-40°C Chest Freezer, Manual Defrost

The -40°C Chest Freezer is mainly used for scientific research institutions, ultra-low temperature experiments with special materials, electronics industry, chemical industry, military industry, university laboratories, bioengineering, offshore fisheries, etc.

-40°C Chest Freezer Specifications:

-40°C Chest Freezer Features:

1. Microcomputer control, real-time temperature display, temperature with 0.1°C increment .

2. High and low temperature alarm function, alarm temperature value can be set as required.

3. Inner chamber temperature is adjustable; Alarm temperature could be customized as requirements.

4. Built in adjustable stainless steel shelf, easy to use and to clean.

5. Food grade stainless steel inner chamber, safe and secure.

6. Heavy duty caster design, easy to move.

7. Safety door lock is designed to prevent random opening.

8. Wide voltage band design, suitable for 187V-242V AC voltage.

Refrigeration system

1. Ultra-thick foam layer and double-sealed door effectively protect freezer's internal temperature.

2. Cooling system is optimized for self-replication, and the imported compressor provides strong and efficient refrigeration capacity.

3. German EBM fan, stable performance and low noise.

Safety system

1. Audible and visible alarm: high and low temperature & sensor error alarm.

2. Multiple protection functions: frequent start-up protection, refrigeration system keeps running in case of sensor failure.

FAQ

How to defrost a chest freezer

1. Transfer Samples: Transfer all samples to a spare refrigerator or a dry ice/ice container for temporary storage. Never leave samples out of a low-temperature environment for an extended period.

2. Disconnect Power: Unplug the power cord to ensure safety.

3. Empty the Refrigerator: Remove all removable parts, such as shelves, drawers, and dividers. Leave the refrigerator door open to allow the ice to warm up and melt naturally.

4. Lay absorbent towels or a waterproof sheet on the floor and around the refrigerator to prevent water from spreading.

5. Depending on the thickness of the frost, this usually takes 4–12 hours (ultra-low temperature freezers may take longer). You can gently rinse the interior with warm water (never use hot water) to speed up the thawing process.

6. Dry thoroughly: Use a clean towel or absorbent cloth to dry the interior walls, door gaskets, and any standing water on the floor. Residual moisture will quickly refreeze.

7. Clean and disinfect: Wipe the interior with a neutral detergent or 70% alcohol, then dry it thoroughly. Be sure to avoid electrical components and ventilation vents.

8. Reinstall components: Wipe the shelves, drawers, and other parts dry before returning them to their original positions.

9. Restart the unit: Plug it back in and wait until the temperature drops to the set value before returning the samples (this usually takes 2–4 hours).