Natural Convection Constant Temperature Chamber (Standard Size) NC-860S

NC-860S natural convection constant temperature chambers simulate actual indoor ambient temperatures, offering precise temperature control and excellent temperature uniformity. Unlike forced convection chambers, natural convection chambers generate natural convection conditions similar to a windless indoor environment, allowing for the understanding of a product's heat transfer characteristics under real-world use or stringent high-temperature conditions.

Main Purpose:

To simulate natural convection, airflow, and temperature control in a real-world environment.

Technical Principle:

The core design concept of the NC-860S natural convection constant temperature chamber is to "simulate the natural convection state of a windless indoor environment." Unlike traditional forced convection incubators that rely on fans to force air circulation, the NC-860S uses ceramic infrared heating technology, combined with a reflector, an isolation flow equalization mesh, and an insulated convection perforated plate, to achieve heat transfer through thermal radiation and natural convection. This design avoids interference from forced airflow on samples, making it particularly suitable for experimental scenarios sensitive to wind speed.

For example, in the biomedical field, cell culture requires avoiding disturbance or drying of the culture medium by airflow, while the windless environment of the NC-860S natural convection chamber ensures the stability of the culture medium surface, reducing experimental variables. In electronic component testing, windless conditions more realistically simulate the heat dissipation of products during actual use, avoiding test deviations caused by forced convection.

Realistic Environment Simulation

Windless natural convection design accurately simulates the heat dissipation conditions of electronic products in real-world usage environments, avoiding test deviations caused by forced convection.

Precise Temperature Control

Utilizing continuous power regulation technology, it achieves temperature control accuracy better than ±0.5℃, ensuring a stable and reliable temperature baseline.

Superior Temperature Field Uniformity

Using multi-channel zone temperature control technology, it achieves a standard deviation of ≤1.3℃ as verified by third parties, providing a highly consistent thermal environment.

 

 

Technical Parameters

 

Temperature Range: Ambient temperature +3℃~70℃, maximum temperature ≤70℃

Chamber Dimensions: Inner chamber dimensions: W860mm × D860mm × H1160mm; Outer chamber dimensions: W1020mm × D1250mm × H1650mm

Quality Standards: A 9-point temperature measurement report is included with the product. The standard deviation between the measured temperature at each point and the average temperature of the 9 points is <2℃.

Specified Test Temperature Points: 35℃, 40℃, 50℃, 60℃, and 70℃

Point Average Temperature: After the test chamber temperature reaches equilibrium, samples are continuously taken at the 9 specified temperature points for 10 minutes at a frequency of 10 seconds each. This average temperature is recorded as the point average temperature for that point.

Set Average Temperature: The average temperature of the 9 point average temperatures is then used as the set average temperature for the specified temperature range.

 

Main Structure Introduction

 

Test Chamber Material: 20mm acrylic glass

Door Dimensions: W834 × H1179

Lifting Platform: 380*230mm, effective lifting height 370mm, load capacity 100kg;

Heating Device: Ceramic infrared heating, equipped with a reflector, isolation flow equalization mesh, and insulating convection perforated plate.

Control Method: The chamber is divided into two zones, each with independent temperature control. Each zone has a temperature sensor, a temperature controller, and a heater. This ensures uniformity of the temperature field throughout the test chamber.

Lead-in Holes: Lead-in holes on both sides, 100mm in diameter.

Safety Protection Measures: Over-temperature protection, over-current protection, leakage protection.

Power Supply: AC220V/50Hz, 16A, 3.2kW

 

 

NC Series Natural Convection Chamber

 

Model	NC-860S	NC-860HT	NC-2600
Inner Dimensions	W860mm × D860mm × H1160mm	W860mm × D860mm × H1160mm	W1500mm × D1000mm × H1800mm
Outer Dimensions	W1020mm × D1250mm × H1650mm	W1020mm × D1250mm × H1650mm	W1590mm × D1430mm × H2150mm
Temperature Range	Ambient +3℃ ~ 70℃	Ambient +5℃ ~ 110℃	Ambient +3℃ ~ 70℃
Temperature Uniformity	Average temperature deviation of 9 points ≤ ±2℃	Average temperature deviation of 9 points ≤ ±2℃	Average temperature deviation of 9 points ≤ ±2℃
Chamber Material	Transparent acrylic plate, thickness 20mm	Transparent PC plate, thickness 15mm	Transparent acrylic plate, thickness 20mm
Heating Device	Quartz infrared heating	Quartz infrared heating	Quartz infrared heating
Lifting Platform	730mm × 500mm, effective lifting height 370mm	730mm × 500mm, effective lifting height 370mm	500mm × 1000mm, effective lifting height 370mm
Power Supply	AC220V / 50Hz, 16A single phase	AC220V / 50Hz, 36A single phase	AC220V / 50Hz, 27A single phase, Max Power: 6kW

 

Applications

 

The NC-860S natural convection chamber's applications cover multiple fields of scientific research and industry:

1. Electronic Component Testing: Suitable for thermal testing of computers, mobile phones, power supplies (PSUs), networking products, etc., simulating heat dissipation conditions in real-world usage environments.

2. Biomedical Experiments: Suitable for scenarios requiring strict temperature control, such as cell culture and chemical reagent storage, avoiding airflow interference with samples.

3. Materials Performance Research: Tests the thermal deformation of polymer materials and metal alloys at specific temperatures, ensuring data accuracy.

4. Food Quality Inspection: Precisely monitors temperature changes during food processing or storage to ensure food safety.

A car electronics company used the NC-860S to conduct high-temperature testing on its in-vehicle navigation system. The results showed that after 72 hours of continuous operation at 60℃, the internal temperature fluctuation was only ±0.4℃, verifying the product's reliability in real-world high-temperature environments.

 

Maintenance & Customization

 

The NC-860S natural convection chamber maintenance system emphasizes long-term stability:

Daily Cleaning: Wipe the enclosure with a soft cloth and mild detergent to prevent dust accumulation from affecting heat dissipation.

Sensor Calibration: Perform calibration every six months using a standard thermometer to ensure temperature control accuracy.

Non-standard Customization: Supports personalized adjustments to enclosure size, temperature range, number of partitions, etc., to meet special experimental needs.

Guangzhou Jingxiu Thermal Equipment Co., Ltd., provides a full-process service from pre-sales consultation, installation and commissioning to after-sales maintenance. Its ISO9001 quality management system certification and multiple national patented technologies provide users with quality assurance.

 

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True natural convection condition, Temperature uniformity report

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