How to remove the compressor overpressure alarm of high and low temperature test chamber/constant temperature and humidity test chamber

How to remove the compressor overpressure alarm of high and low temperature test chamber/constant temperature and humidity test chamber

With the rapid development of society, the market demand of manufacturers has increased, resulting in the continuous emergence of various problems. For the failure of the constant temperature and humidity box, the constant temperature and humidity box manufacturer Kewei Meite Instrument will teach you a few troubleshooting skills.

Constant temperature and humidity test chamber, constant temperature and humidity chamber, compressor can not start, fuse wire broken; Bad temperature switch; Wiring is loosened; Main motor thermal relay action; Fan motor thermal relay action; Bad transformer; No power input (control constant temperature and humidity box compressor); The fault is not eliminated (control of the compressor of the high and low temperature test chamber); Controller failure.

The air switch problem of the constant temperature and humidity box compressor is large or tripping the user when the compressor is started; The input voltage is too low; The star-delta transition interval is too short (should be 10~12 seconds); Failure of the hydraulic cylinder (no reset); Failure of the inlet valve (too much opening or jamming); Loose wiring; host failure; main motor failure; 1TR time relay bad (relay controlled constant temperature and humidity box compressor).

Constant temperature and humidity test chamber manufacturerConstant temperature and humidity chamber compressor exhaust temperature is high (more than 100 °C) high and low temperature test chamber compressor coolant level is too low (should be visible from the oil scope, but not more than half); The oil cooler is dirty; The oil filter core is clogged; Failure of the thermostat valve (broken element); The oil shut-off solenoid valve is not energized or the coil is damaged; The diaphragm of the oil cut-off solenoid valve is ruptured or aged; Fan motor failure; Damage to the cooling fan; The exhaust duct is not smooth or the exhaust resistance (back pressure) is large; The ambient temperature exceeds the specified range (38°C or 46°C); Failure of the temperature sensor (control of the constant temperature and humidity chamber compressor); Whether the pressure gauge is faulty (relay controls the constant temperature and humidity chamber compressor).

  Constant temperature and humidity test chamber: The compressor pressure of the constant temperature and humidity chamber is low, and the actual gas consumption is greater than the output of the compressor in the high and low temperature test chamber; Failure of the bleed valve (cannot be closed when loaded); Failure of the intake valve; Failure of hydraulic cylinders; The load solenoid valve (1SV) is faulty, and the pressure valve is jammed; There is a leak in the user's pipe network; The pressure setting is too low; Failure of the pressure sensor (control of the compressor in the constant temperature and humidity chamber); Failure of pressure gauge (relay control constant temperature and humidity box compressor); Failure of pressure switch (relay control constant temperature and humidity box compressor); Leakage of pressure sensor or pressure gauge input hose;

Constant temperature and humidity test chamber, compressor exhaust pressure is too high, inlet valve failure; Failure of hydraulic cylinders; Load solenoid valve (1SV) failure; The pressure setting is too high; Pressure sensor failure (Intellisys controlled constant temperature and humidity chamber compressor); Failure of pressure gauge (relay control high and low temperature test chamber compressor); Faulty pressure switch (relay controlled constant temperature and humidity chamber compressor).

Constant temperature and humidity test chamber manufacturers constant temperature and humidity box compressor fuel consumption is large or compressed air oil content is too much, the correct position should be observed when the constant temperature and humidity box compressor is loaded, at this time the oil level should not be higher than half; clogged return line; The installation of the return pipe (the distance from the bottom of the oil separator core) does not meet the requirements; The discharge pressure of the constant temperature and humidity box compressor is too low when it is running; rupture of the oil separator core; The internal partition of the separating cylinder is damaged; There is oil leakage in the compressor of constant temperature and humidity box; Coolant deterioration or overdue use.

      Constant temperature and humidity test chamber, constant temperature and humidity box, compressor current, high voltage, too low; Loose wiring; The compressor pressure of the high and low temperature test chamber exceeds the rated pressure; Oil separator core blockage; Contactor failure; host failure; main motor failure; 

The constant temperature and humidity chamber manufacturer Kewei Meite instrument structure testing, mainly with the help of some instruments and meters equipment and tools, to observe whether there are cracks and deformations in the structural part of the test piece, whether the components and solid parts fall off or loosen, whether the rotating and lifting parts are stuck or do not move smoothly, whether the seals are degummed and so on. The general principle of the electrical part of the test piece is to "divide the whole into zero, and give priority to the large". That is, the whole machine is powered on, and the electrical performance of the test piece is tested through the instrumentation, and if the test result meets the requirements, that is, it is normal, the whole machine or large system will pass the test first. Otherwise, if the whole machine is faulty when powered on, the whole machine will check each system one by one and zero one by one until the problem is found and solved.