728L ultrafreezer with opaque door, 1248 x 975 x 1995 mm

728 liter ultra-freezer with a cascade refrigeration system based on two-stage cycles coupled together through a heat exchanger. It has exceptional thermal insulation articulated through a multilayer seal that minimizes cold loss. In this way, it is able to remain stable between -40℃ and -86℃, making it an ideal model for storing laboratory samples that require extremely low temperatures for their preservation.

The equipment has been designed with materials that combine powdered steel with AISI 304 stainless steel. It has a 7" touchscreen on the outside where the device's climate control can be performed and includes a system that alerts the user if it detects that the thermal conditions could compromise the quality of the stored content. Similarly, it is capable of identifying and notifying power supply, probe, or thermostat failures. In addition, it has a backup battery that is activated to monitor the interior temperature in emergency cases.

The device has been manufactured taking into account the standards set by ISO9001 and ISO13485 standards and has CE verification guarantee.

General features
- Stainless steel shelves: 3
- Cooling method: direct cooling
- Defrosting: manual
- Temperature range: -40℃/ -86℃
- Ambient temperature: +10℃ / +32 ℃
- Display: 7" LCD touchscreen
- Wall pass-throughs: 2/25 Mm
- USB port
- Remote alarm connection
- Communication port: MODBUS RS485
- Exterior material: white powdered steel
- Interior material: AISI 304 stainless steel
- Wheels: 4
- ISO9001 and ISO13485 certifications
- CE verification

Refrigeration system
- Refrigerant: HC
- Temperature controller: Microprocessor
- System: Cascade system
- Sensor: PTC 100
- Compressor: 2
- Capacity: 728 liters
- Insulation: 120 Mm
- Racks: 18 (5 x 4) + 6 (6 x 4)
- Drawers: 500
- Samples: 50,400

Alarms
- High/low temperature
- Power supply failure
- Probe failure
- Thermostat failure
- Filter change verification
- Low battery
- Condenser cleaning
- High ambient temperature
- Door ajar
- Backup battery: 72 hours (only for monitoring temperature)
- USB failure alarm

Electrical data
- Voltage and frequency: 220V 50Hz/60Hz
- Power: 710 W
- Current: 8.99 A
- Energy consumption: 14.89 W/h per 24 h
- Noise: 53 dB

Dimensions
- Packaging dimensions: 1335 x 1010 x 2200 mm
- External dimensions: 1248 x 975 x 1995 mm
- Internal dimensions: 963 x 571 x 1350 mm
- Volume: 2.97 m3
- Net Weight/Gross Weight (Kg): 380/400

Optional accessories (not included and with additional cost)
- LN2 CO2 Backup System
- Data Logger
- Graphic Recorder
- Racks and Boxes
- Gloves