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Rust Proof Environmental Stress Screening Chamber , Temperature Cycling Chamber

Categories Environmental Stress Screening Chamber
Brand Name: SANWOOD
Model Number: SM-KS
Certification: CE AND ISO
Place of Origin: GUANGDONG,CHINA
MOQ: 1 set
Price: Negotiable
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 60 Sets per month
Delivery Time: 4-5 weeks
Packaging Details: Wooden case
Heater: Nickel chromium alloy heating wire
Evaporator: Fin - and - Tube Heat Exchanger
Humidifier: Steam humidifier
Refrigerant: R404A、R23、R508
Condenser: Air cooling, water cooling
Compressor: Semi-closed Germany Bock, Germany Bitzer
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Rust Proof Environmental Stress Screening Chamber , Temperature Cycling Chamber

Environmental Rapid Rate ESS Chamber Temperature Cycling Chamber


Average vs. Linear Temperature Transitions


In the earlier days of ESS, environmental chambers offered air temperature cycling transition rates on the order of 5°C per minute. This transition rate was often referred to as "average" by most chamber manufacturers. In reality, during an average rate temperature transition, the

air temperature rate of change may vary greatly from the average rate.

For temperature pulldowns with mechanical cooling, dT/dt will be much greater than the average in the early stages of the pulldown and much below the average as the low temperature extreme is approached. When plotted out, the time/temperature relationship is a curve with a steeper slope at the beginning of the pulldown and a flatter slope at the end, but nevertheless resulting in some average transition rate for the complete pulldown.




1. Overview of Environmental Test Chamber:

Developed to help electronics manufacturers detect product defects and production flaws, ESS is widely used in military and aerospace applications, less so for commercial products. The tests need not be elaborate, for example, switching an electronic or electrical system on and off a few times may be enough to catch some simple defects that would otherwise be encountered by the end user very soon after the product was first used. Tests typically include the following:

  • Temperature variations
  • Vibration tests
  • Pressure
  • Flexibility tests




Such a chamber can be used:
1) as a stand-alone test for environmental effects on test specimens
2) as preparation of test specimens for further physical tests or chemical tests
3) as environmental conditions for conducting testing of specimens
4) Temperature adaptability test under the condition of rapid change, or gradient for electrical, electronic, instruments and other products or spare parts, particularly applies to environmental stress screening test(ESS)




2. What Is Environmental stress screening (ESS)

ESS refers to the process of exposing a newly manufactured or repaired product or component (typically electronic) to stresses such as thermal cycling and vibration in order to force latent defects to manifest themselves by permanent or catastrophic failure during the screening process. The surviving population, upon completion of screening, can be assumed to have a higher reliability than a similar unscreened population



3. Standards Implemented and Met

GB10592-89 Technical requirements for high and low temperature test chamber
GB2423.1-1989 Low temperature test
GB2423.2-1989 High temperature test mode



4. Techinical Parameter:

ModelSM-KS Series
SM-KS-225-10
Working Chamber Volume(L)225L
Temp Rate of Change( ºC /Min)10 ºC /Min
Temperature Range-70 ºC~+100 ºC( Rapid Temp Change -55 ºC~+85 ºC Full Linear Control)
Humidity Constancy±0.5 ºC
Temp Constancy±3.0 ºC
Exterior MaterialCold-rolled steel sheet (Rust proof & Plastic Spray treated )/ Stainless Steel
Interior MaterialStainless Steel Plate(SUS 304)
Insulation MaterialRigid Polyurethane Foam
Safety Devicesover pressure,over heat and over current protection for compressor, over temp. protection,
CompressorSemi-Hermetic Compressor
Cooling ModeWater Cooled
Control systemBalanced Temperature & Humidity Control System(BTC type)
HeaterIron-chrome wire heater
BlowerCentrifugal Blower
Observation WindowGlass incorporating heat generator
Temp SensorPt-100
ControllerTouch screen programmable controller
Ambient Temp.+5ºC~+35ºC
PowerAC 380V/50Hz 3phase 5 wires+ Ground wire
Note: 1. We reserve the right to change specifications without prior notice 2. Customized sizes and configurations available
Cheap Rust Proof Environmental Stress Screening Chamber , Temperature Cycling Chamber for sale
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