Overview
HZAOC GDJW-225E 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. Stress screening test can also be carried out on electronic components.
Features
1. The box adopts the overall structure, the inner side adopts 1.0mm SUS304B stainless steel plate, and the outer side adopts 1.0mm Cold rolled steel plate
2. Door sealing with double-decked silicone rubber sealing material
3. The observation window is a multi-layer conductive film tempered hollow Glass, with built-in special heating wire anti-frosting and lighting
4. The side of the box is equipped with φ 50mm test hole, and the stopper material is silicone rubber low foam
5. The heating device adopts porcelain frame nickel-chromium wire electric heating device, which has small thermal inertness and long service life
6. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, using R404A environmentally friendly refrigerant
7. Control system adopts High Accuracy Digital Temperature Controller, accurate and stable control, long-term operation does not drift
8. Safety protection system, including phase loss protection, over-temperature protection, leakage protection, etc
Principle
The test Chamber realizes temperature control through evaporators, electric heaters, humidifiers, fans and other equipment in the air conditioning cabinet. The heating system adopts a porcelain frame nickel-chrome wire electric heating device, and the controllable pulse duty cycle PID signal output by the meter is controlled by a solid-state relay. The refrigeration system adopts a French "Taikang" fully enclosed Compressor unit and uses R404A environmentally friendly refrigerant. The temperature sensor is placed in a trend, and the temperature distribution in the working room is achieved by using the upper air supply and lower air return mode.
Applications
Electrical, electronic products, components, parts and materials of high and low temperature environmental 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. Connect AC380V +/- 10% three-phase five-wire power supply
2. Provision of deionized water or purified water as a source of water
3. Set the required temperature parameters and timing time through the operation panel
4. Start the equipment for high and low temperature testing
5. Monitor the test process through the observation window
6. Power off the device after the test is completed
Notice
• Ambient Temperature should be kept within 5~ 28 ℃
• Environmental humidity should be ≤ 85% R.H.
• Must use deionized water or purified water as a source of water
• The refrigeration unit and heating system cannot be started when the circulating fan is not started or overloaded
• Pay attention to observe the status of each protection indicator light when the equipment is running
• Regularly check the integrity of the sealing plug of the test hole
