Ultra-Low Temperature Freezer
Built with a reliable, optimized two-stage cascade compression refrigeration system, commonly available environmentally friendly refrigerants, and advanced manufacturing processes, this ultra-low temperature freezer series is designed with full consideration for personnel safety, sample safety, equipment safety, and environmental safety. It is CE and RoHS certified.
Strict performance and service-life testing ensures safe, reliable, long-term operation.
Features
- Touch-screen interface with intuitive human-machine interaction for simple and convenient operation.
- 7-inch LCD touch-screen display.
- High-strength cold-rolled steel exterior with a powder-coated surface.
- 304 stainless steel interior.
- Height-adjustable, removable stainless steel shelf supports for easy chamber cleaning.
- High-density R245fa polyurethane integral foam insulation. The 126 mm thick foam layer has extremely low thermal conductivity for greater energy efficiency. R245fa is used as the foaming agent; it is environmentally friendly, highly flame-retardant, and non-flammable for greater safety.
- Ergonomically designed door handle with a long lever arm for one-handed opening.
- Mechanical lock and padlock hole.
- Reinforced shelves with a maximum load capacity of 50 kg per shelf.
- Backup battery that continues to power the display during a power failure.
- Internal and external pressure balance valve.
- Anti-condensation function.
- Foamed inner doors.
- Heavy-duty adjustable leveling casters.
Three-Level Permission Management
Multiple accounts with assignable permissions are available. According to equipment management requirements, controller operating permissions can be assigned to administrator, operator, and guest accounts at three different permission levels.
Data Recording and Remote Control
- Temperature records can be exported through the USB port on the panel.
- Remote alarm connection port.
- RS-485 interface.
Alarms and Protection
- Audible and visual alarms.
- Comprehensive alarms for power failure, high or low temperature, low battery, filter cleaning, sensor failure, refrigeration system failure, and excessive door-open time.
- Startup delay protection and compressor overheat protection.
- Complete records of all fault alarms and warning prompts, available for download and review.
- After a power failure, a fully charged backup battery displays the chamber temperature and power failure alarm information in real time for at least 48 hours.
- Self-diagnostic function: when a fault occurs, the corresponding fault is shown on the display.
Specifications
| Parameter | BDW-86L390 |
|---|---|
| Temperature Range [°C] | -50 to -86 |
| Nominal Volume [L] | 390 |
| Insulation Thickness [mm] | 126 |
| Exterior | Powder-coated steel plate |
| Interior | 304 stainless steel |
| Number of Inner Doors | 4 |
| Number of Shelves | 3 |
| Number of Compartments | 4 |
| Standard Cryogenic Racks [Cryogenic Boxes] | 16 [240] |
| Padlock Hole | Yes |
| Mechanical Lock | Yes |
| Data Recording | Yes |
| Backup Battery | Yes |
| Internal Temperature Sensor | Yes |
| Vacuum Release | Yes |
| Anti-Condensation Door Frame Heating | Yes |
| Controller Type | Touch screen |
| Refrigerant Type | HCFC-free |
| Voltage / Frequency [V / Hz] | AC 220 / 50 |
| Rated Power [W] | 1500 |
| Net Weight [kg] | 318 |
| High Condenser Temperature Alarm | Yes |
| Power Failure Alarm | Yes |
| Sensor Failure Alarm | Yes |
| Low Battery Alarm | Yes |
| Chamber High / Low Temperature Alarm | Yes |
| Door-Open Alarm | Yes |
| Noise [dBA] | ≤ 53 |
| Cool-Down Time [h] | ≤ 5 |
| Characteristic Point Temperature [°C] | -86 |
| Temperature Uniformity [°C] | ≤ 6 |
| Certification | CE, RoHS, Medical Device Registration Certificate |
Dimensions
| Model | External Width [mm] | External Depth [mm] | External Height [mm] | Internal Width [mm] | Internal Depth [mm] | Internal Height [mm] | Door-Opening Width [mm] | Door-Opening Height [mm] |
|---|---|---|---|---|---|---|---|---|
| BDW-86L390 | 909 | 797 | 1990 | 589 | 505 | 1310 | 1600 | 1603 |
Optional Items
- CO2 and LN2 backup system: Automatically switches to protect samples during a power failure.
- Second internal temperature sensor: Can be placed in different positions as required and can also be used to verify the main control sensor temperature.
- Cryogenic racks and boxes.
- Paper temperature recorder: Provides traceable data records.
- Voltage regulator: Provides stable voltage output when the supply voltage fluctuates abnormally between 160 V and 250 V.
- Remote camera monitoring: Allows users to monitor the freezer’s operating status anytime and anywhere.
- Facial recognition: Visual login strictly controls sample access permissions. Historical information for all users is traceable, with a record capacity of up to 100,000 entries.
- Temperature recorder: Plug-and-play operation for quick and convenient use. One-click generation of GMP-compliant PDF reports improves work efficiency.
