Overview
HZAOC GDJW-100D high and low temperature alternating 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. The box body adopts the overall structure, the inner side is 1.0mm SUS304B stainless steel plate, the outer side is 1.0mm Cold rolled steel plate spraying, the thermal insulation material is ultra-fine Glass thermal insulation cotton, and the door sealing is made of double-decked silicone rubber sealing material.
Features
1. The box structure is sturdy, the inner stainless steel plate is corrosion-resistant, and the outer spray is beautiful and durable.
2. The observation window is a multi-layer conductive film tempered hollow Glass with built-in heating wire to prevent frost and lighting.
3. The heater adopts porcelain frame nickel-chrome wire electric heater, which has little thermal inertness and long service life.
4. The control system adopts LCD Touchscreen temperature and humidity controller and Schneider electrical components, which is easy to operate.
5. With a variety of safety protection functions, including high voltage control, overvoltage, overload, phase loss protection, etc.
6. The cooling capacity adjustment adopts the shunt method, ensuring smooth and reliable control.
7. Support fixed value and program operation, can store multiple process Linear dispersion, easy to call.
Principle
The high and low temperature alternating test chamber realizes temperature control through heating and cooling system. The heater adopts porcelain frame nickel-chrome wire electric heater, which is controlled by solid-state relay through controllable pulse duty cycle PID signal output by the instrument; the refrigeration system adopts shunt method to adjust the cooling capacity. The control system adopts continuous PID control mode, which monitors the trend temperature through temperature transducer, and realizes the air supply mode of upper air supply and lower air return 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
Steps
1. Turn on the power and lighting operation buttons.
2. Select the operation mode (fixed value or program operation) on the LCD Touchscreen controller.
3. Set temperature parameters and programs, and write program names for easy inquiry.
4. Invoke pre-stored process Linear dispersion or set up a new program.
5. Start the device and monitor real-time display data such as set temperature, measured temperature, etc.
6. After running, check the equipment status and turn off the power.
Notice
• Ensure that the circulating fan starts normally when the equipment is running, otherwise the refrigeration unit and heating system will not work.
• Regularly check safety protection devices, such as over-temperature protectors, high voltage controls, etc., to ensure normal function.
• To avoid forced operation when the equipment fails, find the cause according to the fault number and repair it in time.
• When using the test hole, make sure the stopper sealing is good to prevent temperature leakage.
• After the device is powered off, terminate or run continuously from the breakpoint according to the setting selection procedure.
