Beijing GDJW series high and low temperature alternating test box manufacturer/model selection

Product Usage: This product is an essential testing equipment in the fields of aviation, automotive, home appliances, scientific research, etc. It is used to test and determine the parameters and performance of electrical, electronic, and other products and materials after high temperature, low temperature, or constant temperature environmental changes.

1、 Product specifications and parameters

Beijing GDJW series high and low temperature alternating test box manufacturer/model selection

2、 Structure Introduction:
1. The outer shell is made of high-quality (t=1.2mm) A3 steel plate and processed into shape by CNC machine tools. The surface of the outer shell is treated with spray coating, making it more smooth and beautiful;
2. The inner liner adopts imported high-grade stainless steel (SUS304) mirror panel;
3. High density glass fiber cotton is selected as the insulation material The insulation thickness is 80mm;
4. Temperature cycle system: using a specially designed low-noise long axis fan motor with stainless steel multi blade impellers that are resistant to high and low temperatures 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 adopts 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);

3、 Heating system:
1. Adopting far-infrared nickel chromium alloy high-speed heating electric heater;
2. High temperature completely independent system, does not affect low-temperature and high-temperature tests;
3. The temperature control output power is calculated by a microcomputer to achieve high-precision and high-efficiency electricity efficiency;

4、 Control system:
1. The temperature control instrument adopts the Korean imported "TEMI300" programmable microcomputer PID control SSR output operation, which can set the number of cycles;
2. Accuracy: 0.1 ℃ (display range);
3. Resolution: ± 0.1 ℃;
4. Temperature sensor: PT100 platinum resistance thermometer;
5. Control mode: thermal balance temperature regulation mode; All electrical appliances use Schneider series products;
6. Temperature control adopts P I. D+S.S.R system coordinated control on the same channel;
7. Equipped with automatic calculation function, it can immediately correct temperature change conditions, making temperature control more accurate and stable;
8. After inputting the data and experimental conditions, the controller has a screen lock function to avoid manual touch and shutdown;
9. The return air outlet of this 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);

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5、 Refrigeration system:
1. Compressor: Fully enclosed original French Taikang;
2. Cooling method: single (double) mechanism cooling;
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. The heating and cooling systems are completely 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 when cooling down R23， Only start R404A during dehumidification (energy-saving and consumption reducing);

6、 Protection system:
1. Fan overheating 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、 Equipment usage conditions;
1. Environmental temperature: 5 ℃ to+28 ℃ (average temperature within 24 hours ≤ 28 ℃);
2. Environmental humidity: ≤ 85%;
3. The machine should be placed 80 centimeters in front, back, left, and right, and no objects should be placed;

8、 Compliant with standards: GB/T10592-2008, GB/T2423.1-2008, GB/T2423.2-2008 and other relevant standards;

Free home delivery, after the installation and debugging of the equipment is completed, relevant technical personnel will receive free basic operation guidance at the user's site, with no limit on the number of people.