-40°C Freezer
Direct-cooling -40°C freezer with 0.1°C temperature accuracy and microprocessor control for reliable storage of biological samples and temperature-sensitive reagents in research environments.
| Automation Level | semi-automated |
| Temperature Accuracy | 0.1°C |
| Temperature Uniformity | ≤4°C |
| Temperature Stability | ≤4°C |
| Capacity | 58L |
| Temperature Range | -15~-40°C |
The -40°C Freezer provides controlled low-temperature storage for biological samples, reagents, and temperature-sensitive materials in research environments. The system operates within a temperature range of -15°C to -40°C with 0.1°C accuracy and microprocessor control for consistent thermal conditions. Available in multiple capacity configurations to accommodate varying laboratory storage requirements.
The direct-cooling refrigeration system utilizes international-grade compressors and copper tube heat exchangers for reliable thermal performance. LED display and integrated alarm systems provide real-time monitoring of temperature conditions, door status, and system faults. Manual defrost operation and polyurethane cyclopentane foam insulation ensure efficient thermal management in laboratory settings.
How It Works
The freezer employs a direct-cooling refrigeration system utilizing vapor compression technology with international-grade compressors. The refrigerant circulates through copper tube heat exchangers, transferring thermal energy from the storage chamber to the external environment. Microprocessor control continuously monitors temperature sensors and modulates compressor operation to maintain the set temperature within ±0.1°C accuracy.
Polyurethane cyclopentane foam insulation provides thermal barrier properties to minimize heat transfer and maintain temperature stability. The system maintains temperature uniformity within ±4°C throughout the storage chamber through optimized air circulation patterns. LED display provides real-time temperature monitoring, while integrated alarm systems detect temperature deviations, door status changes, and system faults.
Features & Benefits
Model
- BIO-BDF-40V58
- BIO-BDF-40V90
- BIO-BDF-40V268
Automation Level
- semi-automated
Temperature Accuracy
- 0.1°C
Temperature Uniformity
- ≤4°C
Temperature Stability
- ≤4°C
Research Domain
- Analytical Chemistry
- Cell Biology
- Clinical Diagnostics
- Microbiology
- Pharmaceutical QC
Capacity
- 58L
Temperature Range
- -15~-40°C
Power/Voltage
- 290W
Weight
- 58kg
Weight
- 127.87 kg
Dimensions
- L: 42.0 mm
- W: 43.6 mm
- H: 38.0 mm
Comparison Guide
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Temperature Range | -15°C to -40°C with 0.1°C accuracy | Entry-level models often limited to -20°C to -30°C ranges with ±1°C accuracy | Extended temperature range provides flexibility for diverse sample types requiring specific storage conditions. |
| Temperature Uniformity | ±4°C throughout storage chamber | Basic units may exhibit ±8°C to ±10°C variation | Improved uniformity prevents localized temperature variations that could compromise sample integrity. |
| Control System | Microprocessor control with LED display | Mechanical thermostats with analog displays | Digital control provides precise temperature regulation and real-time monitoring capabilities for laboratory documentation requirements. |
| Alarm Integration | Temperature, door status, and system fault monitoring | Limited alarm functions or audio-only alerts | Comprehensive monitoring protects valuable samples during unattended operation and provides early fault detection. |
| Insulation System | Polyurethane cyclopentane foam insulation | Standard polyurethane or fiberglass insulation | Enhanced insulation properties improve energy efficiency and temperature stability during extended operation. |
This system offers extended temperature capability to -40°C with 0.1°C accuracy and comprehensive alarm monitoring. The microprocessor control and LED display interface provide digital precision and real-time monitoring for critical sample storage applications.
Practical Tips
Verify temperature accuracy monthly using certified reference thermometers placed at multiple locations within the storage chamber.
Why: Independent temperature verification ensures microprocessor control maintains specified accuracy throughout the storage volume.
Perform manual defrost when ice buildup exceeds 6mm thickness on evaporator surfaces to maintain heat transfer efficiency.
Why: Excessive ice formation reduces cooling capacity and increases energy consumption while potentially affecting temperature uniformity.
Allow samples to pre-cool gradually to prevent thermal shock and maintain consistent chamber temperature during loading.
Why: Gradual temperature transition protects sample integrity and minimizes temperature fluctuations that could affect other stored materials.
Check door seals for damage if temperature recovery time increases or alarm frequency rises unexpectedly.
Why: Compromised door seals allow warm air infiltration, forcing the cooling system to work harder and potentially compromising temperature stability.
Maintain temperature logs even with alarm systems to document storage conditions for regulatory compliance and sample traceability.
Why: Written documentation provides backup records and demonstrates consistent storage conditions for critical research materials.
Ensure adequate ventilation around the unit and avoid storage in confined spaces to prevent heat buildup from condenser operation.
Why: Proper airflow prevents overheating of refrigeration components and maintains optimal cooling efficiency.
Setup Guide
What’s in the Box
- Main freezer unit
- Power cord
- User manual and documentation
- Temperature monitoring log sheets (typical)
- Adjustable storage shelves (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering parts and labor with comprehensive technical support for installation and operational guidance.
Compliance
References
Background reading relevant to this product:
What is the temperature recovery time after door opening?
Temperature recovery depends on ambient conditions and door opening duration, but the microprocessor control system with direct-cooling refrigeration typically restores set temperature within 15-30 minutes for brief access periods.
How frequently should manual defrost cycles be performed?
Defrost frequency depends on ambient humidity and door opening frequency, but typically ranges from weekly to monthly intervals. Monitor ice buildup on evaporator coils to determine optimal defrost scheduling.
Can the unit maintain temperature during power outages?
The insulated chamber provides thermal mass for temporary temperature maintenance, but duration depends on ambient temperature and thermal load. Consider uninterruptible power supply (UPS) for critical sample protection.
What alarm conditions trigger notifications?
The integrated alarm system monitors temperature deviations beyond set thresholds, door ajar status, and system fault conditions including compressor failures or sensor malfunctions.
Is external temperature monitoring compatible?
The LED display provides internal monitoring, but external data logging systems can typically be integrated through temperature probe access ports if present, or wireless monitoring solutions.
What maintenance procedures are required?
Regular maintenance includes manual defrost cycles, condenser coil cleaning, door seal inspection, and temperature calibration verification using certified reference thermometers.
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