I. Product Overview:
This series of thermal shock test chambers are suitable for reliability tests and environmental stress screening tests of industrial products. They feature high temperature control accuracy and a wide control range. By utilizing cold and hot storage tanks, the damper is opened as needed to introduce the cold and hot temperatures from the storage tanks into the test chamber, thereby achieving rapid temperature shock effects. The balanced temperature control system (BTC) combined with a special adjustable louvre air supply circulation system is used to control the SSR in a P.I.D. manner, ensuring that the heating input of the system is equal to the heat loss, thus enabling long-term stable operation.
II. Meeting the Standards: 
The DLTS series products can meet the following standards:
GB-2423.1-89 (IEC68-2-1) Test A: Low Temperature Test Method. (Cold Resistance)
GB-2423.2-89 (IEC68-2-2) Test B: High Temperature Test Method. (Dry Heat)
GJB150.3-86  GJB150.4-86 (MIL-STD-810D)  Low Temperature Test Methods.
GB10589-89 Technical Specifications for High and Low Temperature Test Chambers
MIL-STD-810D Method 501.2 Method 502.2
GB/T 2423.22-02/-87 Test N: Temperature Variation Test Method
GJB150.5-86 Temperature Shock Test
GJB360.7-87 Temperature Shock Test
GJB367.2-87  405 Temperature Shock Test
III. Main Technical Parameters: 
By using low-temperature and high-temperature cold and hot storage tanks, DAPER is opened as needed for operation, achieving a rapid impact effect. The balanced temperature control system (BTC) controls SSR in a P.I.D. manner, ensuring that the heating quantity of the system is equal to the heat loss, thus enabling long-term stable operation.
Performance: Water temperature in the water-cooling system is 25℃, when the machine is idle.
1.1 Operating temperature range of the test tank: -40℃ to +150℃
1.2 Temperature setting range for the high-temperature tank: +60℃ to +150℃
Heating time of the high-temperature chamber: RT (room temperature) to +150℃ is approximately 45 minutes (when the room temperature is between 10 and 30℃)
1.3 Temperature setting range of the low-temperature tank: -40℃ to -10℃
Cooling time of the low-temperature tank: RT (room temperature) to -40℃ approximately 60 minutes (when the room temperature is between 10 and 30℃)
1.4 Temperature fluctuation range: ±1.0℃
1.5 Temperature deviation: ≤ ±2.0℃
1.6 Temperature recovery time: ≤ 5 minutes (with plastic IC load of 2.5KG)
1.7 Exposure time to high/low temperatures: More than 30 minutes
1.8 Inner box dimensions: 350*350*400mm