Constant Temperature and Humidity Test Chamber, Environmental Test Chamber Manufacturer

Environmental test chambers are used to test product properties under rapid temperature changes. The heating rate and cooling rate can be set at 5, 10, 15, 20 ℃ per minute, allowing this test chamber to be widely used for aerospace products, instruments, electronic products, electronic components, and more.

Parameters of Constant Temperature and Humidity Test Chamber:
Loading: 45Kg, Stainless Steel
Internal Dimension: 400×350×350(W×H×D) mm
External Dimension: 1100×1800×1600(W×H×D) mm
Volume: 408L
Fast Temperature Change Range: -40℃ to 100℃
Temperature Range: -40℃ to 150℃
Temperature Fluctuation: ±1.0℃ after stabilization
Temperature Uniformity: ±2.0℃ after stabilization
Heating Rate: 5, 10, 15, 20 ℃ per minute selectable
Cooling Rate: 5, 10, 15, 20 ℃ per minute selectable

Cascade Refrigeration System:
Compressor: 2 air compressors, first air compressor is 10.2 HP and second air compressor is 15.2 HP
Refrigerant: Dupont 404A, R23
Condenser: Water-cooled
Evaporator: Fin-type evaporator
Heat Exchanger
Expansion System
Accessories: desiccant, oil separator, protection switch, evaporator pressure regulating valve, vibration absorber and so on

Temperature Control:
The environmental test chamber features a balanced temperature and humidity control, with the SSR (solid-state relay) controlled by a PID controller. In doing so, the heating capacity and humidifying capacity is equal to the heat and humidity loss, leading to long term stable operation.
Internal Material: SUS#304 Stainless Steel
External Material: SUS#304 Stainless Steel
Thermal Insulation Material: High density rigid polyurethane foaming heat preservation.

Air Circulation System:
375W regulated speed motor
Stainless steel extended axis
Sirocco fan
Shutter which can be adjusted on two sides to guarantee uniform temperature.
Door: Single door, single window, open to left, put hand on right hand side.
Vacuum Layer: 4 layers
Push button explosion proof handle