A humidity meter is a device that helps that helps measure the amount of humidity in the ambient atmosphere. The basic meters are used in simple applications such as measuring humidity in wood or raw stock. However, there is another league of highly advanced humidity sensors and meters that help determine the amount of humidity and moisture in industrial operations. The presence of humidity or moisture can be detrimental to several different operations.
Overview of applications of the humidity meter
The scope of the applications of a humidity or moisture meter is very wide, and it continues to grow. Here are some applications wherein these meters prove to be especially useful:
Stack emission monitoring: The US Environmental Protection Agency has laid down certain mandates pertaining to the continuous monitoring of various substances in stack emissions. Several different industries come under the purview of these mandates. These facilities include coal fired power plants, gas turbines, refineries, cement manufacturing kilns, incinerators and so on.
Drying and blow off: Various substances such as food products, paper, seeds and lentils, metal parts, and gypsum need to be thoroughly dried before they are further processed or stored. A humidity sensor helps establish the exact level of moisture in these materials and this helps operators decide the readiness of the material for the next stage.
Metalworking: Certain metalworking procedures such as annealing and surface treatment need to be carried out under special atmospheres. The parameters in the atmosphere need to be strictly monitored and controlled if these metalworking procedures are to be successful. This is another area where a humidity meter comes in handy.
General industrial applications: There are a myriad of advanced industrial processes wherein the level of moisture, if not established accurately, can prove detrimental to the entire process and systems. These applications would include large fuel cells and a basic oxygen furnace precipitator. There are several other general industrial applications where humidity meter and sensor proves useful.
Food and beverage processing: Food items such as wafers and biscuits need to be entirely free of moisture content before they are packed. Hence, they are put through drying or heating systems to purge any excess moisture content. These systems are often fitted with a humidity meter to monitor the moisture levels in various food items. Food processing ovens that need moisture control invariably need to rely on moisture sensors for the job.
Thus, it is evident that a number of industrial applications would be inefficient and incomplete if not for a humidity meter or sensor. Today, the market offers meters or sensors that go beyond the use of conventional techniques such as chemicals, compressed air, or wet bulb techniques. These advanced meters make use of a solid state humidity measurement technique that offers unmatched results to industrial users every time.