Stainless steel high and low temperature alternating test chamber
Source: website release time: November 2, 2018 17:15:00 reading: 949
Stainless steel high and low temperature alternating test chamber Main technical indicators:
1、 Studio size: selection
2、 Dimensions: optional
3、 Temperature range: -40～150℃
4、 Temperature fluctuation: ±0.5℃
5、 Temperature uniformity: ≤±2℃：
6、 Heating time: 0～+150℃70min
7、 Cooling time: 20～-0℃20mln
8、 Power Supply: 220V50Hz
9、 Wind speed: ≤1．7m/s；
10、 Power: The operation technical data of products above 4kw are measured under room temperature 25 ℃, relative humidity ≤ 85% R.H, no-load and normal pressure in the test chamber, and the temperature is constant for two hours.
Stainless steel high and low temperature alternating test chamber Air conditioning:
1. Air circulation device: built in air conditioning room, circulating air duct and centrifugal fan;
2、 Air heating mode: nickel chromium alloy electric heater;
3、 Air cooling mode: multistage diaphragm air heat exchanger (refrigeration evaporator)
4、 Air conditioning mode: forced ventilation, internal circulation, balanced temperature regulation method. That is, when the target temperature requirements are higher than room temperature +At 15:15, the refrigeration system doesn't work, and the central control system amplifies and models the temperature signal collected in the box/ Data conversion, nonlinear correction and temperature setting value (target value) is compared, the deviation signal obtained by PID operation, output adjustment signal, automatically control the output power of the heater, so that the heating and heat dissipation in the test chamber can achieve a dynamic balance, and achieve the purpose of constant temperature. When the target temperature is lower than room temperature + 15, the central control system will amplify and model the temperature signal in the box when the refrigeration system works continuously/ Data conversion, nonlinear correction and temperature setting value (target value) is compared, the deviation signal obtained by PID operation, output regulation signal, automatically control the output power of the heater, and finally make the temperature in the box reach a dynamic balance.
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Stainless steel high and low temperature alternating test chamber Refrigeration system:
Low temperature process with exquisite workmanship: oxygen free copper pipe, nitrogen filling welding and high pressure holding and leakage prevention technology are adopted for low temperature connection pipeline to ensure welding quality; the length, inclination, gradient and direction of pipeline are strictly calculated to achieve good refrigeration effect; the threaded connection adopts American "Loctite" anaerobic adhesive sealing, basically put an end to freon leakage of domestic low temperature test equipment
Stainless steel high and low temperature alternating test chamber Measurement and control system:
Temperature measuring element: imported from USA PTl00 high precision platinum resistance. Central temperature controller: Using Ruikoyom independently developed a Chinese display temperature program control regulator. The controller adopts LCD liquid display touch screen, and the control system adopts man-machine dialogue mode. It has automatic, intelligent and humanized design. It can display and set test parameters, program curve, working time, working state of heating system, refrigerating unit and circulating fan. At the same time, it has the function of automatic operation of test program and self-tuning of PID parameters; it can automatically combine the work of heating system, refrigeration system, circulating fan, over temperature alarm and other subsystems, so as to ensure the high control quality of the whole temperature control system; the control system also has the functions of self detection and self diagnosis, which can display and alarm automatically.
Stainless steel high and low temperature alternating test chamber box Body structure:
1、 The outer surface of the insulation box is not frosted, but the glass insulation box is not frosted.
2、 On the side of the box body 050 test hole.
5、 Water supply tank: front type, more convenient to add water
4、 Studio Lighting: 7W energy saving lamp.
Stainless steel high and low temperature alternating test chamber Overview:
Stainless steel high and low temperature alternating test chamber Thirteen five Thirty eight four Ninety seven six Also known as high and low temperature aging chamber It is widely used in aviation, aerospace, military, electrical, electronic products and other products in high temperature and humidity test under atmospheric pressure. For users to check the whole machine (or components), electrical appliances, instruments, materials, coatings, coatings, etc. shall be subject to corresponding aging tests, so as to evaluate the performance and quality of the tested products.