Espec EHS-222MD HAST Chamber

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The Espec EHS-222MD HAST Chamber reduces the time it takes to complete humidity testing for semiconductors. By elevating temperatures above 100°C and increasing the pressure, simulation of normal humidity tests can be made while maintaining the same failure mechanisms. Tests can be completed in days, not weeks. Espec EHS-222MD HAST chambers feature automatic humidity filling, automatic door lock, a round workspace that allows wider sample boards to be loaded and a convenient, hermetic power-pin system for bias testing. An air HAST modification is available with the Espec EHS-222MD for faster testing of lead-free solder whisker resistance to humidity.

The Espec EHS-222MD is a model in the Espec EHS Series.

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Features

Unsaturated or saturated humidity control
Multi-mode 'M' system controls humidity (via wet bulb/dry bulb), even during heat-up and cool-down
Fully conforms to EIA/JEDEC test method A110 & 102C
Touch-screen controller with temperature, humidity, and count-down display; includes Ethernet interface
Language selection of English, Japanese, Chinese, or Korean
Specimen power terminals, allow power-up of specimens
Inner cylinder and door shield protect specimens from dew condensation
Interior is cylindrical for maximum product loading
Two stainless steel shelves
Set of casters for easy movement of the chamber (except double units)
Overheat & over-pressure protectors
Door lock safety mechanism to prevent opening of the door while the chamber is pressurized
Specimen power control terminal: shuts down the product power in the event of an alarm

Specifications

Model	EHS-222MD
Interior Dimensions (W x D x H)	15.5" x 16" x 15.5"
Interior Volume	1.62 cu. ft.
Temperature Range	105 to 142°C
Humidity Control	Yes
Notes	Pressure: 0.02 to 0.196 MPa gauge (0 to 28 psig); two chambers in one unit

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Espec EHS-222MD HAST Chamber

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