Three Boxes of Constant Temperature and Humidity Test Chamber/Machine

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1 pc

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Product Description



It is used to test the performance of materials in various environments and test the heat resistance, cold resistance, dry resistance and humidity resistance of various materials. It is suitable for testing the quality of products such as electronics, electrical appliances, communications, instruments, vehicles, plastic products, metals, food, chemicals, building materials, medical treatment, and aerospace.


1. The three-in-one design is easy to use and does not take up space.
2. Each test area can individually test three different control conditions of high temperature, low temperature or constant temperature and humidity.
3. All systems are individually independent: three sets of refrigeration systems, three sets of heating and humidification systems, and three sets of control systems are adopted, so the control is stable and accurate, and the service life of the parts can be prolonged.
4. Touch setting mode, completely controlled and locked by microcomputer, and has PID value automatic calculation function

Test Standard

GB-2423.1-89 (IEC68-2-1) Test A: Low temperature test method
GB-2423.2-89 (IEC68-2-2) Test B: High temperature test method
GJB360.8-87 (MIL-STD-202F) high temperature life test
GJB150.3 (MIL-STD-810D) high temperature test method
GJB150.4 (MIL-STD-8101D) low temperature test method
GB2423.3-93 (IEC68-2-3) Test Ca: Constant damp heat test method GB2423.4-93 (IEC68-2-30) test Db: alternating damp heat test method
GJB150.9-93 (MIL-STD-810D) Damp heat test method




Model HM-TS-91
Internal dimensionsW×H×Dcm 91L:W450*H450*D450mm(Width * height * depth)
Outside sizeW×H×Dcm W1300*H1950*D1150mm(Width * height * depth)
VolumeL 91L
Heating rate 0100about 20min,-20100℃35min,-40℃~100℃45min,-70℃~100℃about 60min
Cooling rate 200about 20min,20-20about 45min,20-40about 60min,20~-70℃about 90min
Temperature range 0-20-40-70~150℃
Temperature uniformity ±0.5℃
Temperature uniformity ±3%
Temperature stability ±0.3℃
Humidity stability ±2.5%RH
Humidity range 20%~98%RH(Can be customized according to customer requirements: low humidity type can reach 5%RH)
Program control 120 groups of 1200-segment programming, 999 cycle settings, and multiple PID control functions, with RS-232 computer interface control.
Humidification system Surface evaporative type, with additional protection against water shortage and power failure and overheating.
Dehumidification system Freezing latent heat dehumidification method
Cooling system -20 above adopts a one-element fully enclosed air-cooled refrigeration system, below -40 adopts a dual-element fully enclosed air-cooled refrigeration system
Water supply system Built-in pure water generator, tap water can be directly added without manual water addition, and water shortage warning device is attached
Material inside and outside SUS#304,Whole stainless steel
Insulation material Rock wool and rigid PU foam insulation
Safety devices No fuse switch, compressor overload, high cooling coal, over temperature, power failure, protection switch, temperature limit protection and fault alarm device
Temperature and humidity adjustment Balanced temperature and humidity control method
Standard equipment Automatic defogging glass window, two upper and lower adjustable compartments, test hole, operating room lamp, movable wheel
Optional equipment Recorder
Power supply AC220V/380V±10%,50/60Hz

Payment Terms︰ TT / LC

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