Description

 

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 in. (12.7cm) foamed-in-place closed-cell, CFC-free urethane insulation
• Access port, 1 in. (2.54cm) diameter, with cap
• Recessed heavy-duty swivel casters

Specifications

Temperature Range	-150°C
Certifications/Compliance	CE
Capacity (English)	6.8 cu. ft.
Capacity (Metric)	193 L
Holds	144 boxes
Electrical Requirements	230 V 50 Hz
Voltage	230 V
Frequency	50 Hz
Amperage	23 A
Plug Type	No plug; Unit must be hardwired to building for safety
Dimensions (L x W x H) Exterior	29 x 58 x 42.75 in. (73.7 x 147.4 x 108.6 cm)
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)
Weight (English)	775 lb.
Weight (Metric)	351 kg
Shipping Weight (English)	825 lb.
Shipping Weight (Metric)	374 kg
Insulation	Polyurethane Foam
Interior	Painted Steel
Access Security	Key Lock
Data Outputs	4-20mA, dry contacts – stancard
Smart View Compatibility	Smart-Vue Compatible
Backup Systems	LN2 Optional
Chart Recorder	7-day Chart Recorder (Optional)
Water Cooled	Not available
Lid	Heavy-duty counterbalanced lid with integrated keyed lock and insulated sublids
Operating Modes	Standard Operation
Style	Chest
Setpoint Security	Not Available
Voltage Compensation	Buck/Boost
Model	Thermo Scientific
Type	Mechanical Cryogenic
Control Type	Push Button LED