Overview
HZAOC GDW-50A low/high temperature test chamber is suitable for the adaptability test of electrical, electronic products, components, parts and materials in high and low temperature environment storage, transportation and use, as well as temperature gradual change test, and stress screening test for electronic components.
Features
1. The box adopts the overall structure, the inner side is imported SUS304B stainless steel plate, the outer side is Cold rolled steel plate sprayed, and the thermal insulation layer is made of ultra-fine Glass thermal insulation cotton.
2. The door is made of double-decked silicone rubber sealing material to ensure sealing.
3. The observation window is a multi-layer conductive film tempered hollow Glass, with built-in special heating wire to prevent frost, and equipped with lighting.
4. The side of the box is equipped with a 50mm test hole with a silicone rubber plug, providing both thermal insulation efficiency.
5. The heater adopts a porcelain frame nickel-chrome wire electric heater, which has little thermal inertia, long service life, and stable and reliable control.
6. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, and the core refrigeration components are imported brand products from many countries.
7. Control system adopts High Accuracy Digital Temperature Controller, accurate and stable control, long-term operation does not drift.
8. Safety protection system, including independent over-temperature protector, phase loss protection, phase sequence error protection, overvoltage, overload, leakage and other multiple protection.
9. 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 Temperature uniformity.
Principle
The equipment heats or cools the air in the working room through the evaporator, electric heater, fan and other components in the air conditioning cabinet. The Control system controls the solid-state relay to adjust the output power of the electric heater through the PID algorithm according to the temperature signal fed back by the PT100 temperature measurement Sensor, or adjusts the cooling capacity of the refrigeration system through the shunt method, so as to achieve accurate temperature control. The circulation mode of upper air supply and lower air return ensures uniform temperature in the box.
Applications
Electrical, electronic products, components, parts and materials high and low temperature adaptability test, temperature gradual change test, 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. Place the equipment in an environment that meets the requirements (room temperature below 28 ° C, well ventilated, and 80cm space is reserved around).
2. Connect the power supply that meets the requirements (AC380V +/- 10%/50HZ, three-phase four-wire system).
3. Start the device through the function buttons on the operation panel, and set the required temperature program, time and other parameters.
4. Place the sample to be tested in the studio and close the box door.
5. Start the test, and the equipment will run automatically according to the set program.
6. After the test, remove the sample and turn off the power of the equipment.
Notice
• Equipment Operating Environment Temperature should be in the range of 5 ℃~ + 28 ℃, and the average temperature within 24 hours should be less than or equal to 28 ℃.
• Environmental humidity should be ≤ 85%.
• Must use AC380 (+/- 10%) V/50HZ three-phase four-wire power supply.
• The operating environment should be below 28 degrees and well ventilated.
• Items cannot be placed within 80 cm of the front, rear, left and right of the equipment placement.
• Safety protection functions should be confirmed before operation.
• Do not open the door frequently while the equipment is running.
• Regularly check and clean equipment to ensure good ventilation and heat dissipation.
