Overview
HZAOC GDJW-250C 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 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, using R404A environmentally friendly refrigerant.
5. Control system with High Accuracy Digital Temperature Controller and PT100 Temperature Sensor, accurate and stable control, long-term operation without drift.
6. Safety protection measures are in place, including phase loss protection, over-temperature protection, unit overload protection, etc., to ensure the safe operation of equipment.
Principle
The test Chamber achieves temperature control through the heating system and the refrigeration system. The heating device adopts a porcelain frame nickel-chrome wire electric heating device, which is controlled by the instrument outputting a controllable pulse duty cycle PID signal and controlled by a solid-state relay; the low temperature refrigeration adopts a fully enclosed Compressor unit and uses an environmentally friendly refrigerant. The temperature sensor is placed in a trend, and the air is circulated in the upper air supply and lower air return mode to ensure Temperature uniformity and Stability.
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
Connect the power supply to ensure that the voltage is 380V +/- 10%, using a three-phase five-wire system.
2. Provide deionized water or purified water as a source of water.
3. Set the temperature parameters and Timer Range through the operation panel.
4. Start the device and observe the temperature changes and operating status.
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 not exceed 85% R.H.
• Must use deionized water or purified water as a source of water
• Ensure that the equipment is well ventilated when running
• Safety protection device is checked regularly
• Non-professionals should not disassemble or repair the equipment
