Setra Blog


Tom Lish

Recent Posts

May 18, 2017

What is the difference between opening and closing gap sensors?

In many pressure sensing applications, high accuracy is a must-have. Whether you’re working with thousands of PSI or only a quarter inch of water column, the most demanding jobs require the best tools available. While there are many types of pressure sensing devices on the market, none quite match variable capacitance transducers in terms of accuracy and quality.

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May 11, 2017

CE & RoHS Compliance: What you need to know

As of July 22, the RoHS exemption for industrial monitoring and control instruments will end. Non- compliant product cannot be CE marked and sold in the European Union or to customers who otherwise require the CE mark.

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March 31, 2017

What is a Hydrogen Fuel Cell?

Although hydrogen is in its infancy as a fuel source, its future is incredibly bright. The technology behind hydrogen fuel cells is improving daily and its viability as a replacement to the internal combustion engine seems likely. Hydrogen is already being used in specialty vehicles such as forklifts and buses, and it’s only a matter of time before infrastructure is in place to serve the consumer automotive market. Why do hydrogen fuel cells have such great appeal? Because their only byproducts are heat and water vapor, making hydrogen fuel cells a truly zero-emission locomotive technology.

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March 31, 2017

What is Capacitance?

 

 

 

 

 

 

 

 

 

 

 

 

 

Capacitance is the ability of an object to hold an electrical charge. Capacitors are components in an electrical circuit that can store a charge and are considered one of the three fundamental electronic components along with inductors and resistors.

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March 27, 2017

What is Barometric Pressure?

Simply put, barometric pressure is the measurement of air pressure in the atmosphere, specifically the measurement of the weight exerted by air molecules at a given point on Earth. Barometric pressure changes constantly and is always different depending on where the reading takes place.

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March 06, 2017

What are the setbacks of an oil-filled sensor vs. non-oil filled?

In the pressure sensing industry there are many different sensor technologies, but all sensors can be broken down into two classifications; oil-filled, non-oil filled. An oil-filled sensor refers to a sensor that uses oil as a transfer medium between a diaphragm and the sensing element. Oil-filled sensors appeal to many manufacturing applications due to its material compatibility, low cost, and ease of implementation. Although these sensors are becoming a standard, there are several drawbacks to selecting an oil-filled sensor over a non-oil filled sensor.

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March 02, 2017

Considerations For Properly Measuring Tank Level

Whether you are looking for a solution to solve a tank level measurement issue to a building or trying to monitor a process tank within your factory, the proper tank level is extremely important to the success of your project. There are countless applications across many industries that with a few simple steps can ensure that you can meet the needs of your project.

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February 27, 2017

How To Stop Water Hammer

What is Water Hammer?

Water hammer is shock wave produced by the sudden stoppage or reduction of a fluid flow. This can cause sudden rises in pressure and damage instrumentation. In tank level measurement applications, high pressures can be generated by the sudden closure of a valve on an outlet line. Although it might seem to be a consistent flow, the water inside pipes tumbles as it moves through.

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February 16, 2017

What Are The Difficulties Of Low Pressure Calibration?

Calibration is important regardless of what type of pressure you are monitoring.

Calibration is especially significant for low pressure requirements in critical applications such as vivariums, pharmaceutical manufacturing, cleanrooms and hospital isolation rooms. Other applications for low pressure include medical instrumentation, environmental pollution control, boiler combustion efficiency, air flow and research and development test stands.  

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February 06, 2017

The DASI System, Barometric Pressure Measurement & the FAA

Barometric altimeters calculate and display altitude by measuring the local barometric pressure and converting that measurement into altitude. This conversion is done using the Standard Atmosphere Table, an international standard representing the barometric pressure at various altitudes on a so-called "standard day" which assumes a consistent non-linear relationship between altitude and pressure.

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