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Temperature and humidity meter calibration

by:Guangli     2020-03-26
< p> a digital temperature and humidity meter is a useful tool to measure the relative humidity in a given area. The equipment is usually stored in a cigar box of cigars or other objects when they come in handy. In order to maintain the humidity in the cigar box accurate constant, must occasionally calibration of digital temperature and humidity meter. Below is a description: step 1 - A salt solution, the China cups, plastic or metal salt and water. Fry the components together, until all the salt particles is wet. Step 2 - Seal combination and hygrometer put the cup in a plastic bag, but you can be sure that it sits on a stable flat surface. Hygrometer is put in the packing bag for good, but will never allow it to the contact inside the cup, because it may damage the equipment. In order to ensure that this won't happen, Settings will not be found to have a child or by any type of external force disturbance. In addition, this group of lens should be placed in areas with constant at room temperature. The inside of the cabinet will be a very good advice. Just make sure it is far away from any heat source, such as direct sunlight, heating vents, ventilation equipment, etc. When all the preparation work after the completion of the sealed plastic bags. Step 3 - Read the results in order to ensure that moisture meter reads the correct humidity inside the plastic bag, about 8 ~ 12 hours after placing it wait time, please read on the device, and it is still within the plastic bag. If the moisture meter is accurate, it should be 75%. Sometimes, it can be read either above or below normal readings ( 72% or 78%) 3%. In this case, to continue the calibration steps. Step 4 - Calibration equipment should be reading is below or above 75%, adopt digital temperature and humidity meter out of the calibration quickly and simply by pressing buttons of plastic bags. If you don't know where the calibration button, must with the help of the user manual check location. If the device does not specify any calibration button, and then find the reset button. Press the reset key, as soon as possible to ensure the normal reading back to 75%. Step 5 - If there is no calibration button some digital hygrometer may no calibration or reset button, but this is very good. On the contrary, minus the value obtained by 75% of the equipment and take the difference of notes. For example, if you are read from the results is 72%, the difference is 3. When the moisture meter reading in the future, and 3, get the value of, to get the correct information. Before measuring the relative humidity of the cigar box, make sure hygrometer, stable for about 2 hours. < / p> < p> chaozhou li electrical appliance factory specializing in the production of light a night light, temperature and humidity meter, LED rechargeable small desk lamp. < / p> < p> the article source: li 3 c electric light a night light ea - gl。 com/ < / p>
SAA Lamp holder table lamp is generally used to g45 led bulb.
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