1. Scope of application
This series of products are widely used in the aviation, aerospace, electronics, IT industries, instrumentation, electrical products and other simulated samples to test the adaptability of simulated samples under rapid changes in ambient atmospheric temperature and to provide reliability testing for the safety of electronic components. Product screening, etc.
2. Meet the standards
GB/T2423.1-2008 Environmental testing of electrical and electronic products Part 2 Test methods Test A Low temperature
GB/T2423.2-2008 Environmental testing of electrical and electronic products Part 2: Test methods Test B: High temperature
GB/T2423.22-2012 Environmental Test Part 2: Test Method Test N: Temperature Change
GJB150.5-2009 Environmental test methods for MLYequipment - Temperature shock test
GJB150.5A-2009 MLY equipment laboratory environmental test methods Part 5: Temperature shock test
GJB360B-2009 Test methods for electronic and electrical components
GB/T2423.1-2008/IEC6008-2-1-2007 Environmental testing of electrical and electronic products Part 2: Test methods Test A: Low temperature
GB/T2423.2-2008 Environmental testing of electrical and electronic products Part 2: Test methods Test B: High temperature
GB/T10589-2008 Technical conditions for low temperature test chamber
GB/T11158-2008 High temperature test chamber technical conditions
IEC68-2-14 Test method N: Temperature change
3. Product Features Description
1. Use the internationally accepted energy storage method to conduct impact tests at hot and cold temperatures.
2. Touch-sensitive color LCD display human-machine interface controller, easy to operate.
3. Graphical function display, with abnormal or fault display and troubleshooting instructions.
4. The temperature control has high precision and all adopts PID automatic calculation control.
5. The air volume is evenly distributed to ensure uniform test exposure.
6. It has a reservation start function and can choose the impact mode (high temperature first or low temperature first.)
7. The number of cycles and automatic defrost can be set.
4.1 Box structure
The precooling zone, preheating zone, and test zone are independent. The three boxes can be switched through the air door without moving the test product. When the room temperature is affected, the ambient temperature is introduced into the test space through the blower to eliminate the heat or cold in the test space. At the same time, The damper of the high and low temperature tanks is closed; when the low temperature is hit, the dampers of the high temperature and normal temperature tanks are closed, and the low temperature tank is connected to the test chamber, and the pre-stored cold energy is instantly introduced into the test chamber; when the high temperature is hit, the dampers of the low temperature and normal temperature tanks are closed, and the high temperature tank is connected to the test chamber. , instantly introducing the pre-stored heat into the test chamber. This achieves the purpose of rapid temperature changes.
4.2 Material composition
Internal material: Inner box material: 304# stainless steel, 1.2mm thick, all gaps are fully welded, no steam leaks.
Outer box material: Outer box material: 1.5mm cold-rolled steel plate treated with paint
Insulation material: Insulation material: polyurethane foam + glass fiber cotton 100mm thick, flame-resistant and fire-resistant.
Box door: single door, horizontal handle, hidden door buckle, with observation window and observation light, defrost heating tape embedded around the studio door frame, no frost or condensation on the door frame.
Sealing device: Original imported high-quality silicone sealing strip.
Casters and fixed foot cups: The test chamber is equipped with 4 load-bearing casters and 4 fixed foot cups to facilitate the movement and fixation of the machine.
Air conditioning channel: Built-in high-temperature zone, low-temperature zone air room, circulating air duct and stainless steel circulating fan. By switching the air door, the heat and cold are evenly blown out from the inside of the air duct, and the temperatures stored in the high-temperature tank and low-temperature tank are distributed to the test space to achieve rapid temperature changes and uniform indoor temperature distribution
Lead test hole: Open a Φ50mm test hole on the left side, and attach a special sealing silicone rubber plug. The lead holes have diameters of φ50, φ80, and φ100, and their specifications can be customized according to user requirements if the chamber structure allows it. system (standard configuration: one on the left)
Low temperature zone mechanical room: evaporator, circulation fan, drainage device, cold storage fin, heater, circulation impeller, volute
High-temperature area mechanical room: heater, circulation fan, heat storage plate, pressure balance port, circulation impeller, volute
Power distribution control cabinet: main power circuit breaker, controller, distribution board, cooling fan, over-temperature protector, cylinder, pressure protector, liquid storage tank, water-cooled condenser, refrigeration unit
Heating system: Ceramic heating frame using nickel alloy electric heating wire
Cooling system: air-cooled or water-cooled (selected according to customer conditions)
Test material rack: 2 pieces of stainless steel SUS #304 grid-type storage rack (load bearing <=20kg/piece)
Adjustable spacing 40mm
Load condition requirements: On any section perpendicular to the dominant wind direction, the sum of the load areas should not be greater than 1/3 of the cross-sectional area of the working room. Do not block the flow of airflow when placing the load
| Main Specifications |
| Cabinet |
| Studio size |
Approximately W 500 × H 450 × D 400 (mm) (W width × H height × D depth) |
| Dimensions |
Approximately 1450×1800×1650 (mm), subject to the actual product |
| Volume |
100L; |
| Noise |
Within 75dB (measured 1 meter from the front of the machine and 1.2 meters from the ground) |
| Temperature |
| High temperature zone |
Temperature range |
RTºC~+200ºC |
| Heating time |
RT~+200ºC: about 30min |
| Low temperature zone |
Temperature range |
RT~-55ºC |
| Cooling time |
RT~-55ºC: about 55min |
| Studio |
Temperature shock range |
-65ºC~+150ºC |
| Temperature fluctuation |
≤±0.5 |
| Temperature deviation |
≤±2ºC |
| Temperature uniformity |
≤2ºC |
| Temperature conversion time |
≤10s(Damper opening time) |
| Temperature recovery time |
≤4min |
| Operation mode |
There are two high and low temperature impact modes and high and low temperature + room temperature impact modes, which can be set by the human-machine interface. |
| High and low temperature shock mode |
150ºC(30min)-NC--40ºC(30min) |
| High and low temperature + room temperature impact mode |
150ºC(30min)-room temperature--40ºC(30min) |
| Power |
High greenhouse power: 9KW
Low temperature greenhouse power: 9KW
Other power about: 2KW
Maximum power about: 20KW
Operating power approximately: 12KW |
| Voltage |
Power requirements: 380V 50HZ three-phase five-wire system plus ground wire
Power: 20KW current 40A |
| Condensation method |
Water cooling |
| Gross weight |
550KG |
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