CAUTIONS FOR USAGE

1.Sometimes the alarm may not operate at the time of first start-up. This does not mean malfunction. It is due to the complete discharge of incorporated battery. 2-day continuous operation of the freezer is necessary to charge the battery fully.

2.The digital thermometer of medical freezer is designed to display the temperature of the center part of the freezing compartment. Although the thermometer sometimes displays a temperature a little bit higher than the actual temperature of the center part, it gradually approaches the real temperature.

3.An access port to take out the measuring cable in the case is provided on the back or left side wall of the freezer. Be sure to replace the cap and heat insulator after take out cable or, the inside temperature cannot complete down, and frost may accumulate outside the port surroundings.

4.Do not use brushes, acids, benzine, thinners, powdered soap. Polishing powders, or hot water for cleaning, as they can deteriorate the painted surfaces and parts made of plastic and rubber. Be especially careful not to wipe plastic or rubber parts with volatile solvents such as benzine. Wipe up the neutral detergents with a wet cloth when used.

5.Frost will accumulate on the inside walls of the freezer during use. Then remove the frost with the spatula provided or a similar tool. Do not defrost inside walls using a knife or ice pick. There are pipelines for cooling behind the walls. Be careful not to damage the lines as this could cause a breakdown. Also, do not make a hole in the wall for installation of attachments.

6.The freezing temperature is different at each position inside the case of this freezer. The set temperature represents the temperature at the center of the inside case. The refrigerated articles put on the highest position part, are refrigerated higher than the set temperature, while those put on the lowest part are refrigerated lower.

7.Do not put too many warm articles into a freezer compartment before enough operating. Put items in a few at a time after the freezer compartment temperature has cooled to at least -20oC.

8.In the case of high ambient temperature, the cabinet front may heat up after the freezer starts to operate first. However, this does not denote a malfunction. It is due to heater or hot gas piped around the unit frame to prevent frost and ice sticking around the cabinet.

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Sanyo MDF-U333, MDF-U537 instruction manual
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MDF-U333, MDF-U537 specifications

Sanyo's MDF-U537 and MDF-U333 are high-performance laboratory freezers designed for the secure storage of sensitive biological samples, medical supplies, and other critical materials. These models are renowned for their reliability, energy efficiency, and advanced technologies.

The Sanyo MDF-U537 offers a temperature range of -20°C to -86°C, making it versatile for various applications, including long-term storage of vaccines, enzymes, and other temperature-sensitive materials. With a capacity of 528 liters, it is spacious enough to accommodate numerous samples while maintaining organized storage. This model features a dual-layer door system that ensures minimal temperature fluctuations when accessing stored items.

One of the standout features of the MDF-U537 is its advanced microprocessor control system, which provides precise temperature management. This system is complemented by a digital display that allows for easy monitoring of internal conditions. Additionally, the freezer is equipped with an alarm system that notifies users of any temperature deviations or door openings, ensuring the integrity of the stored samples.

On the other hand, the Sanyo MDF-U333 is a more compact model, boasting a capacity of 330 liters, which makes it suitable for smaller labs with limited space. The MDF-U333 also maintains a temperature range of -20°C to -86°C, ensuring optimal storage conditions for a variety of biomedical applications.

Both models incorporate eco-friendly refrigerants, aligning with modern sustainability standards while maintaining energy efficiency. The insulation used in both the MDF-U537 and MDF-U333 is designed for superior thermal performance, minimizing energy consumption and operational costs.

Moreover, these freezers come equipped with a comprehensive monitoring system that includes temperature logging features, allowing users to maintain compliance with industry regulations. The robust build quality ensures durability, making them reliable choices for long-term, continuous use in demanding laboratory environments.

In summary, the Sanyo MDF-U537 and MDF-U333 are exceptional laboratory freezers characterized by their energy-efficient design, extensive storage capacities, and advanced temperature management technologies. These models represent the forefront of reliable sample preservation in the biotechnology and medical research fields, offering peace of mind for researchers and laboratory personnel.
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