WEISS Stress screening systems
ESS, Heat Shock Test Chambers
Environmental Stress Screening System
During the ESS test, the productsare subject to precisely defined stress
so that defects in components and PCBs can be detected before leaving
the manufacturer’s plant. Detecting weak points considerably improves
the robustness of the products. Unreliable systems are filtered out before
they reach the customers.
Each product requires a specially adapted ESS technique.
The advantages of ESS are . . .
> Improvement of product reliability
> The quality itself is substantially improved
> Customer satisfaction increases
> Reduced costs
> Reduced risks
> Quick “feedback”
> Problems can be detected more rapidly.
More information on this product:
www.wut.com/en/schunk01.c.11585.de/all_wvproductsarticle
Temperature / Climate Test Chamber WT/WK - ESS
Facilitate controlled improvement of the reliability of technological
products by enabling the user to detect and remove the cause of faults
early on. The test systems based on the well-tried modules of the WT
and K series with increased power or heating, cooling and circulating air.
The WK series also complies with customary climatic test standards. The
technology of the systems, as is to be expected from the ergonomic
design, provides optimum operation and reliable functioning:
Powerful, homogeneous temperature and/or climate conditioning of the
test chamber.The specimens are protected by an independent
temperature measurement.Easily accessible maintenance elements
ensure minimum service.
 | Technical specification
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Temperature Shock Test Chamber TS 130
Temperature shock test chambers for simulating the high thermal values
required by testing standards in the electronics industry which require
building components to be exposed to changes in
temperature from –80 to +220°C within seconds. The test specimens are
placed in a lifting basket which is moved between the test rooms which
are conditioned to different temperatures (hot and cold chamber).
Main advantages
> Large air volume flow, air guidance cross-flow
> Moving of lifting basket within a few seconds
> Adjustable overheating and pre-temperature conditioning
> Special editor for programming integrated in Software S!MPATI*
Technical specification
> Test room space 130 l
> Temperature range Hot Chamber +60 °C ... +220 °C
> Temperature range Cold Chamber -10 °C ... -80 °C
> Time for changing 10 sec
> Control system: Controller Board S!MCON/32*-NET with Color Touch
Panel
More information on this product:
www.wut.com/en/schunk01.c.11596.de/all_wvproductsarticle
HALT/HASS-Test Chamber "Sigma"
This test cabinet is used for performance of combined temperature and
multi-axial-random vibration tests. The object of HALT (Highly
Accelerated Life Testing) and HASS (Highly Accelerated Stress
Screening) tests is to discover faults in parts and components of diverse
products. In order to improve the product quality, the cabinet not only
allows performance of vibration tests, but also of HALT/HASS tests.
Faults are induced by excitation of fast temperature cycles and 3D
vibration. The test cabinet „Sigma“ consists of a test space with
airconditioning components and a vibration test table. The asymmetrically
designed test table is subject to controlled shocks from pneumatic
actuators arranged underneath, so that up to 35grms can be measured
with six different degrees of freedom, in a spectrum between 5 and
3000 Hz.
Technical specification
> Test space volume 800 l
> Temperature range -100 °C ... +200 °C
> Temperature changing rate up to 80K/min
> Air speed 2 to 30 m/sec
> Random vibration up to 35 grms
> Frequency spectrum 5 to 3000 Hz
> Control System: Control software - SCCTM - 2000 with integrated
industrial personal computer.
More information on this product:
www.wut.com/en/schunk01.c.11607.de/all_wvproductsarticle
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Stress Screening
System
Product range:
>> Temperature/Climate Test
Chamber WT/WK - ESS
>> Vibration Test Chambers
WT/WK-V
>> Temperature Shock Test
Chamber TS 130
>> HALT/HASS-Test Chamber
"Sigma"
Vibration Test Chambers
WT / WK-V
Vibration test chambers for
simultaneous testing of the
influence of vibration, temperature
and temperature changes as well as
humidity, e.g. on components in the
engine bay of vehicles. With a
closed floor element these cabinets
can be used as fully functional
temperature testing cabinets (WT-V
series) and, additionally, as climate
test cabinets (WK-V series) as well
as for ESS testing.
Main advantages
> Powerful, homogeneous
temperature and/or climate
conditioning of the test chamber.
> Easily accessible maintenance
elements ensure minimum service
times.
> Precise adjustment of system
height to accommodate standard
shakers.
> Simple integration of all standard
shakers. Networking of chamber
control software and shaker control
software possible (TCP/IP-Protocol).
Technical Specifications
> Temperature range -70 ... +180 °C
> Temperature changing rate
standard 5/10/15 K/min
> Climate range +10 ... +95 °C
> Humidity range 10 ... 95 % r.h. (1)
> Control system: Controller Board
S!MCON/32*-NET with Color Touch
Panel
More information on this product:
www.wut.com/en/schunk01.c. 11590.de/all_wvproductsarticle
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www.wut.com
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