Product Details

Temperature Performance Parameters

Temperature Range: Common ranges include -20°C to 150°C, -40°C to 150°C, -60°C to 150°C, -70°C to 150°C, etc. Some special equipment may have a wider or narrower temperature range based on specific requirements.
Temperature Fluctuation: Typically required to be within ±0.5°C. High-quality equipment can control this within ±0.2°C.
Temperature Uniformity: Standard requirement is generally within ±2°C, while advanced equipment can maintain uniformity within ±0.3°C.
Temperature Deviation: Typically required to be within ±2°C.
Heating Time: The time it takes to heat from room temperature to the maximum temperature. For example, it usually takes about 30 to 70 minutes to heat from room temperature to 150°C under no-load conditions.
Cooling Time: The time it takes to cool from room temperature to the low temperature. For example, it typically takes about 45 to 90 minutes to cool from room temperature to -40°C under no-load conditions.

Structure and Dimension Parameters

Chamber Dimensions: Common sizes include 500×400×500mm, 600×500×750mm, 800×700×900mm, 1000×800×1000mm, etc., typically expressed as Length × Width × Height.
Overall Dimensions: Refers to the total external size of the test chamber, including the chamber body, control panel, refrigeration system, and other components. This is also typically expressed as Length × Width × Height.
Internal and External Materials: The outer shell is usually made of steel with a spray coating or stainless steel, while the inner lining is commonly made of 304 or 316 stainless steel, offering good corrosion resistance and thermal insulation properties.
Insulation Material: Typically made of rigid polyurethane foam or glass wool, designed to reduce heat transfer and improve the thermal insulation performance of the equipment.

Technical Parameters

Cooling and Heating System Parameters

Cooling Method: Common methods include fully enclosed air-cooled single-stage compression refrigeration and fully enclosed air-cooled cascade compression refrigeration.
Refrigerant: Commonly used eco-friendly refrigerants include R404A, R23, R502, etc.
Refrigeration Compressor: Typically uses imported original compressors, such as those from brands like Teco (France) and Bitzer (Germany), known for stable operation, high cooling efficiency, and low noise.
Heater: Usually uses nickel-chromium alloy electric heaters, which are known for fast heating speeds and long service life.

Control System Parameters

Control Method: Primarily uses microcomputer or PLC control systems, operated via a touchscreen LCD display or buttons. Features include dual digital display for set and measured temperatures, as well as PID self-tuning.
Program Capacity: Multiple program sets can be configured, each containing several steps and cycles to meet different testing requirements.
Communication Interface: Some devices are equipped with RS485 interfaces, USB interfaces, or network interfaces, enabling connection to computers for program design, test monitoring, and data transmission.

Safety Protection and Other Parameters

Safety Protection Devices: Includes leakage protection, short circuit protection, over-temperature protection, compressor overpressure protection, overload protection, overcurrent protection, and water shortage protection.
Power Supply Requirements: Generally powered by AC, with common voltage requirements of 220V or 380V, and a frequency of 50Hz or 60Hz.
Power Consumption: The required electrical power for the device’s operation, which is related to the refrigeration and heating capacity as well as other functional energy consumption. Typically ranges from 1kW to 10kW.