ETSP – HAST (Highly Accelerated Stress Testing) chamber ETSP- HAST series

ETSP-HAST series are “Highly Accelerated Temperature/Humidity Stress Test”. It was developed as a shorter alternative to Temperature Humidity Bias (THB) testing. If THB testing takes 1000 hours to complete, HAST results are available within 96~ 100 hours. HAST accelerates corrosion, particularly that of the die metal lines and thin film resistors. HAST requires preconditioning and is conducted with electrical bias at 130℃ and 85%RH for 96~100 hours.

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General Features

  • Unsaturated or saturated humidity control
  • Programmable touch screen LCD controller with temperature and humidity stores up to 120 patterns Max. 1,200 segments
  • 12 sepcimen power terminals to supply power to specimens
  • Automatic fill of the humidity water
  • Electric clamping door with sliding tray
  • Door lock safety mechanism to prevent opening of the door while the door is pressurized
  • Specimen power control terminal shuts down the product power in the event of an alarm single “master” control unit allowing centralized
  • Friendly, flexible, up-to date control and management systems
  • Allows easy servicing and upgrades



  • Chart recorder
  • Additional hermetic terminals for power application or for thermocouple
  • Additional shelf
  • Customization available
Need more information?

Please contact +6221-5467618, +6221-54212399 or email [email protected]


Technical Features

Temperature range 100 ~ 155 ℃
Temperature accuracy Less than ± 0.1 ℃
Temperature uniformity Less than ± 1.0 ℃
Heating-up rate RT to 140 ℃ within 60 minute
Humidity range 65% RH ~ 100% RH
Humidity accuracy Less than ± 1 ℃
Humidity uniformity ± 3% RH
Pressure range 0.2 ~ 2.1kg/㎠G
Input power requirements 230V ± 10%/, 380V ± 10%, 50Hz/60Hz, 1Ph/3Ph (Changeable according to customer specification)
Technical Specification
Model Internal dimensions External dimensions Useful capacity
ETSP-HAST 48 350(Φ)x500(D)mm 850x900x1260 (WxDxH) mm 48 liters
ETSP-HAST 70 450(Φ)x450(D)mm 950x850x1360 (WxDxH) mm 70 liters
ETSP-HAST 183 650(Φ)x600(D)mm 1150x1000x1560 (WxDxH) mm 183 liters
Note: Different size of chambers are available on user’s demand.