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ProductsIEC 60068-2-38 Temperature and Humidity Chamber
Constant Humidity And temperature test chamber IEC 60068
Constant Humidity And temperature test chamber IEC 60068
control panel temperature and humodity test chamber
Environmental Test Chamber climate temeprature and humidity chamber
Temperature and Humidity ChamberHumidity And Temperature Test Device

IEC 60068-2-38 Temperature and Humidity Chamber

Temperature and Humidity Chamber (also known as Constant Temperature and Humidity Chamber or Damp Heat Test Chamber) is a core testing device that precisely simulates constant or alternating temperature and humidity environments within a sealed space through heating, cooling, humidifying, and dehumidifying systems. It is used for product environmental adaptability, reliability, aging, and quality validation.

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Temperature & Humidity Test Chamber

1.Overview of Temperature & Humidity Test Chamber

Also known as constant temperature & humidity chamber or damp heat test chamber, it accurately simulates constant or alternating temperature and humidity environments in a sealed space through heating, cooling, and humidification systems. It is a core testing instrument for verifying product environmental adaptability, reliability, aging resistance, and quality.

2. Main Types of Temperature & Humidity Test Chambers



  • Standard Constant Temperature & Humidity Chamber: Maintains fixed temperature and humidity for general stability testing.
  • High-Low Temperature Alternating Damp Heat Chamber: Supports programmable temperature & humidity cycling to simulate day/night or seasonal changes.
  • Rapid Temperature Change Chamber: Fast temperature ramp rate (5–20℃/min) for simulating sudden environmental changes.
  • Explosion-Proof Temperature & Humidity Chamber: Explosion-proof design for flammable and explosive samples such as batteries and chemical products.
  • Walk-in / Drive-in Chamber: Large-volume chamber for full testing of complete vehicles and large equipment.


3. Standards

  • IEC 60068-3-6: Performance confirmation for temperature and humidity chambers.
  • IEC 60068-2-78: Constant damp heat (Cab).
  • MIL-STD-810: U.S. military standard environmental test.


4. Applications

  • Environmental Adaptability Testing: Simulate high/low temperature, high/low humidity, and temperature-humidity cycling.
  • Reliability & Accelerated Aging: Dual 85 test (85℃ / 85% RH), long-term damp heat aging.
  • Performance Verification: Stability of electrical, mechanical, optical, and material properties under temperature and humidity.
  • Quality & Compliance: Meet national, military, IEC, CE, GMP certification requirements.
  • R&D & Screening: Early defect detection, design and material optimization.


  • Main Technical Parameters of Model TT-1OOOL
Dimensions of working chamber(mm)
W1000*D1000*H1000
External dimensions(mm)
W1200*D1950*H1950
subjectivity of the real thing
Volume(L)
1000
Door
Single door
Temperature range
-70℃～+180℃
Temperature deviation
≤±2.0℃ （No load）
Temperature fluctuation
±0.5℃
Temperature uniformity
≤2℃
Temperature rate of heating and cooling
Heating rate: about 3 ℃/min
(non-linear, no-load)
Cooling rate: about 1 ℃/min
(non-linear, no-load)
Humidity range
20~98%RH
Humidity deviation
±3%RH(when＞75%RH)
±5%RH(when≤75%RH)
Humidity fluctuation
≤±2.5%RH
Humidity uniformity
≤±3%RH
Power supply
Power requirement: 380V 50HZ
three-phase five wire system including grounding wire
Internal material
SUS 304 stainless steel
Note: The above performance indexes are measured under the conditions of ambient temperature +25℃, relative humidity ≤ 85%, and no sample.