Overview
HZAOC GDJW-800D 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 equipment Temperature range is -60~ 150 ℃, the studio volume is 800L, and the High Accuracy temperature control system is used to ensure Temperature Uniformity ≤ +/- 2.0 ℃, Fluctuation ≤ +/- 0.5 ℃.
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 with frost-proof heating wire and lighting
3. The heating device adopts porcelain frame nickel-chromium wire electric heating device, which has small thermal inertia, long life and stable and reliable control
4. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, key refrigeration components adopt imported brand products, and use R404A environmentally friendly refrigerant
5. Control system with Safety protection measures, including phase loss protection, over-temperature protection, leakage protection, etc., and with independent over-temperature protectors and interlocking devices
Principle
The equipment realizes temperature control through evaporators, electric heaters, humidifiers and fans in the air-conditioning cabinet. The temperature sensor is placed in a trend, and the air is circulated by the upper air supply and lower air return. The heating system outputs a controllable pulse duty cycle PID signal from the meter, and controls the electric heating device through a solid-state relay. The refrigeration system cools down through the Compressor unit and the refrigerant circulation. Control system monitors the temperature in real time and adjusts the heating and cooling output to ensure accurate and stable temperature.
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 Temperature Parameters and Timer Range (0~ 999h) through the operation panel
4. Start the device and observe the temperature change to the set value
5. After the test is completed, shut down the equipment according to the procedures
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
• Make sure that the circulating fan starts normally when the equipment is running
• Pay attention to observe the high voltage meter and fault indicator light, and deal with abnormalities in time
• Regularly check the status of sealing materials and insulation layers
