Reference standards, technical indicators and other related materials of the alternating heat and humidity test chamber

Reference standards, technical indicators and other related materials of the alternating heat and humidity test chamber

The alternating heat and humidity test chamber is an essential test equipment for aviation, automobile, home appliance, scientific research and other fields. It is used to test and determine the temperature environment of high temperature, low temperature, alternating heat and humidity or constant test for electrical, electronic and other products and materials. Parameters and performance after the change.

First, the alternating heat and humidity test box reference standard:
GB/T5170.5-2008 Damp heat test equipment method
GB/T10586-2006 damp heat test box technical conditions
GB/T2423.1-2008 Test A Low Temperature Test Method
GB/T2423.2-2008 Test B high temperature test method
GB/T2423.3-2006 test Ca constant damp heat test method
GB/T2423.4-2008 test Db alternating heat and humidity test method

Second, specifications: (unit: mm)
Model LP/GDJS-100 Inner dimension D×W×H 450×450×500 Dimensions 1200×1000×1650 Power: 5.5KW
Model LP/GDJS-225 Internal dimension D×W×H 500×600×750 External dimensions 1300×1150×1900 Power: 6.0KW
Model LP/GDJS-500 Inner Dimensions D×W×H 700×800×900 Dimensions 1450×1400×2100 Power: 9.0KW
Model LP/GDJS-800 Inner dimension D×W×H 800×1000×1000 Dimensions 1550×1600×2250 Power: 11.5KW
Model LP/GDJS-010 Inner dimension D×W×H 1000×1000×1000 Dimensions 1850×1600×2250 Power: 12.5KW

Third, technical indicators
1, temperature range: -20 ° C, -40 ° C, -60 ° C, -70 ° C, -80 ° C ~ 150 ° C
2, humidity range: 30 ~ 98% R? H (temperature between 25 ° C ~ 80 ° C)
3, temperature uniformity: ± 2 ° C (at no load)
4, humidity uniformity: +2, -3% R?H
5, temperature fluctuation: ± 0.5 ° C (when no load)
6, humidity fluctuation: ± 2%
7, temperature deviation: ± 2 ° C
8, humidity deviation: ± 2%
9, cooling rate: 0.7 ~ 1.0 ° C / min
10, heating rate: 1.0 ~ 3.0 ° C / min
11, time setting range: 1 ~ 9999H
12, humidity alternating range: 40 ~ 98% R? H

Fourth, the box structure
1. The outer shells are made of high-quality (t=1.2mm) A3 steel plate CNC machine tool, and the surface of the outer casing is sprayed, which is more smooth and beautiful.
2. The inner tank adopts imported high-grade stainless steel (SUS304) mirror panel;
3, insulation material: high-density glass fiber cotton. The thickness of insulation is 80mm;
4, temperature and humidity circulation system: the use of special air conditioning type low noise long axis fan motor, high temperature resistant stainless steel multi-wing impeller, to achieve vertical convection vertical diffusion cycle;
5. Double-layer high-temperature resistant high-strength sealing strip is used between the door and the box to ensure the sealing of the test area;
6, the use of no reaction door handle, the operation is easier;
7. The bottom of the machine is made of high quality fixed PU movable wheel;
8. The observation window adopts multi-layer hollow tempered glass, and the inner glued sheet type conductive film is heated and defrosted (clear observation test process);
9. Test hole (left side of the machine) 50mm (imported original) can be used for external test power line or signal line (the aperture or the number of holes must be increased).

V. Control system The temperature and humidity control instrument adopts the “Korean original TEMI880” large screen-liquid crystal display-programmable microcomputer PID control SSR output operation, all imported large LCD color touch screen screen, the screen operation is simple, the program editing is easy;
Accuracy: 0.1 ° C (display range);
Resolution: ±0.1 °C;
Temperature sensor: PT100 platinum resistance temperature measuring body;
High-intensity heating (2KW×1) electric heater using far-infrared nickel-chromium alloy;
The main parts of the electrical control are imported (Schneider) components to better control the temperature.
Compressor: fully enclosed French Taikang brand refrigeration method: the superimposed compression refrigeration and insulation system adopts ultra-fine glass fiber filled insulation zone, and the inner and outer bile connection parts are made of non-metal resistant high and low temperature materials, effectively reducing the temperature conduction box door seal using refined silicon. Rubber, so there is no aging and hardening under high and low temperature. The refrigeration system is overloaded, the refrigeration system is overpressured, there are leakage, operation indication, automatic shutdown after fault alarm, etc.

Sixth, the protection system
1. The refrigeration system is overloaded and the refrigeration system is overpressured;
2. The overall equipment is over temperature, the overall equipment is out of phase/reverse phase, and the overall equipment is timed;
3. Others have leakage, water shortage, operation indication, automatic shutdown after fault alarm, etc.

Attached:
First, the conditions of use of the equipment
1, the ambient temperature: 5 ° C ~ +28 ° C (average temperature within 24 hours ≤ 28 ° C)
2. Ambient humidity: ≤85% RH
3, power requirements: AC380V ± 10% 50 ± 0.5Hz three-phase four-wire system