Overview
HZAOC GDW-100E 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 material is ultra-fine Glass thermal insulation cotton.
2. The door is made of double-decked silicone rubber sealing material, the observation window is a multi-layer conductive film tempered hollow Glass, and is equipped with anti-frost heating wire and lighting.
3. The side of the box is equipped with a test hole with a silicone rubber plug, which has both thermal insulation efficiency.
4. The heater adopts a porcelain frame nickel-chrome wire electric heater, which has little thermal inertia, long service life, and stable and reliable control.
5. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, and uses R404A refrigerant, Miscellaneous core refrigeration components are original imported brands.
6. Control system with High Accuracy Digital Temperature Controller and PT100 Sensor, accurate and stable control, long-term operation without drift.
7. Safety protection system, including independent over-temperature protector, multiple electrical protection and interlocking devices, to ensure the safety of equipment and samples.
Principle
The test chamber realizes the temperature regulation in the working room through the evaporator, electric heater and circulating fan in the air conditioning cabinet. The refrigeration system uses Compressor refrigeration, and the refrigeration capacity is adjusted by the shunt method. The temperature sensor is placed in a trend, and the Control system controls the work of the heater and the refrigeration unit through the PID operation to control the solid-state relay through the PID operation to realize the precise temperature control of the return air circulation under the upper air supply to simulate the high and low temperature environment.
Applications
Electrical and electronic product testing, electronic component testing, component material testing, 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. Ensure that the equipment is placed in an environment that meets the requirements (room temperature below 28 ° C, well ventilated, and no debris within 80 cm around), and connect the AC380V three-phase four-wire power supply.
2. Start the device through the power button of the operation panel on the upper left of the device.
3. Use High Accuracy Digital Temperature Controller to set the required test temperature, time and other parameters.
4. Start the circulating fan, and after the system self-checks, the equipment starts to operate according to the set program for heating or cooling.
5. During the test, the conditions in the box can be observed through the observation window (the lighting can be turned on when necessary), or external test equipment can be connected through the test hole.
6. After the test reaches the set time or conditions, the equipment can stop running according to the program. After the temperature in the box approaches the Ambient Temperature, open the door and take out the test product.
Notice
• Equipment Operating Environment Temperature should be between 5 ℃ and 28 ℃, and the average temperature within 24 hours should be less than or equal to 28 ℃.
• Environmental humidity should be ≤ 85%.
• Must use AC380V (+/- 10%)/50HZ three-phase four-wire power supply.
• The operating environment should be below 28 degrees and well ventilated.
• No items can be placed within 80 cm of the front, rear, left and right of the equipment placement.
Before starting the equipment, make sure that the circulating fan starts normally, otherwise the refrigeration and heating system may not start due to the interlock device.
The equipment is equipped with an independent over-temperature protector, but the operator still needs to pay close attention to the operating status. If the fault indicator light is on, it should be checked in time.
• Regularly check the integrity of door sealing strips, test hole plugs and other components to ensure thermal insulation efficiency.
• Non-professional personnel should not disassemble or repair the refrigeration system and electrical Control system.
