Item

major technical parameter

Description

cold and thermal shock test machine(two chambers)

Model

CZ-I-42A

Specimen limitation

1)inflammable material ,explosive material,easy to volatile material test sample are forbidden;

2)storage corrosive substances test sample is forbidden;

3)storage biological test is forbidden;

4)storage strong electromagnetic emission source for test sample or storage are forbidden;

Capacity / Weight /Dimension

Internal capacity

42 L

Internal dimension

400×350×300   W×H×D（mm）

External dimension

About 1100×1930×1450  W×H×D（mm）

Weight

450KG

Working noise

≤70db（The value got at the point with 1 meter away from the front site of the machine and 1.2 height from the ground.）

Maximum power

16KW

Maximum current

19A

Power supply requirement

1)AC 380V three phases  with R,S,T +N protective grounding;voltage fluctuation range 10%

2)Frequency fluctuation range:50±0.5ＨZ；

3)Power supply method:TN-S or TT method

4)Grounding resistance of protection ground wire＜4Ω

5)User should equip with relevant capacity air switch or dynamic switch on the installation site,and the switch must control this machine only.When the electrified test sample is put in the test chamber,the power

Performance Index

Function requirement

1.(air)cooling/heating in room

2.setting according to the temperature,the indoor temperature reaches the set value

3.two parts:high temperature zone,low temperature zone

4.two parts separate,exchange the temperature by the hang basket

Corresponding test standard and test method

GJB150.5A-2009 temperature shock testing

GB/2423.13-2002 temperature shock testing

GJB360B-2009 temperature shock testing

GB2423.1-2008/IEC6008-2-1-2007 Electronic Electrician Product Environmental Test

Part two:test method  

Test A:low temperature

GBT 2423.2-2008 Electronic Electrician Product Environmental Test

Part two:test method 

Test B:high temperature

GBT 10589-2008 low test chamber technical condition

GBT 11158-2008 high test chamber technical condition

Temperature range

Temperature range

temperature range in high temperature zone：RT～170℃

temperature range in low temperature zone：RT～-60℃

temperature zone in test zone：-40～150℃

Temperature shock range

High temperature:  50℃～150℃

Low temperature: -10℃～-40℃

Control accuracy

resolution accuracy: 0.1℃                               

temperature fluctuation: ±1℃

spread uniformity:  ≤2.5%℃

temperature deviation：±1℃

Temperature shock and recover time

impact time:within 10s

temperature recover time in test zone:5 minutes

shock process(see as below)

red colour:temperature shock curve;  

blue colour:cold storage zone curve;      

green colour:heat storage zone curve;

cold storage time

RT→-60℃  ≤ 40min

heat storage time

RT→170℃  ≤ 35min

Note:heat capacity of steel≤35kg/m³ ;

Note:Performance index above is under the condition of environment temperature is +25℃,and R.H. is ≤85％,no test sample in the chamber;