Post Offer Free
KOMEG Technology Ind Co., Limited  

Gold Index: 6311

You are here: home  > Military Environmental ESS Test Temperature Cycling Chamber 10 C /Min

Military Environmental ESS Test Temperature Cycling Chamber 10 C /Min 

Place of Origin: Zhejiang, China (Mainland) 
inquire
Add to My Favorites
HiSupplier Escrow
Share |

Product Detail

Model No.: ESS-1000LL10

Military Quality Standard ESS Test 10 ºC /Min Rapid-Rate Thermal Cycling Chamber
<

Military Quality Standard ESS Test 10 ºC /Min Rapid-Rate Thermal Cycling Chamber

 

 

1. Advantages of Temperature Cycling:

 

 

Many independent studies have been conducted analyzing the effectiveness of various types of ESS processes. Conclusive data has been compiled by many manufacturers of electronic assemblies supporting today's thinking that temperature cycling is the most effective type of screening process.
 

 

While it has been demonstrated that both temperature cycling and random vibration together is the most effective screen in terms of identifying latent defects, if a single screen is to be used, temperature cycling is considered to be the single most effective screen in identifying latent defects. According to the ESSEH guidelines, temperature cycling regularly detected an average of two-thirds more latent product defects than with random vibration alone, which is ranked second most effective in identifying defects.
 

 

Stress uniformity is without question the most important aspect of the screening process. Temperature cycling provides the additional advantage of a uniform stress environment when air flow across the product is tightly controlled. All areas of the product must be subjected to an equal amount of stress throughout the screen profile. Some other methods of screening do not offer this uniformity across the product
 

 

 

 

2. Design for the environment
 

 

The environment to which a product is subjected must be considered early in the design stage - not as an after-thought when you know you have a problem. The following points should be clearly defined early in the design stage: Safety, Operating Environment, Mode of Transport (land, sea, and air), and geographic considerations.

 

For an effective screen, you should set temperature extremes as far apart as possible. Keep in mind the temperature limitations of the components on the board. The minimum range between hot and cold should be 100°C.

 

The rate of change of air temperature impinging on the part is 5°C to 20°C/minute, with the emphasis again on uniformity across all products in the chamber.

 

Uniformity will be controlled by air velocity across the product, with a recommended minimum of 750 FPM
 

 

 

 

3. Technical Parameter

 

Model

ESS-LL

1000SL10

Working Chamber Volume(L)

1000L

Temp Rate of Change(  ºC /Min)

10 ºC /Min

Temperature Range

 -70 ºC+100 ºC( Rapid Temp Change -40 ºC+85 ºC Full Linear Control)

Humidity Constancy

±0.5 ºC

Temp Constancy

±3.0 ºC

Exterior Material

Cold-rolled steel sheet (Rust proof & Plastic Spray treated )/ Stainless Steel

Interior Material

Stainless Steel Plate(SUS 304)

Insulation Material

Rigid Polyurethane Foam

Safety Devices

over pressure,over heat and over current protection for compressor, over temp. protection,

Compressor

Semi-Hermetic Compressor

Cooling Mode

Water Cooled

Control system

Balanced Temperature & Humidity Control System(BTC type)

Heater

Iron-chrome wire heater

Blower

Centrifugal Blower

Observation Window

Glass incorporating heat generator

Temp Sensor

Pt-100

<

bigPhoto
 Mr. Nancy Wong

Tel: 86-20-83971185
Contact to this supplier

Related Search

Find more related products in following catalogs on Hisupplier.com

Company Info

KOMEG Technology Ind Co., Limited [China (Mainland)]


Business Type:Manufacturer
City: Guangzhou
Province/State: Guangdong
Country/Region: China (Mainland)

You May Like:

Product (121)