The Uses of Moisture Meters in Different Industry Sectors

A moisture meter is an instrument which is used to measure the water content in a given material or substance, generally expressed as a percentage value.

This information can be used to determine whether or not the material is ready for use, unexpectedly wet or dry or in need of closer inspection. Moisture meters are commonly used in a variety of materials science applications; and even more so in the quality control processes of manufacturers, especially in respect to foods, concrete and wooden products.

Industries which rely on wood as a raw material make especially heavy use of these instruments. For example, a newly cut log may have a moisture content which is as high as 75% and up. As any carpenter worth their salt knows, wood tends to shrink as it dries and can split or change in shape as a result; which is why wood is generally dried either in a kiln or air-dried before use. The drying process results in an end product which is between 10% - 20% water and the progress of drying is monitored using a moisture meter.

Moisture meters are used to measure the moisture content wood so that the woodworker can determine whether or not it is suitable for its intended use. Building inspectors, carpenters, hobbyists and others who work with wood often find themselves needing to know the moisture content of materials. Contractors who install wood flooring, for instance, need to establish the moisture content of the wood since matching this figure to the relative humidity in the area where the flooring is to be installed is important to prevent warping, buckling and cracked finishes.

Similarly, those engaged in laying concrete use a concrete moisture meter to determine the water content of their materials. These specialized moisture meters were developed as contractors saw a need for an instrument which could measure the moisture of their materials more accurately than those designed for use with wood.

In agriculture, crops (especially grains) are often measured for water content following harvests; the moisture levels of soil are also measured regularly both for agricultural applications as well as by building surveyors and civil engineers to determine the suitability of a given location.

Those conducting tests of indoor air quality also commonly employ a moisture meter to test the water content of materials to determine if the conditions in the building are conducive to the growth of mold and other organisms which negatively affect indoor air quality. The types of moisture meters used in a given application depend largely on the specifics of the material to be tested; the traditional style of meter uses conductivity testing with probes which must penetrate the material being analyzed. There are also non-destructive instruments which use impedance measurement to determine the moisture content of a given material.

These instruments are vital to a wide range of different scientific and industrial applications where the water content of a material or substance is critical to the outcome or the quality of a process or product. Whether in contracting, soil quality testing, production of consumer products or in the laboratory, a moisture meter is an incredibly useful and commonly employed instrument.

Andrew Long writes for scientific websites and a main area for content covers moisture meters and moisture analyzer products.

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Digital Panel Meters Supply Information

Digital panel meters calculate and demonstrate every variety of procedures and electrical changes, such as force, current, temperature, speed, and voltage in an alphanumeric or numeric organization, frequently as a bar graph. A lot of these displays possess totaling, recording, conditioning and added functionalities.

Display styles of a panel meters can be either alphanumeric or numeric. The Alphanumeric can display numbers and letters both. Numeric can display numbers only. When indicating a panel meter it is imperative to state the number of digits exhibited. Universal character sizes for digits on panel meters comprise 0.37 inches to 0.56 inches, bigger than 0.56 inches and smaller than 0.37 inches.

The most significant factor to take into account when indicating digital panel meters is the measurements. The majority of these meters are constructed to be placed upon a rack or in a panel, so the surface height and width are essential factors.

Some features are common to panel meters. These features consist of point options that are preset. These point options can be warning alarms, on/off switch, barograph display and changeable display. A meter with set point options has the capability to create control limits or establish points for procedural parameters such as speed, temperature, pressure or humidity. In a heating function, the unit transmits an off control signal when the set point temperature has come within reach or surpassed it, and an on control signal when the temperature plunges lower than the set point.

Control (on-off), linear (proportional, PID) or other non-linear power equipment can be utilized to produce the control signal. A panel meter incorporating a power on/off control possesses the capability to transmit an output signal to activate or deactivate a process unit. The units can range from an oven to a fan and more. The units may employ relays, open aerial transistors or additional technologies. On-off, proportional or limit controls are one of the simplest systems for procedure management.

Inputs to these meters can be one of many types. These inputs comprise but are not limited to, AC voltage, current, and power, DC voltage, current, and power, strain gauge, resistance and temperature. Many meters are configured to recognize numerous inputs and have modifiable displays to go back and forth between these inputs.

Output categories accessible for digital panel meters consist of serial communications, relay outputs and analog outputs. Analog outputs are utilized in applications that necessitate digitally restricted output voltages typically within the range of 10 V or a reduced amount, and at existing levels under 10 MA. The heart of an analog output channel is a digital-to-analog converter (DAC), which converts a digital programming into a voltage level. The output of the DAC is then processed or acclimatized to manufacture the necessary output signal characteristics.

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