Refrigerator-Freezer Combinations Large Refrigerator-Freezer Combinations
Large refrigerator-freezer combinations combine a cooling zone and a freezing zone in one compact freestanding unit, suitable for laboratories, clinics, pharmacies, and research facilities that need to store both refrigerated and frozen samples, reagents, or preparations. These units enable space-saving organisation of different temperature ranges without requiring additional individual devices. They are primarily used where floor space is limited and there is a high storage demand for different temperature zones.
Falls keine Produkte für diese Kategorie gefunden wurden, findet
vermutlich gerade ein Datenbankupdate statt.
Bei Fragen stehen wir gern zur Verfügung: 06301 / 794830
Large Refrigerator-Freezer Combinations for Laboratory and Research
Refrigerator-freezer combinations are designed for professional use in laboratories, clinics, pharmacies, and research facilities. They consist of two separate temperature zones – an upper or lower cooling zone and a freezing zone – offering flexible storage for various samples, reagents, medications, or biological materials in a single unit. The large version is particularly suitable for areas with high storage requirements and limited floor space.
Design and Functionality of Refrigerator-Freezer Combinations
A refrigerator-freezer combination features two separate cooling circuits or a common circuit with separate temperature control. The cooling zone typically operates in the range of 2 to 8 °C, while the freezing zone reaches temperatures of -18 to -25 °C. Large models offer increased usable volume and allow for the simultaneous storage of larger batches of different materials. Separate temperature control prevents cross-contamination and ensures stable storage conditions.
Areas of Application in the Laboratory
In laboratories, clinics, and pharmaceutical facilities, large refrigerator-freezer combinations are used to store sample material, reagents, enzymes, antibodies, vaccines, or diagnostic test kits. The cooling zone is used for the short-term storage of temperature-sensitive substances, while the freezing zone allows for the long-term storage of samples or reserve stocks. In diagnostics, biotechnology, and research, these units are indispensable when different temperature ranges are required simultaneously.
Selection Criteria for Large Refrigerator-Freezer Combinations
When selecting a unit, consider the usable volume, the division between cooling and freezing zones, energy efficiency, and available floor space. Large models offer more storage capacity but require corresponding space and, if necessary, sufficient room ventilation. Features such as digital temperature controllers, acoustic and optical alarms, and data logging capabilities are important for professional laboratory operation. The choice between static and forced-air cooling affects temperature distribution and frost formation.
Difference from Small Refrigerator-Freezer Combinations
While small refrigerator-freezer combinations are designed for confined spaces or lower storage requirements, large models offer significantly more usable volume and are designed for central storage areas, sample storage, or larger workgroups. The larger design often allows for better interior organisation with multiple drawers, shelves, or storage compartments. Large units are also frequently more robustly constructed and designed for continuous operation under higher loads.
Accessories and Monitoring
For the safe operation of refrigerator-freezer combinations in the laboratory, monitoring systems such as USB data loggers, WLAN data loggers, or alarm relays are recommended. These continuously record the temperature in both zones and provide alerts in case of deviations. Data loggers document temperature profiles for validation purposes and GMP-compliant processes. External alarm systems inform about door openings, power failures, or temperature rises, significantly increasing operational safety.
Frequently Asked Questions about Large Refrigerator-Freezer Combinations
The following answers typical questions that arise during the selection and operation of large refrigerator-freezer combinations in the laboratory.
What are large refrigerator-freezer combinations used for in the laboratory?
They are used for the simultaneous storage of refrigerated and frozen samples, reagents, medications, or biological materials in one unit. Typical applications are found in laboratories, clinics, pharmacies, diagnostics, and research facilities where different temperature ranges are required.
Which size is appropriate for which requirement?
Large refrigerator-freezer combinations are suitable for central storage areas, larger workgroups, or facilities with high sample throughput. For smaller laboratories or limited floor space, small refrigerator-freezer combinations are the better choice. The decision depends on the available space, the number of samples to be stored, and the desired division between the cooling and freezing zones.
Which temperature ranges are achieved in the two zones?
The cooling zone typically operates between 2 and 8 °C, and the freezing zone between -18 and -25 °C. These temperatures correspond to common requirements for the storage of temperature-sensitive substances and frozen samples in the laboratory. Both zones are usually separately controllable.
What is the difference between large and small refrigerator-freezer combinations?
Large models offer significantly more usable volume, better interior organisation with more drawers or shelves, and are designed for higher storage capacities and continuous operation. Small refrigerator-freezer combinations are more compact, space-saving, and designed for lower storage requirements or decentralised locations.
Which accessories are useful for safe operation?
USB data loggers, WLAN data loggers, and alarm relays continuously monitor the temperature in both zones and document profiles for validation purposes. They alert in case of deviations, door openings, or power failures and significantly increase operational safety, especially for sensitive samples or GMP requirements.
How do I receive a quote or advice on refrigerator-freezer combinations?
For professional advice on large refrigerator-freezer combinations, you can contact specialist dealers or manufacturers. Information regarding usable volume, division of temperature zones, floor space, energy efficiency, and desired equipment should be provided to receive a suitable offer.
What should be considered during commissioning and installation?
Large refrigerator-freezer combinations require a level, stable surface and sufficient distance from the wall for air circulation. After transport, the unit should stand for several hours before being put into operation so that the refrigerant can settle. The temperature control should be checked and calibrated if necessary before loading to ensure stable storage conditions.