Freezers, Chest, Cryogenic Storage Freezer, Thermo Scientific
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Freezers, Chest, Cryogenic Storage Freezer, Thermo Scientific
Cryogenic Storage Chest Freezers
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.
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 inch (12.7cm) foamed-in-place closed-cell, CFC-free urethane insulation
- Access port, 1 inch (2.54cm) diameter, with cap
- Recessed heavy-duty swivel casters
- 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.
| |
R204-225 |
| Backup Systems |
LN2 Optional |
| Access Security |
Key lock |
| Chart Recorder |
7-day Optional |
| Data Outputs |
4-20mA, dry contacts - stancard |
| Control |
Push Button LED |
| Capacity |
6.8 cu.ft. (193L) |
| Exterior Dimensions (L x W x H) |
29 x 58 x 42.75 inch (73.7 x 147.4 x 108.6cm) |
| Interior Dimensions (D x W x H) |
19 x 32.5cm x 26.5 inch (48.3 x 59.7 x 67.4cm) |
| Plug Type |
P6 |
| Temperature Range |
-150°C |
| Electrical Requirements |
208/230V / 60Hz / 23A |
| Interior |
Painted Steel |
| Lid |
Heavy-duty counterbalanced lid with integrated keyed lock and insulated sublids |
| Operating Modes |
Standard Operation |
| Smart View Compatibility |
Smart-Vue Compatible |
| Setpoint Security |
Not Available |
| Voltage Compensation |
Buck/Boost |
| Weight |
775 lb. (351kg) |
| Water Cooled |
Not available |
| Holds |
144 boxes |
| Insulation |
Polyurethane Foam |
| Shipping Weight |
825 lb. (374kg) |