• ESPEC ENGINEERING (THAILAND) CO.,LTD.
  • (+66) 038-109353
  • (+66) 038-109356

HAST (EHS-211M)

Total load resistance Shelf load capacity
(Included shelf weight)
Floor load Inside dimension
(W x H x D)
Ramp Rate Range
- 3 - 294 x 318 mm Unsaturated Heat up rate : 0 to 0.196 Mpa (Gauge)
Approx. 60 min
Temperature : +105°C to +142.9°C
Humidity : 75%RH to 100%RH
Wet-saturated Heat up rate : 0 to 0.196 Mpa (Gauge)
Approx. 45 min
Temperature : +105°C to +162.9°C
Dry&wet-bulb temperature Heat up rate : 0 to 0.196 Mpa (Gauge)
Approx. 60 min
Pull down rate : +142.9°C/75%rh to +85°C/85%rh Approx.120 min
Temperature : +105°C to +142.9°C
Humidity : 75%RH to 95%RH

Features

Designed for humidity resistance testing, life testing and accelerated testing

Air-circulating fan for highaccuracy testing

The air-circulating fan minimizes variations in temperature and humidity in the test area for greater accuracy during testing. The fan enables uniform stress to be applied to a specimen.

Maximized workspace

The cylindrical pressure vessel distributes pressure evenly and offers superior strength. Interior is expanded for easier loading of a large specimen such as printed circuit board.

Prevention of dew condensation and wetting of specimens

Compared with natural convection test systems, the double cylindrical structure and proprietary air-conditioning system prevents dew condensation and water droplets falling on the specimen. Temperature control and operation of the test area fan before and after testing also prevents dew condensation and droplets from forming on samples, ensuring highly readable testing results. (Featuring dry and wet-bulb temperature control and unsaturated control)

Color coding for easy connection

Specimen signal terminals with 12 powerpins per unit is equipped as standard. Additional 12 pins per set are available as optional and can be expanded up to total 72 pins. Complicated connection work is also made easier thanks to color-coded terminal (black = negative, red = positive).

Specimen protection from risk of damage

A specimen power supply control terminal is equipped as one of safety features, which output contact signals to allow voltage and signals to be applied to the specimen during testing. In the case of activation of safety devices such as overheat protection and boil-dry protection, any externally-powered devices can be also turned off with this terminal to avoid the risk of damage to the specimen or the chamber.

Chamber interior

Specimen signal terminals (internal)

Specimen signal terminals (external)

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