A two-zone thermal shock test chamber is a specialized piece of equipment used to evaluate the durability and reliability of materials and products by rapidly exposing them to extreme temperature fluctuations. This type of test is crucial for industries like automotive, aerospace, and electronics, where components may encounter rapid temperature changes in real-world applications.

Here's a breakdown of the concept:

1. What it is:

A two-zone thermal shock test chamber consists of two separate, temperature-controlled chambers: one hot and one cold.
A mechanism, often a basket, automatically transfers the test specimen between these two chambers.
The rapid transfer simulates the thermal stresses that components might experience in real-world scenarios.

2. How it works:

The test specimen is placed in the chamber and subjected to a high temperature for a specified period.
Then, it is quickly moved to the low-temperature chamber for a defined duration.
This cycle of hot and cold exposure is repeated multiple times to evaluate the product's resilience to thermal shock.

3. Why it's important:

Failure Detection:

The rapid temperature changes can reveal weaknesses or defects in materials and designs that might not be apparent under stable temperature conditions.
Reliability Assessment:

It helps assess how well a product will perform under harsh temperature conditions, ensuring its reliability in its intended environment.
Compliance with Standards:

Many industries rely on thermal shock testing to meet specific standards and regulations, such as those outlined in MIL-STD-883H or IEC 60068-2-14.

4. Applications:

Automotive:

Testing electronic control units (ECUs), sensors, and other components for reliability in varying weather conditions.
Aerospace:

Evaluating the performance of critical systems and materials under extreme temperature variations in space or high-altitude environments.
Electronics:

Assessing the durability of integrated circuits, circuit boards, and other electronic components.
Medical Devices:

Ensuring the reliability of medical instruments and equipment when subjected to temperature fluctuations during use or sterilization.

In essence, a two-zone thermal shock test provides a controlled and efficient way to evaluate a product's ability to withstand rapid and extreme temperature changes, helping to identify potential problems early in the development process.

Model	JQTS2-50	JQTS2-80	JQTS2-100	JQTS2-150	JQTS2-225	JQTS2-408
Inner size WDH(cm)	353240	504040	505040	655046	657050	858060
Outer size WDH(cm)	125160185	135170185	140185190	160190205	160230210	180250230
Capacityt(L)	50L	80L	100L	150L	225L	408L
Weight(kg) N.W	800	900	950	1050	1250	1450
Temp.Shock Range	A:-40℃～180℃ B:-55℃～180℃ C:-65℃～180℃
Shock type	1. High Temp.→Low Temp. 3. Normal Temp →High Temp. →Normal Temp. →Low Temp. 2. Low Temp →High Temp. 4. Normal Temp →High Temp. →Normal Temp. →Low Temp
High Temp. Chamber	+60°C~+200°C
Pre-Heating Time	(+20°C～200℃) <35 minutes
Low Temp.Chamber	(-40°C/-55°C/-65°C) ~ -10°C
Pre-cooling Time	(+20°C～-75℃ )< 60minutes
Temperature transfer time	‘－40℃/-55°C/-65℃～＋180℃ <5 second (Two Zone)
Recover time	Heat chamber Exposure 30min
	Cold chamber Exposure 30 min
	within 5～10min
Temp.fluctuation range	±0.5℃
Chamber material	Outer shell : standard 1.5mm electrolytic plate Baked electrostatic painting Inner shell : standard 1.2mm thick SUS#304 stainless steel plate (matt treatment )
Insulation material	Glass fibre wool + Rigid polyurethane foam
Controller	7'LCD colorful Chinese and English touch screen (10 inch optional ),Program or fix setting ,120sets programs ,1200steps USB ,RS232 /R485 interface ,mobile APP , computer connection remote control (optional network interface )
Control system	P.I.D+S.S.R+Temp control system of microcomputer balance
Cooling type	Semi-closed two-stage compressor (water cooled) Fully-closed two-stage compressor (air -cooled )
Refrigant	HFC-404a and HFC23 /HFC-R449A/HFC-507
Compressor	Fully closed French “Tecumseh “compressor Semi-closed German “Bock “/"Bitzer" comporessor
Safety protection device	Fuse free switch, compressor high and low voltage protection switch,Over-temperature potector,Over -current protector , Refrigerant high -voltage protection switch, fault alarm system, electronic sound light alarm device
Spare parts	Glass viewing window , two shelves , 2*￠50mm cable Ports ,Casters ,
Power Supply	AC/380V,50HZ,20～50A,

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