The walk-in chamber is well suited for testing the storage, transport and usage of electronic products, auto components and raw materials under high-temperature and low-temperature environments.
Stainless steel heater, steam humidification or external humidification. Ultrasonic humidifier is optional
Fan
Centrifugal fan
Refrigerator
Mechanical compressor
Refrigerant
R404a or R404a /R23
Cooling method
When the lowest temperature ≥-25℃, mechanical water-cooling compression. When the lowest temperature ≤ -40℃, duplex water-cooling mechanical compression.
Controller
Display
7.0 inch, TFT color LCD display
Control method
Touchscreen micro-computer controller, integral windup PID
Auxiliary functions
Malfunction alarm and possible solution, power-off protection, temperature protection, calendar timing, automatic diagnosis
Water supply
Humidification system
Multistage reverse osmosis water filtering system or water with an electrical resistivity ≥500Ωm.
20KW to 55KW（depending on the model and configurations）
Notes: 1. Height: I type: 2100mm, II type 2400mm. 2. Above parameters are measured when the ambient temperature is +25℃ and circulating water temperature is +25℃. 3. The fluctuation parameter is tested in accordance with GB/T5170.2-2008 standard. 4. The above-mentioned products are designed with a humidifier. 5. The WT(H): WT series products have no humidity function.
Standards
GB/T2423.1-2008
Environmental Testing - Part 2: Test Methods - Tests A: Cold
GB/T2423.2-2008
Environmental Testing - Part 2: Test Methods - Tests B: Dry Heat
GB/T2423.3-1993
Basic Environmental Testing Procedures for Electric and Electronic Products - Test Ca: Damp Heat, Steady State
GB/T2423.4-1993
Basic Environmental Testing Procedures for Electric and Electronic Products - Test Db: Damp Heat, Cyclic GB10589-89 Specifications for Low Temperature Test Chambers
GB10589-89
Specifications for Low Temperature Test Chambers
GB10592-89
Specifications for Low/High Temperature Test Chambers
GB/T10586-89
Specifications for Damp Heat Testing Chambers
GJB150.3
Environmental Test Methods for Military Equipment - High Temperature Test
GJB150.4
Environmental Test Methods for Military Equipment - Low Temperature Test
GJB150.9
Environmental Test Methods for Military Equipment - Damp Heat Test
GJB899-90
Reliability Testing for Qualification and Production Acceptance
GJB1032-90
Environmental Stress Screening Process for Electronic Products
The duct structure of Walk-In environmental test chamber has gained a patent for invention. The duct structure ensures that the temperature in each testing area of the test chamber is uniform, thus guaranteeing higher test accuracy. Oil separator and oil returning and shunting device: The oil contained in the high-pressure steam discharged by refrigeration compressor is separated to ensure safe and efficient operation of the refrigeration system. Oil returning and shunting device (Simplewell’s patented technology) is mainly used to ensure the long-term operation of compressor or operation in high temperature. It prevents compressor failure or shortening of compressor service life due to lack of oil.
Simplewell controller
Mitsubishi PLC
Temperature and humidity adjustment range
Optional Configurations 1. Rotary dehumidifier/ polymeric membrane, with a lowest temperature/ humidity content of 5℃/5 %RH. 2. Built-in tempered glass door, easy to move 3. Water purification system, with automatic replenishment function 4. Recorder, save and print testing data 5. Ultrasonic humidifier/ high-pressure spray humidifier, providing continuous high humidity under extreme temperature 6. Dry air blow system, anti-condensation 7. Remote monitoring function, cellphone and computer supportive
