A The pressure control system of the glove box achieves pressure stability by adjusting the intake and exhaust valves. When the pressure sensor detects that the pressure inside the glove box is below the preset lower limit, the control system will issue a command to open the intake valve, allowing inert gas to slowly enter the glove box to increase the pressure. On the contrary, when the pressure exceeds the preset upper limit, the control system will open the exhaust valve to release excess gas from the glove box to reduce the pressure. During the intake or exhaust process, the pressure sensor continuously monitors pressure changes and feeds back new data to the control system, allowing it to adjust the opening and closing of the intake and exhaust valves in a timely manner based on dynamic pressure changes, thereby maintaining dynamic stability of the pressure inside the glove box.

A In the pressure control system of the glove box, pressure sensors can sensitively sense the pressure inside the box based on physical effects such as pressure resistance or capacitance changes, and convert the monitored pressure into electrical signals in real time. Subsequently, this electrical signal will be quickly transmitted to the control system, which will accurately calculate the real-time pressure value inside the box based on the received signal data. When the pressure inside the box is lower than the preset lower limit, the control system will immediately issue a command to open the intake valve. At this point, inert gases such as nitrogen and argon will be introduced into the glove box through the inlet valve, gradually increasing the pressure inside the box. When the pressure inside the box exceeds the preset upper limit, the control system will open the exhaust valve to discharge the excess gas inside the box, in order to reduce the pressure.

A The glove box achieves internal environmental stability through gas circulation system and gas purification mechanism. The circulating fan drives the uniform distribution of gas flow, and its speed and air volume can be adjusted according to actual needs. The gas passes through the circulating pipeline and reaches the purification column. The molecular sieve and copper catalyst in the purification column adsorb the moisture and oxygen in the gas, and then pass through the organic solvent adsorber to adsorb organic impurities and odors, thereby purifying and improving the gas, providing a suitable and stable gas environment for glove box experiments or operations.

A When there is a purification failure in the glove box, the humidity or oxygen content inside the box may not be able to decrease to the set value. Even if the gas circulation system runs for a long time, the purification effect will still be unsatisfactory, or there may be odors or high levels of organic impurities inside the box. At this point, it is necessary to check whether the purification column has failed. Molecular sieves and copper catalysts cannot effectively remove water and oxygen after saturation adsorption. It is necessary to regularly regenerate or replace the purification column according to the requirements of the equipment manual. The adsorption material inside the organic solvent adsorber may also become saturated, resulting in the inability to adsorb organic impurities and odors. The organic solvent adsorption material should be replaced regularly.

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A The usage environment has an impact on the lifespan of the glove box. Mikrouna suggests placing the glove box in a stable, dry, and well ventilated environment, avoiding direct sunlight, high or low temperatures, and high humidity. Avoid places with potential sources of pollution around the placement site, such as areas with chemical reagent leaks or high levels of dust. The above environment will affect the material properties and lifespan of the glove box.

A For the detection of gas leakage faults in glove boxes, preliminary judgment can be made by observing whether the pressure inside the glove box cannot be maintained stably and whether the oxygen or moisture content has increased beyond the normal range. Furthermore, the oxygen-containing method can be used to detect whether there is any leakage in the glove box. By measuring the change in oxygen concentration in the sealed box chamber from the beginning to the end of the inspection, the hourly leakage rate of the sealed box chamber can be calculated.

A If there is a malfunction with the glove box vacuum pump, first check the power supply, confirm that the vacuum pump power plug is plugged in and the socket is powered on, and use other electrical appliances to test the socket. If the power supply is normal, check if the power cord is damaged, broken, or short circuited, as it may cause power supply interruption. At the same time, carefully inspect the connection lines between the vacuum pump and the glove box, including signal lines and power lines, to ensure that all connection heads are stable and plugged into the corresponding interfaces. Loose connections may cause abnormal signal reception or unstable power to the vacuum pump, affecting its normal operation.