Talking about the maintenance standard of high and low temperature alternating heat and humidity test chamber
A variety of commonly used laboratory equipment, Haotian Environmental Testing Equipment Association, including: constant humidity box, high and low boxes, hot and cold impact box, test box, salt spray test box use machine ... but at the same time, maintenance Work must be done to ensure proper and long-term stable operation of the machine. General corporate laboratories provide experimental equipment maintenance needs, day care, monthly maintenance, maintenance season, and annual maintenance differences. And fill in the relevant forms, day care is very simple, just do it for 5 seconds. After considering the repair and maintenance of environmental protection equipment, I hope to help you with the number:
Maintenance site:
1, constant temperature and humidity box maintenance problem
1. Laboratory test cloth wet replacement bulb
When the test is not clean cloth or hard surface, or complete temperature control, continue to do the temperature and humidity control of the ball, you must change the cloth before the test. Approximately 3 months of trials to replace the 1, when the temperature is replaced, the body is clean cloth [ie, the temperature sensor, replace the new test application first to clean the cloth.
2. Wet ball temperature and humidity test room and water adjustment level
The level of the water pipe is not too high, the water overflow pipe or the water absorption rate is low, so that the wet cloth ball test is abnormal, affecting the accuracy of the wet ball, and maintaining a water level of about 6 can be sufficient. Water level adjustment of water pipes, adjustable high and low water tanks. Two or three times, almost every test needs to be done to check and replenish moisture.
3. Inspection of laboratory over-temperature protection device
Laboratory operation, over temperature protection set high value plus 20 ° C ~ 30 ° C. When the internal test temperature rises to the over-temperature protection set value, the heater of the power supply stops, the “overheating†overheat warning light is on, but the fan is still running. If it is running for a long time and unattended, be sure to check the over-temperature protection before operation. , whether it is correct [wet bulb temperature protection device should be set 120 °C.
4. Clean dust test chamber condenser
The condenser should be regularly maintained on a monthly basis, using vacuum cooling attached to the dust to inhale the clean condenser network or use high-pressure air to spray dust.
5. Laboratory cabinet for cleaning and maintenance of external cabinets
1) The impurity test room in action should be moved before relocation.
2) The power distribution room is cleaned more than once a year, cleaning, vacuum cleaner, can be used for indoor dust, and can be inhaled.
3) The external fuel tank must be cleaned once, and it can be washed with soap and water for one year or longer.
6. Humidifier inspection and maintenance laboratory
The water in the humidifier should be changed to once a month to ensure clean water, and the humidifier water tray should be cleaned once a month to ensure smooth water flow. Many laboratories now use water, but still hope that the relevant monthly cleaning of the glass is actually quite simple.
Second, high and low temperature Note:
1, the temperature and humidity of the high and low temperature laboratory is an important factor affecting the performance of the device, which may cause corrosion of mechanical parts, metal mirror Xia Jiang, high and low temperature mechanical Bufen lead to error or end of performance degradation; Zaocheng high temperature and low temperature optics Component gratings, corrosion in thermostatic electron microscopes, focusing lenses, aluminum, etc., caused by insufficient light, stray light, noise, and even equipment stop working, thus affecting high and low temperatures, maintenance life should be corrected regularly.
2, high and low temperature use for a period of time, the Ministry of Interior will accumulate the guidance of the engineer, dust, zui good electric thermostatic drying oven or through a regular maintenance engineer a certain amount of work into a high-low temperature range of dust jackets, while the radiator re-tighten Solid heating elements, sealed optical frame window cleaning, if necessary, calibrated, cleaned mechanical parts and necessary lubrication, after rejuvenation, then carry out the necessary inspection, adjustment and recording.
3, high and low temperature working environment, dust and corrosive gases can also affect the flexibility of mechanical systems, reduce limit switches, buttons are all kinds, the reliability of optical coupling is one of the reasons for the study caused by corrosion of aluminum parts.
The temperature is high, the temperature is fast, and it is usually better not to add water to avoid the impact on the machine.
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