Liquid Nitrogen Freezer LLNF-T2010

Introduction

Liquid Nitrogen Freezer is a single door unit, which is suitable to freeze the small amount of food. This liquid nitrogen cabinet freezer is made using food grade 304 stainless steel, thermal insulation. These freezers were designed using safety guidelines. It has special door seal design with an automatic heating system.

This laboratory freezers is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

This liquid nitrogen freezer is used in quick freezing of perishable food items such as fish, meat, fruits and vegetables, fast food items, dairy and fermented products.

Specifications

Type	Single door
Frozen capacity	About 100 kg per hour
Pallet dimension	400 × 600 mm
Effective volume	495 L
Working temperature	-190℃ to +121℃
Accuracy of temperature	± 3 ºC
Temperature uniformity	± 3 ºC
Max cooling rate	0–30℃/min (adjustable)
Material	Entire structure made of USU304 stainless steel
Power	1 kW
Pallet layers	10
Door opening direction	Side door
Insulation material	ultra-low-temperature insulation material with foaming technology; high thermal insulation performance ensuring food hygiene and safety
Freezing medium	Liquid nitrogen (customer provides liquid nitrogen & storage tank)
Power supply	380V, three-phase, 50Hz
Product Dimension	1350 × 900 × 1850 mm
Packaging Dimension	1500 × 1000 × 2100 mm
Net Weight	About 300 kg
Gross Weight	About 350 kg

Features

Small and compact in size

Temperature and cooling curve can be viewed on touch screen

Low power consumption

The temperature inside the cabinet reaches -150ºC within 5 minutes

FAQs

1. What are the key factors to consider when selecting this laboratory freezers for laboratory use?

When selecting this laboratory freezers, key factors include: 1) The instrument's precision and accuracy to meet experimental requirements; 2) Compatibility with the types of samples and applications you will be working with; 3) Ease of use and maintenance requirements; 4) Safety features to protect operators and samples; 5) Calibration and certification requirements; 6) Cost-effectiveness and long-term reliability; 7) Technical support and service availability from the supplier. Evaluating these factors ensures that the instrument meets your laboratory's specific needs.

2. How often should this laboratory freezers be calibrated to ensure accurate results?

It is recommended to calibrate this laboratory freezers at least once every 6-12 months under normal usage conditions. More frequent calibration (every 3-6 months) may be necessary if: 1) The instrument is used continuously for extended periods; 2) It is exposed to harsh environmental conditions (temperature fluctuations, humidity, dust); 3) It is used for critical applications requiring high precision; 4) The instrument has been moved or subjected to physical shock; 5) Calibration checks indicate significant deviations from standard values. Always follow the manufacturer's calibration guidelines.

3. What are the common maintenance procedures required for this laboratory freezers?

Common maintenance procedures include: 1) Regular cleaning of the instrument's exterior and sample contact surfaces to prevent contamination and ensure proper operation; 2) Inspection of moving parts (if applicable) for wear and lubrication as recommended by the manufacturer; 3) Replacement of consumable parts (filters, bulbs, reagents) according to usage guidelines; 4) Verification of performance parameters (temperature, pressure, voltage) regularly; 5) Storage of the instrument in a clean, dry environment when not in use; 6) Keeping a maintenance log to track service activities and identify potential issues early; 7) Following the manufacturer's specific maintenance schedule for optimal performance and longevity.

4. Can this laboratory freezers be used with different types of samples, and are there any compatibility considerations?

Yes, this laboratory freezers can be used with a variety of sample types, but compatibility considerations are important: 1) Check if the instrument's materials are compatible with the chemical composition of your samples (avoid corrosive or reactive substances that may damage the instrument); 2) Ensure that the sample volume and concentration are within the instrument's recommended range; 3) For biological samples, consider sterility requirements and potential cross-contamination risks; 4) For volatile or hazardous samples, ensure proper ventilation and safety precautions are in place; 5) Consult the manufacturer's documentation for specific sample compatibility guidelines, and perform compatibility tests with new sample types before regular use.

5. What should be done if the laboratory freezers malfunctions or produces inconsistent results?

If malfunctions or inconsistent results occur: 1) First, check the instrument's user manual for troubleshooting guidelines specific to the issue; 2) Verify that the instrument is properly calibrated and within its calibration period; 3) Inspect for obvious issues such as loose connections, damaged parts, or incorrect settings; 4) Clean the instrument thoroughly to remove any contamination that may affect results; 5) Repeat the experiment with a known standard sample to determine if the issue is with the instrument or the sample; 6) If the problem persists, discontinue use of the instrument to prevent further damage or inaccurate results; 7) Contact technical support or a qualified service technician for diagnosis and repair, providing details of the issue and any troubleshooting steps already performed.