Liebherr SFF laboratory freezer with plastic inner container
The Liebherr SFF laboratory freezer with plastic inner container was specially developed for research and industrial environments to reliably store temperature-sensitive substances such as enzymes, pharmaceutical products, reagents or vaccines. This solution impresses with its precise temperature control, robust design and well thought-out safety concept. Laboratories with high quality requirements in particular benefit from the combination of energy efficiency, integrated monitoring and flexible application options.
Reliable freezer technology for demanding laboratories
The freezer is characterised by first-class temperature stability and offers an adjustable temperature range of up to -9 °C to -35 °C, depending on the model. Static or dynamic cooling helps to ensure an even distribution of cold. All of this reduces the risk of unwanted temperature fluctuations and ensures compliance with important standards.
Important technical key data at a glance:
- Temperature range: between -9 °C and -35 °C (depending on model)
- Refrigerant: R-290 for sustainably efficient cooling
- Noise level: 49 dB(A) to 55 dB(A)
- Power consumption: 2 A at 220-240 V
- Cooling technology: static or dynamic design
- Certifications: IEC 61010-2-011 and DIN 13277
- Interior: plastic coating for easy cleaning
- Doors: self-closing at 90° and with replaceable seal
In addition, the appliance is designed to work reliably in environments with temperatures from +10 °C to +35 °C. Thanks to its robust construction and high-quality steel outer panelling, the solution is also durable and immune to external influences. Depending on the version, height-adjustable feet or castors facilitate integration into a wide range of laboratory structures.
Innovative safety and monitoring functions
In order to store samples and materials safely, the appliance integrates numerous safety mechanisms. One special feature is the +2 °C SafetyDevice, which keeps the interior temperature constant if the temperature threatens to fall below the critical value. Visual and acoustic alarms are also included as standard, which warn immediately in the event of a power failure or unusual temperature fluctuations. The alarm system can be individually configured to provide customised support for laboratory processes.
Many models are equipped with a potential-free contact, which facilitates connection to existing monitoring solutions in the laboratory. Some variants also have an integrated USB interface and a data logger that records temperature and alarm profiles over several years. These records not only ensure the documentation obligation, but also make it possible to quickly access past events and derive appropriate measures.An integrated SmartMonitoring system is available as standard on some variants and can be retrofitted as an option on others. It allows real-time monitoring via LAN or WLAN. In the event of deviations, messages are immediately sent to stored email addresses, SMS numbers or telephone contacts, which minimises the risk of failure and ensures continuous laboratory operation. Safety-relevant functions such as the self-closing door at 90° or the mechanical lock also contribute to the high level of storage security.Concrete application examples
- Long-term storage of enzymes: Proteases or restriction enzymes in particular require constant low temperatures in order to maintain their activity for a long time
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- Preservation of vaccines: Certain vaccines are very sensitive to temperature fluctuations and benefit from a stable storage environment.
- Cooling of pharmaceutical formulations: Medicines and intermediates that need to be stored below -9 °C find a controlled environment here.
- Storage of reagents: The optional data logger and alarm systems ensure that important reagents are always kept in optimum condition.
FAQs
How does the alarm work in the event of a power failure?
The alarm is triggered visually and acoustically; on some models, an integrated rechargeable battery immediately takes over the power supply for the alarm system. Once the power supply is restored, both the time of failure and the highest temperature reached are documented.
How often should the door seal be checked or replaced?
As the seal is replaceable, it is advisable to check it regularly for cracks or deformation. If necessary, it can be replaced in just a few minutes without special tools.
Can the device be integrated into existing monitoring solutions?
Yes. The freezer can be integrated into many monitoring systems via potential-free contacts and optional or integrated LAN/WLAN interfaces. If available, a SmartModule can also be retrofitted.
How is the data logged in the appliance?
Certain models have an integrated data logger that records measured values and alarm histories in a resource-saving manner. This data record can be read out and further analysed via a USB interface.
Conclusion
With its comprehensive safety and monitoring functions, this freezer fulfils the highest requirements for reliability and flexibility in the laboratory sector. The modern cooling technology ensures stable temperature distribution, while alarm systems, data recording and SmartMonitoring guarantee seamless control. Thanks to the IEC 61010-2-011 and DIN 13277 certifications and the ability to integrate the system into existing infrastructures, it is ideal for research laboratories, hospitals and industrial applications. The reliable design, user-friendly interior and energy-efficient operation make it a durable solution that users in demanding environments can rely on.
