Question: What are the differences between the Series 1950 and 1950G Explosion-proof Differential Pressure Switches? Continue reading “Ask the Expert – What are the differences between the Series 1950 and 1950G Explosion-proof Differential Pressure Switches?”
One of the most harmful and common substances to greatly affect people’s health is lead. Lead is a carcinogen which can be found in some percentage of most everyday materials. Varying forms of lead exposure can come from paint in older homes, dust, soil, and drinking water. To avoid health risk, individuals should take precautions to reduce or eliminate the possibilities of exposure. Ensuring and minimizing livestock and poultry exposure to lead contaminants helps to reduce human exposure via the food supply. Continue reading “Reducing Lead in Animal Watering Systems”
The cleaning of produced water during oil and gas production and exploration is a crucial, although costly endeavor. In the process of bringing oil and gas up to the surface from a well, several byproducts are also produced. Water is the largest of these byproducts by volume, with 882 billion gallons produced per day. This produced water contains a variety of other compounds and substances, including organic and inorganic compounds, grease, bacteria, and dissolved solids such as iron. Continue reading “The Intricacy of Proper Instrumentation in Cleaning Produced Water”
Many Dwyer Instruments, Inc. products sense and measure pressure. This includes: gages, manometers, transmitters and switches.
Pressure is the amount of force acting on a specific area and is equal to the force divided by the area.
There are many types of pressure that are used and measured, including: atmospheric, absolute, gage, vacuum, differential and hydrostatic. Continue reading “What is Pressure and How is it Referenced?”
Have you ever wondered why there are a multitude of sensor output signals that can be configured on pressure, temperature, humidity, or gas sensing instrumentation used in process or HVAC applications? Most of these offerings were originally setup to allow sensor manufacturers to better align with the inputs offered by manufacturers of programmable logic controllers (PLCs) and direct digital controllers (DDCs), which are used for controlling processes for both automation and HVAC control.
I’d like to focus on two of the most commonly used output signals and zero in on the advantages and/ or disadvantages these output signals offer. Two of the most commonly used output signals include analog current, typically 4 to 20mA, and analog voltage, typically 0-10V. Continue reading “Understanding Sensor Output Signals”