National Lab laboratory freezer ProfiFrost PFU1630WN
The National Lab ProfiFrost PFU1630WN laboratory freezer is a reliable and compact freezer specially designed for laboratories and research facilities. Thanks to its maintenance-free cooling system and silent cooling, it is an extremely efficient solution when low vibration and noise levels are crucial. Compared to similar high-performance refrigerators - such as the Hettich HKT 200 freezer - this model also scores points with its low-vibration compressor and explosion-proof interior. Anyone who requires precise temperature control over a wide range will prefer this freezer due to its consistent reliability.
Performance features and special features
This laboratory cooler combines modern, quiet compressor technology with excellent thermal insulation. Thanks to the optional low and high temperature alarm, temperature-sensitive samples, substances and reagents can be ideally protected. In addition to the potential-free contact, which can be linked to a remote alarm system, there are additional alarm functions such as a door alarm and a memory for MIN/MAX values.
Essential features at a glance:
- Temperature range from -10 °C to -30 °C for flexible, application-specific storage.
- Robust construction with galvanized, white-coated sheet steel on the outside.
- Ex interior without electrical ignition sources for increased safety.
- Electronic controller with digital display for precise temperature control.
- Self-closing doors with lock and interchangeable door hinge.
- Maintenance-free cooling system with low-noise and low-vibration operation.
Alike the Liebherr LGT 1720 laboratory freezer, this appliance can also be integrated into existing documentation and monitoring systems via its RS 485 interface. This allows users to log temperature curves and create analyses.
Storage and dimensions
The interior offers a net volume of 130 liters. Three drawers and an additional basket make it easy to store a wide variety of samples safely and according to type. The dimensions have been selected so that the appliance can be integrated flexibly and in a space-saving manner, even in smaller laboratories:
- External dimensions (W×D×H): 600×615×820 mm
- Internal dimensions (W×D×H): 475×450×660 mm
- Depth with door open: 1190 mm
- Gross weight: 42 kg (shipping weight: 51 kg)
In addition, the model is equipped with two rear transport castors and height-adjustable front feet, which makes it easier to relocate or make fine adjustments. Manual defrosting supports precise control of the cooling system and reduces the risk of icing with long-term care.
Energy efficiency and safety
The appliance consumes an average of 0.9 kWh of energy per 24 hours, which is very economical for a laboratory freezer in this performance category. The refrigerant used is R600a, which does not contain CFCs or HCFCs and is therefore less harmful to the environment. At the same time, the explosion-proof interior guarantees an extremely low risk potential for sensitive substances such as isopropanol, ethanol or other highly flammable reagents.
A visual and audible alarm function warns of deviations from the target temperature. The device has a potential-free contact for further signals. This allows an external signaling chain (e.g. to plant security) to be connected if required. It therefore meets central safety requirements that are essential for many laboratories today.
Certifications and standards
The freezer meets all current quality and safety requirements that are set out in standardized European regulations. Users in pharmaceutical and biotech companies benefit in particular from the validatable processes that this design enables. This means that GMP-compliant processes can be easily implemented.
Application examples
- Safe storage of sensitive cell cultures in biotechnology
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- Storage of blood plasma and vaccines in medical facilities.
- Long-term storage of reference samples and reagents for quality assurance laboratories.
- Temporary storage of highly flammable solvents in explosion-proof indoor areas.
FAQs
How is the temperature monitored?
Continuous measurements are available via an electronic controller with digital display. Visual and audible alarms provide information in the event of deviations.
Is external monitoring possible?
Yes. The device can be connected to a telecommunication or monitoring system via the potential-free output.
How complex is the maintenance?
The appliance uses a maintenance-free compressor and manual defrosting, which means that only regular cleaning is recommended to maintain performance.
Can the appliance be integrated into a documentation system?
The integrated RS 485 interface makes this possible. Users can record temperature values directly and evaluate them with software support.
Which substances are particularly suitable for this device?
Fireproof interiors enable the storage of potentially highly flammable liquids such as ethanol or isopropanol. Basically, it is designed for all samples that require a cooling temperature of up to -30 °C.
Conclusion
The freezer offers a sophisticated safety concept and a high degree of reliability. With its silent cooling, explosion-proof interior and extremely low energy consumption, it is one of the most versatile options on the market. Laboratories in particular that require constant and safe temperature control for sensitive samples will benefit from this appliance. At the same time, flexible alarm systems and features such as the RS 485 interface enable comprehensive monitoring and documentation - ideal for anyone looking for a precise and sustainable solution for their laboratory.
