High and Low Temperature Test Chamber

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.