Overview
HZAOC GDJW-150B low/high temperature test Chamber is a device suitable for storing, transporting and using adaptability test of electrical, electronic products, components, parts and materials in high and low temperature environment, supporting temperature gradual change test and electronic components stress screening test. The box adopts an overall structure, the inner side is 1.0mm SUS304B stainless steel plate, the outer side is 1.0mm Cold rolled steel plate sprayed, and the thermal insulation material is ultra-fine Glass thermal insulation cotton to ensure Stability and durability.
Features
1. The box adopts the overall structure, the inner side is 1.0mm SUS304B stainless steel plate, the outer side is 1.0mm Cold rolled steel plate sprayed, and the thermal insulation material is ultra-fine Glass thermal insulation cotton.
2. The door sealing is made of double-decked silicone rubber sealing material, and the observation window is a multi-layer conductive film tempered hollow Glass, the size is 200 × 300mm, and the built-in special heating wire is anti-frosting and lighting.
3. The side of the box is equipped with φ 50mm test holes, and the stopper material is silicone rubber with low foaming, high and low temperature resistance and thermal insulation.
4. The heating device adopts porcelain frame nickel-chromium wire electric heating device, which has small thermal inertia, long life and stable and reliable control.
5. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, using R404A environmentally friendly refrigerant, Miscellaneous parts are imported brands.
6. Control system with High Accuracy Digital Temperature Controller, PT100 Temperature Sensor, Solid State Relay Zero Trigger, with a variety of Safety protection measures.
7. The air supply method is the upper air supply and the lower air return, and the temperature sensor is placed in a trend to ensure uniform temperature.
Principle
The low/high temperature test Chamber realizes temperature control through heating system and refrigeration system. The heating device adopts a porcelain frame nickel-chrome wire electric heating device, which outputs a controllable pulse duty cycle PID signal from the meter and is controlled by a solid-state relay; the low temperature refrigeration adopts a French "Taikang" fully enclosed Compressor unit, using R404A environmentally friendly refrigerant, with imported components. The Control system monitors the temperature through a High Accuracy digital temperature controller and a PT100 Sensor, and uses an upper air supply and lower air return method to ensure uniform temperature in the studio. Safety protection systems such as high voltage control, overpressure, overload, etc. are also provided to ensure the stable operation of the equipment.
Applications
Electrical, electronic products, components, parts and materials in high and low temperature environment storage, transportation and use adaptability test, temperature gradual change test, electronic components stress screening test
Standards
GB/T2423.1-2001、GB/T2423.2-2001、GB/T10592-2008、GB/T10589-1989、GB/T11158-1989、IEC68-2-1、IEC68-2-2
Steps
1. Power supply voltage is AC380V +/- 10%, three-phase five-wire system, Ambient Temperature 5~ 28 ℃, Humidity ≤ 85% R.H. Use deionized water or purified water as water source.
2. Turn on the power of the device and start the function button through the operation panel, including lighting and circulating fan.
3. Set temperature parameters, such as Temperature range -30~ 150 ℃, Heating rate 1.0~ 3.0 ℃/min, Cooling rate 0.7~ 1.0 ℃/min, Timer Range 0~ 999h.
4. Start the heating and cooling system and monitor Temperature Uniformity, Fluctuations and deviations through the Control system.
5. During the testing process, samples can be monitored through observation windows and test holes to ensure the smooth progress of the test.
6. After the test, turn off the heating and cooling system, disconnect the power supply, and perform equipment cleaning and maintenance.
Notice
• When the equipment is running, ensure that the working Ambient Temperature is 5~ 28 ℃, Humidity ≤ 85% R.H, to avoid extreme conditions affecting the performance.
• Use deionized water or purified water as a water source to prevent impurities from damaging the humidification system.
• Power supply voltage check before starting is AC380V +/- 10%, three-phase five-wire system, to prevent voltage instability caused by failure.
• When the circulating fan is not started or overloaded, the refrigeration unit and heating system cannot be started to ensure the normal operation of the interlock device.
Safety protection system, such as high voltage control, overvoltage, overload, overtemperature, power failure, etc., to prevent equipment damage.
• The observation window has a built-in heating wire to prevent frosting, avoid direct touch in a low temperature environment, to prevent burns or damage.
• Test hole stopper is silicone rubber low foam material, timely sealing after use to maintain thermal insulation efficiency.
• The total power of the equipment is 3~ 13.5KW, ensuring that the power supply line can withstand the load and avoid accidents caused by overload.
• Disconnect the power during maintenance and follow the Operation Manual to prevent electric shock or mechanical injury.
