Walk-In Chambers, robust temperature, and humidity test chambers designed to surpass stringent global reliability test standards. These chambers cater to major universities, research labs, and various industries, facilitating the testing of automotive components, electronics, construction materials, communications devices, aerospace parts, and more.
The QWIC-Series, Qualitest's Walk-In Chambers, come in six standard sizes and can be tailored to meet specific requirements. The prefabricated finished box panel ensures ease of assembly and installation, with a 4" (100mm) thick polyurethane foam board for optimal insulation. The plates of these chambers interlock securely, forming a tightly sealed test chamber. Whether you prefer stainless steel, aluminum, or embossed construction, Qualitest offers customization to meet diverse needs. Performance values are in line with IEC60068-3-6:2001(EBE,EBL,EBR) and IEC 60068-3-5:2001(EBF,EBU,EBUU) standards.
Using PID + PWM VRF (Variable Refrigerant Flow) principle technology for refrigerant flow control, we achieve energy-efficient operation at low temperatures (utilizing electronic expansion valves based on thermal energy conditions for refrigerant flow servo control technology). In this low-temperature working state, the heater remains inactive. Instead, we use PID + PWM to regulate the refrigerant's flow rate and direction, along with controlling the three-way flow of the refrigerant pipe, cold bypass pipe, and hot bypass pipe. This comprehensive control system ensures automatic temperature regulation within the working chamber.
This approach delivers significant energy savings of up to 30% when operating at low temperatures. Our technology is built upon the renowned Danish Danfoss' ETS series electronic expansion valves, which allow for smooth adjustment of cooling capacity to meet various requirements.
Features of QWIC Series Walk-in Chambers
Model |
QWIC-080 |
QWIC-120 |
QWIC-160 |
QWIC-250 |
QWIC-340 |
QWIC-400 |
Temperature |
Temperature control range (°C)
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Temperature fluctuation(°C):
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Cooling rate (°C):
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Heating rate (°C):
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Temperature uniformity (°C):
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Humidity |
Humidity control range:20.0%RH~95.0%RH |
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Humidity fluctuation:±1.5% RH |
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Humidity fluctuation:3.0% RH |
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Material |
Internal material:Stainless steel(SUS304) |
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External material:Cold rolled steel sheet/powder spraying |
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Heat insulating material:100mm thickness poly urethane plate + 10mm thickness mineral wool |
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Fan:Centrifugal blower |
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Compressor:Semi-closed Germany Bock, Germany Bitzer |
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Condenser:Water-cooled |
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Refrigerant:R404A, R23, R508 |
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Evaporator:Fin - and - Tube Heat Exchanger |
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Heater:Nickel chromium alloy heating wire |
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Humidifier:Steam humidifier |
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Size |
Interior size |
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ft: 6.46x6.88x6.46 mm: 1970x2100x1970 |
ft: 9.90x6.88x6.46 mm: 3020x2100x1970 |
ft: 13.35x6.88x6.46 mm: 4070x2100x1970 |
ft: 9.9x6.88x13.35 mm: 3020x2100x4070 |
ft: 13.35x6.88x13.35 mm: 4070x2100x4070 |
ft: 16.79x6.88x13.35 mm: 5120x2100x4070 |
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Outer size |
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ft: 7.11x7.70x11.48 mm: 2170x2350x3500 |
ft: 10.56x7.70x11.48 mm: 3220x2350x3500 |
ft: 14.00x7.70x11.48 mm: 4270x2350x3500 |
ft: 15.25x7.70x14.00 mm: 4650x2350x4270 |
ft: 18.76x7.70x14.00 mm: 5720x2350x4270 |
ft: 17.45x7.70x20.17 mm: 5320x2350x6150 |
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Volume (m3): |
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8.0m3 | 12.0m3 | 16.0m3 | 25.0m3 | 34.0m3 | 34.0m3 | |
Operating ambient temperature:+5 ~ 35°C |
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Power supply:380V AC 50/60Hz |
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Controller:Standard: South Korea TEMI-1500 Optional: South Korea TEMI-2500, South Korea TEMI-2700 |
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