-40°C Chest Freezer LCF-T2011

Introduction

-40°C Chest Freezer is a 270 temperature freezer, comes with -40°C of cooling performance and direct cooling method. Features microprocessor control and platinum resistor temperature sensors for -20 to -40°C of temperature control range. Equipped with branded compressor, fan and large-finned compressor, has manual defrost mode and R290 as refrigerant. Designed with spray cold rolled steel plate exterior and stainless-steel interior, has two-layer heat insulating foamed door with airbag-typed outer seal and rotating handle. Equipped with digital display, advanced alarm system and 110 mm insulation thickness, supports multiple protection functions to avoid arbitrary adjustment of operation parameters.

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

-40°C Chest Freezer is used for scientific research, cryogenic test on special materials, low temperature resistance test on biological materials, vaccines, biological products and military products etc. across research institutions, the electronic industry, the chemical industry, hospitals, the health & disease prevention system, laboratories in colleges & universities, military enterprises, etc.

Specifications

Cabinet type	Chest
Capacity	270 L
Temperature Range	-20 to -40°C
Ambient Temperature	16 to 32°C
Cooling Performance	-40°C
Cooling Method	Direct cooling
Defrost Mode	Manual
Refrigerant	R290
Climate Class	N
Controller	Microprocessor
Display	Digital display
Compressor	1 pc
Alarm System	High/Low temperature, Power failure, Low battery, Sensor failure
External Material	Spray cold rolled steel
Internal Material	Stainless steel
Coated Hanging Basket	1 pc
Insulation	110 mm
Casters	4
Door Lock with Key	Yes
Access Port	1 pc.Φ25 mm
Data Logging/ Interval/ Recording Time	/Record every 10 minute / 2 years
Backup Battery	Yes
Protection Function	Turn-on delay and stopping interval protection function, Keyboard lock function and Password protection function
Power Supply	221 to 240 V, 50 Hz
Rated Current	1.8 A
Internal Dimension (W×D×H)	1019×465×651 mm
External Dimension (W×D×H)	1245×775×929 mm
Packaging Dimension (W×D×H)	1332×810×975 mm
Net Weight	77 kg
Gross Weight	85 kg

Features

270 L capacity comprised ultra-low temperature freezer, high-quality refrigeration system

-40°C of cooling performance and direct cooling method, fast and uniform cooling

Microprocessor control and platinum resistor temperature sensors, high-precision control

-20 to -40°C of temperature control range, adjustable temperature range as per requirement

Branded compressor, fan and large-finned compressor, high-efficient refrigeration

Manual defrost mode and R290 as refrigerant, energy efficient and environment friendly

Spray cold rolled steel plate exterior and stainless-steel interior, low maintenance

Two-layer heat insulating foamed door with airbag-typed outer seal and rotating handle

Digital display, convenient setting and monitoring of different parameters

Advanced alarm system, ensures safe and reliable operation with stable performance

Multiple protection functions to avoid arbitrary adjustment of operation parameters

High-efficient, stable and reliable unit with high-performance vacuum insulation material

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.