High and low temperature test chamber common faults and maintenance methods
Due to volume is large, high and low temperature testing machine isn't very convenient for carry or move and circuit complexity, failure often allows users to attack, to the user can fast judgment fault myself and solve in time, here are some of the maintenance of high and low temperature test chamber common faults and processing methods.
When temperature and humidity controller display temperature anomalies situation 1, please check whether the control panel of the super temperature protector set at 150 ℃ and 2, please check whether the room the cycle of motor damage without operation, part 3, please check whether the temperature of the solid state relay burned a short-circuit. If the heater is not burning, please use the three with the ac voltage meter, the position of the gear drive voltage to 600 v, the red and black on the of the line number in the T on both sides of a solid state relay communication, set the humidity, the temperature setting of the part 0 ℃, the temperature of the solid state relay indicator light does not light up, if the measured voltage value did not change, keep below 10 v represents the solid state relay burned appear short circuit condition.
1, high and low temperature testing machine, the temperature control instrument adopts imported instrument, with the PID, the SSR output, fast self setting, digital display, easy reading.
2, with the studio, the door is shell with high temperature sealing strip and clamping device, effective guarantee of box sealing and heat preservation performance.
3, the French "taikang" original closed compressor is used in the refrigeration system, ensure the temperature stability of the high and low temperature test chamber.
The daily maintenance of high and low temperature test chamber and the main technical index of the simple test, can guarantee the high and low temperature test chamber work in the best state.
4, over temperature protection and control circuit overload protection, short circuit protection, safe and reliable use.
5, studio and try for stainless steel materials, for good-quality and manufacture plastic spraying outside the enclosure, beautiful shape.
The following, what time is the high and low temperature test chamber maintenance items to note:
1, high and low temperature testing machine, the temperature and humidity are the important factors influencing the device performance, it can cause the rust of mechanical parts, metal mirror finish fall, cause the error of the mechanical parts of the high and low temperature test chamber or performance degradation; Caused by high and low temperature test chamber optical components such as grating, reflector, focusing mirror, such as corrosion of aluminum film, create light and stray light, noise, etc., and even equipment to stop working, and thus affect the service life of high and low temperature test chamber, the correction should be regular maintenance.
2, high and low temperature testing machine, dust and corrosive gas in the working environment also can affect the mechanical system flexibility, reduce all kinds of limit switches, buttons, the reliability of photoelectric coupler, is also must learn parts aluminum film corrosion is one of the reasons.
3, high and low temperature testing machine using a certain cycle, internal will be accumulated a certain amount of dust, under the guidance of the best by maintenance engineers or engineers in regularly open the high and low temperature test for dust removal work inside a box cover, radiator retightened from each heating elements at the same time, to clean optical box seal window, carries on the calibration when necessary, to the necessary cleaning and lubrication of mechanical parts, finally restored to its original state, then some necessary testing, calibration, and record.
High and low temperature test chamber is to simulate natural high and low temperature environment change, widely used in electronic, electrical products and other products, spare parts materials in the use of storage and transportation process adaptability to environment temperature test. Especially the electrical properties change of mechanical properties. A: low temperature test method, test B: high temperature experiment method. The products in A low temperature and high temperature test.
High and low temperature test box adopts the most advanced temperature control mode, balanced temperature control mode, and thus can be automatically obtained by high temperature to low temperature, or by the low temperature to high temperature of the reliable and accurate test temperature.