Product description

The high and low temperature test chamber is a testing equipment used in aviation, automotive, home appliances, scientific research and other fields to test and determine the parameters and performance of electrical, electronic and other products and materials after undergoing high temperature, low temperature, alternating humidity or constant temperature tests.

Product Parameters

Function: Damage to products in high temperature, low temperature, and humidity environments
Compliant with standards: GB/T2424.1 GB/T2424.2 GB/T2424.3 GB/T2424.4
Temperature range: [(0~-70 ℃) Instructions for ordering]~150 ℃
Humidity range: 30-98% R.H
Fluctuations/Uniformity: ≤± 0.5 ℃/≤± 2 ℃
Temperature and humidity controller: GDS: digital display P, I, D+S, S, R microcomputer integrated controller GDJS: Korean 880 programmable controller
Temperature sensor: Platinum resistance PT100 Ω/MV
Refrigeration system: Original French Taikang compressor unit
Circulating system: high and low temperature resistant air conditioning motor, multi blade centrifugal fan
Door frame insulation: double-layer high and low temperature resistant, aging silicone rubber sealing strip
Power supply voltage: AC380V ± 10% 50HZ

Product Configuration

1High and low temperature alternating humidity test chamberStructure Introduction:
1. The outer shell is processed and formed using high-quality (t=1mm) A3 steel plate CNC machine tools, and the surface of the shell is sprayed with plastic for a smoother and more beautiful appearance.
2. The inner liner adopts imported high-grade stainless steel (SUS304) mirror panel.
3. Insulation material: high-density glass fiber cotton The insulation thickness is 100mm
4. Temperature and humidity circulation system: using a specially designed low-noise long axis fan motor with high and low temperature resistant stainless steel multi blade impellers to achieve strong convection and vertical diffusion circulation.
5. Double layer high tensile sealing strips with high temperature resistance are used between the door and the box to ensure the sealing of the testing area
6. Using non reactive door handles makes operation easier
7. The bottom of the machine adopts high-quality fixed PU movable wheels
8. The observation window is made of multi-layer insulated tempered glass, and the inner side is coated with laminated conductive film for heating and defrosting (clearly observe the test process)
9. The test hole (on the left side of the machine) can be used for external testing power or signal lines (the aperture or number of holes needs to be increased and indicated)
IIHigh and low temperature alternating humidity test chamberRefrigeration system control
1. Compressor: Fully enclosed French Taikang
2. Refrigeration method: cascade refrigeration
3. Condensation method: forced air cooling
4. Refrigerant: R404A, R23 (environmentally friendly)
5. All system pipelines undergo a 48 hour leak detection test with ventilation and pressurization
6. Heating and cooling system * independent
7. Internal spiral refrigerant copper tube
8. Slope evaporator
9. The dry filter, refrigerant flow window, repair valve, oil separator, solenoid valve, and storage tank are all imported original parts
10. Dehumidification system: using evaporator coil dew point temperature laminar contact dehumidification method
11. Start R404A and R23 during cooling, and only start R404A during dehumidification (energy-saving and consumption reducing)
IIIHigh and low temperature alternating humidity test chamberheating system
1. Using far-infrared nickel alloy high-speed heating (2KW × 2) electric heater
2. High temperature independent system, does not affect low temperature testing, high temperature testing, and alternating wet heat testing
3. The output power of temperature and humidity control is calculated by a microcomputer to achieve high-precision and high-efficiency electricity efficiency
4High and low temperature alternating humidity test chamberhumidification system
1. External boiler steam humidifier
2. Equipped with automatic water level compensation and water shortage alarm system
3. Far infrared stainless steel high-speed heating (0.75KW × 3) electric heating tube
4. The humidity control adopts P.I.D+S.S.R, and the system is coordinated and controlled in the same channel
5High and low temperature alternating humidity test chamberCircuit control system
1. The temperature and humidity control instrument adopts the "Korean original TEMI850" large screen - LCD display - programmable microcomputer PID control SSR output operation. Fully imported large LCD touch screen display, simple screen operation, and easy program editing.
2. Accuracy: 0.1 ℃ (display range)
3. Resolution: ± 0.1 ℃;
4. Temperature sensor: PT100 platinum resistance thermometer;
5. Control mode: thermal balance temperature and humidity control mode; All electrical appliances use Schneider series products
6. Temperature and humidity control is achieved through coordinated control of the same channel using the P.I.D+S.S.R system
7. Equipped with automatic calculation function, it can immediately correct the temperature and humidity change conditions, making temperature and humidity control more accurate and stable
8. The controller operation interface is available in both Chinese and English, and the real-time operation curve chart can be displayed on the screen
9. It has a capacity of 100 programs, 100 segments per group, and 999 steps per segment that can be cycled. The maximum value set for each segment is 99 hours and 59 minutes
10. After inputting the data and experimental conditions, the controller has a screen lock function to avoid manual touch and shutdown
11. Equipped with RS-232 or RS-485 remote communication interface, it can be programmed on a computer to monitor the testing process and perform functions such as automatic power on/off
12. The controller has an automatic screen saver function, which better protects the LCD screen during long-term operation (making its lifespan longer)
13. The return air outlet of the high and low temperature test chamber is equipped with an automatic defrosting device (so that the water vapor generated during the test will not accumulate on the refrigeration evaporator and cause ice blockage)

VIHigh and low temperature alternating humidity test chamberprotection system
1. Fan overheat protection
2. Overall equipment under phase/reverse phase protection
3. Overload protection for refrigeration system
4. Refrigeration system overpressure protection
5. Overall equipment timing
6. Overheating of water pump, overcurrent protection
7. Other protections include leakage, water shortage, operation indication, automatic shutdown after fault alarm, etc.
7、 Random data
1. Instruction manual, circuit diagram
2. Operation method, precautions, basic shipping accessories, maintenance and repair matters
8、 Service conditions for high and low temperature wet heat alternating test chamber
1. Environmental temperature: 5 ℃~+28 ℃ (average temperature within 24 hours ≤ 28 ℃)
2. Environmental humidity: ≤ 85%
3. Power requirement: AC380 (± 10%) V/50HZ three-phase four wire system
9、 Execution standards
GB10592-93 Technical Conditions for High and Low Temperature Test Chamber
GB10586-93 Technical Conditions for Damp Heat Test Chamber GB10586-93
GB2423.1-2001 Test A Low temperature Test Method
GB2423.2-2001 Test B High temperature test method
GB2423.3-93 Test Method for Ca Constant Damp Heat Test
GB2423.4-93 Test Db Alternating Damp Heat Test Method
PS: The operating environment needs to be below room temperature of 28 degrees Celsius and well ventilated.
The machine should be placed 80 centimeters in front, back, left, and right, and no objects should be placed