Thermal Shock Test Machine Environmental Testing Equipment

Thermal Shock Test Machine Environmental Testing Equipment

Thermal Shock Chamber.pdf

Description:

Thermal Shock Test Machine is divided into high temperature area, low temperature area and test area three parts, each area is a unique insulation structure, so doing hot and cold impact test. And by the degree of high temperatures and very low temperatures in a continuous environment can tolerate at the moment, that is, in the shortest time test their chemical or physical damage due to thermal expansion and contraction caused. Suitable objects include metal, plastic, rubber, electronics and other materials can be used as a basis for improvement of their products or reference

Fuctions

High-temperature impact test or low-temperature impact test, the maximum time is up to 9999 minutes, the most cycle time is up to 9999 times. The machine can be automatically or manually cycle the impact or selectively set the two areas or three areas to impact of hot and cold. It used binary cooling system that is very effectiveness for cooling, the cooling system is divided into the air-cooled and water-cooled. It also can be connected with a computer, but the record instrument is only for optional purchase. Color LCD touch-control operation interface with Chinese and English, easy to operate.

Thermal Shock Chambers Operating: pretreatment, initial testing, testing, recovery, and finally detected.

Features
•Meets MIL-STD 202F, Method 107G, Conditions A, B, C, and F
MIL-STD 883, Method 1010.7, Conditions A, B, C, and F
•Solid-state overtemperature / undertemeperature protection
•Electric open-air nichrome wire heater elements supported by
ceramic insulators
•Two open ended finned LN2 cooling coils
•Centrifugal type blower wheel with external mounted motor
•Pneumatically activated carriage transport system with up to
six stainless steel mesh product baskets
•Test chamber drain with Type 1/4" FPT connection
•Door switches for each chamber

Air Conditioning System
· the air control: forced ventilation circulation, balance thermostat method (BTC). This method not only refers to the case of the cooling system for continuous operation, the control system according to the temperature set point of the heater to control the output of the results by automatically calculating PID output, and ultimately achieve a dynamic equilibrium.
· the air circulating means: built between the air circulation fan duct and the long axis of stainless steel, the use of energy efficient refrigerators and regulation system, by effective and efficient heat exchange ventilator, to achieve the purpose of the temperature change. By adjustable air outlet adjusting bolt, thereby significantly improving the chamber temperature uniformity;
· the air cooling method: multi-stage diaphragm air heat exchanger.
· the air heating: Watkins quality nickel chrome electric heater.

Specifications:

Notes

· If the high-temp exposure range lower limit + 60°C is required or the low temp exposure range lower limit -60°C, please select the “ambient-temperature exposure” option

· If the temp fluctuation need to below ±1.8°C please select the “Low temp fluctuation package”

· Temperature heat-up/pull down time are applicable only during independent chamber operation

· If the automatically operated sliding door required, please select the “Automatically door package”

· Air-cooled condenser / Water-cooled condenser both available

· Apply on water-cooled condenser only

Safety Devices :

1)Hot chamber overheat protection switch

2)Cold chamber overheat protection switch

3)Air circulator overload alarm

4)Refrigerator high/low pressure protector

5)Compressor temperature switch

6)Air pressure switch

7)Fuse

8)Water suspension relay ( water-cooled specification only)

9)Compressor circuit breaker

10)Heater circuit breaker

11)Test area overheat/overcool protector

12)Air purge valve

Daily Maintenance
· hot and cold shock me a long shutdown is not used regularly every half power, power time is not less than one hour, and related spare parts and testing equipment is functioning properly.

· hot and cold shock boxes should be cleaned regularly evaporator: cleanliness levels because the test is different, in the forced air circulation effect, will gather a lot of dust particles and other small objects on the evaporator should be cleaned regularly.

· low-temperature chamber circulation fan, condenser fan and clean balance correction: cleaning and evaporator is similar because of different working environment chamber, circulating fan, will gather a lot of dust and other small particles on the object condenser fan should regular cleaning.

· hot and cold shock box device To move preferably at Paddy ASHDOWN Lai instrumentation technician guidance, in order to avoid damage to the equipment, such as customer self relocation, must have a professional electrician before turning on power to confirm correct operation of the circuit, or will burned equipment related components.

Operation and settings simplified by the use of a touch-screen LCD display (instructions displayed on-screen). At-aglance confirmation of test patterns, test area temperatures, temperature cycles, and trend graph displays.