/230V model comes with P6 plug. 380V and 220/240V models require a hardwire connection.

Specifications

• Type: Mechanical Cryogenic
• Capacity (English): 6.8 cu. ft.
• Capacity (Metric): 193 L
• Temperature Range: -150°C
• Cabinet Material: Heavy-gauge Steel
• Insulation: Polyurethane Foam
• Interior: Stainless Steel
• Certifications/Compliance: CE
• Style: Chest
• Condenser Type: Air Cooled
• Control Type: Push Button LED
• Defrost: Manual
• Lid: Heavy-duty counterbalanced lid with integrated keyed lock and insulated sublids
• Model: Thermo Scientific
• Water Cooled: Not available
• Dimensions (D x W x H) Interior: 19 x 32.5 cm x 26.5 in. (48.3 x 59.7 x 67.4 cm)
• Dimensions (L x W x H) Exterior: 29 x 58 x 42.75 in. (73.7 x 147.4 x 108.6 cm)
• Monitoring Options: Alarm, Recorder
• Access Security: Key Lock
• Chart Recorder: 7-day Chart Recorder (Optional)
• Data Outputs: 4-20mA, dry contacts - stancard
• Operating Modes: Standard Operation
• Setpoint Security: Not Available
• Backup Systems: LN2 Optional
• Smart View Compatibility: Smart-Vue Compatible
• Amperage: 23 A
• Plug Type: P6
• Voltage: 208/230 V
• Electrical Requirements: 208 - 230 V 60 Hz
• Frequency: 60 Hz
• Voltage Compensation: Buck/Boost
• Compressor: Air-cooled
• Shipping Weight (English): 825 lb.
• Shipping Weight (Metric): 374 kg
• Weight (English): 775 lb.
• Weight (Metric): 351 kg
• Holds: Boxes (144)