Highly Accelerated Stress Test System (HAST)

Overview of Equipment:

Accurate humidity resistance testing achieved under various control modes

Lately, the demand for highly accelerated stress test has been increasing due to density growth of electric and electronic parts.

The Highly Accelerated Stress Test Chamber has been primarily developed to conduct bias testing which applies constant voltage and signals. The standard equipment features two control modes: [unsaturated control] and [wet saturated control], while the M-type chamber additionally offers a [wet and dry bulb temperature control] mode.

The M-type chamber conforms to the IEC60068-2-66 standard.

A double stack model allows conducting 2 different tests at the same time, achieving space optimization and time saving.

Model Temperature, humidity and pressure range Inside / Outside dimensions (mm)
EHS-211(M) +105.0 to +142.9°C [+221 to +289.2°F] /
75 to 100%rh / 0.020 to 0.196MPa (Gauge)
W255×H255×L318 /
EHS-211MD W255×H255×L318×2 /
EHS-221(M) W355×H355×L426 /
EHS-221MD W355×H355×L426×2 /
EHS-411(M) +105.0 to +162.2°C [+221 to +324°F] /
75 to 100%rh / 0.020 to 0.392MPa (Gauge)
W255×H255×L318 /
EHS-411MD W255×H255×L318×2 /

Ease of operationOur chamber uses a spherical pressure vessel for uniform distribution pressure, and easy load of specimens in the test area.Standard safety mechanismsNumerous safety features equipped as standard, such as an automatic door lock system, overheat / overpressure protector.Automatic water supplyThe amount of water required by the humidifying heater for a test is automatically supplied from the water tank.10 patterns program setting12 specimen signal terminal pins (more available as option)Customized sliding rack (option)

Test area
Photo: Test area
Specimen signal terminal pins
Photo: Specimen signal terminal pins

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