Overview
HZAOC GDJW-50B low/high temperature test Chamber is suitable for 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 of electronic components. 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.
Features
1. The box adopts the overall structure, the inner side is 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. 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 surround 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. High Accuracy Digital Temperature Controller for Accurate and Stable Control
8. Control system with Safety protection measures, including phase loss protection, over temperature protection, etc
9. Equipped with independent over-temperature protector and interlock device
Principle
The test Chamber achieves temperature control through the heating system and the refrigeration system. The heating system adopts a porcelain frame nickel-chrome wire electric heating device, which is controlled by a solid-state relay by outputting a controllable pulse duty cycle PID signal from the meter. The low temperature refrigeration adopts a French "Taikang" fully enclosed Compressor unit and uses R404A environmentally friendly refrigerant. The temperature sensor is placed in a trend, and the Control system monitors the temperature through the PT100 temperature sensor, and uses the upper air supply and lower air return mode for air circulation.
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. Connect AC380V +/- 10% three-phase five-wire power supply
2. Provision of deionized water or purified water as a source of water
3. Set temperature parameters and timing time through the operation panel
4. Start the circulating fan
5. Start the heating or cooling system
6. Monitor the test process through the observation window
7. Power off the device after the test is completed
Notice
• Ambient Temperature should be maintained at 5~ 28 ℃
• Environmental humidity should be ≤ 85% R.H.
• Power supply voltage must be AC380V +/- 10% three-phase five-wire system
• Must use deionized water or purified water as a source of water
• When the circulating fan is not started or overloaded, the refrigeration unit and heating system cannot be started
• Pay attention to observe the working status of each protection device when the equipment is running
• Regularly check the sealing performance of the test hole stopper
