| 1.Electrical control system: A. the controller USES color touch screen Korean 8226S Chinese and English display +PLC + temperature control module;B. Operation mode: program mode. Control object: exposure temperature of the test zone, preheating temperature of the high-temperature constant temperature zone, preheating temperature of the low-temperature constant temperature zone, defrosting temperature of the low-temperature constant temperature zone. D. Program capacity: 100 programs with a maximum of 3 steps for each program; Each program can set 1000 cycles, with a maximum of 9999cycles; E. Set range: upper limit of high greenhouse preheating temperature: +205ºC; Lower limit of precooling temperature in low greenhouse: -70ºC; Laboratory (test section) : temperature impact upper limit +155ºC; Lower limit of temperature impact: -70ºC; F. Display resolution: temperature: 0.1ºC, time: 0.1min; G. Communication functions: rs-232 interface and USB interface, with local and remote communication functions; H. Control mode: anti-integral saturated PID, fuzzy algorithm; BTC balance temperature control mode; I. whistles, fault alarm and their causes, process, function, fault record and overtemperature protection, upper and lower temperature protection, power protection, lee on the sensor selection, test pause, alarm output, time signal output, output end of the test, the temperature reaches output, timing, start and automatic stop function, and self-diagnosis function; Function: microcomputer multi-function control, with each group of refrigeration compressor, solenoid valve, heating HEATER and other automatic output control functions; equipped with safety inspection and press device, in case of abnormal failure, the fault status will be immediately displayed via LCD text and the power will be cut off; it can be set by year, month, day, hour and hour; with operation and maintenance accumulated time display function, for machine operation time and maintenance reference; the opening and closing time of the LCD backlight can be programmed to extend the service life of the backlight; you can choose multiple screens of single-section control or multi-section program to increase its operation; pause (HOLD) in the execution of the program, skip (ADV) and engage in other programs; power failure reset function, can choose BREAK, COLD, HOT, can be set at will; test data can be automatically generated EXCELL documents, temperature graphs, you can view and download. |
| 3. Heating and air supply circulation system: A. Multi-wing centrifugal circulation fan, made of aluminum alloy with strengthened axis and rotating blades resistant to high and low temperature, to achieve forced convection;B. High temperature/ring temperature exposure fan: 3 arc, 400W centrifugal; Low temperature exposure fan; 3 conduct, 400W centrifugal; C. Nickel-chrome electrothermal wire heater; D. Heater control mode: contact-free equal-period pulse width adjustment, SSR (solid state relay). |
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