Setra Blog

Any design engineer must seriously consider the manufacturing environment when looking to select a pressure transducer for inclusion within a refrigeration chiller, pump, engine test equipment, or other machinery. The life of a pressure transducer is proportional to the system design and assembly process. 

In the Test and Measurement industry, pressure plays a large part in engine testing and automotive component manufacturing. That’s why wherever you find engines being tested, you’ll likely find transducers measuring everything from air intake pressures to exhaust back-pressures. In the automotive industry, you’ll find transducers measuring everything from tire inflation pressure for dynamometer testing to controlling tool pressure during crankshaft journal burnishing.

See below for the many categories and descriptions of where Test & Measurement transducers are used and why:

The following steps clearly indicate the exact sequence to properly troubleshoot a Setra 2 wire, mil-amp circuit. You must work with the assumption that either the Setra product or the system & circuitry is bad.

Which method provides better accuracy?  Non-linearity as the End Point Method is the relationship of the calibration curve to a specified straight line through its endpoints (i.e. Zero and Full Scale). Best Fit Straight Line (BFSL) method is the relationship of the calibration curve to a calculated straight line that minimizes the error but does not pass through the end points. BFSL method effectively cuts the end point value in half.

Shock & Vibration Are 2 Potential Mechanical Problems for transducer

There are numerous environmental factors that may interfere with the performance of a pressure transducer.  Two factors that sometimes overlooked to engineers are shock and vibration. Knowing the system where the pressure transducer is installed can help avoid high shock and vibration conditions, minimizing premature failure of your instrumentation. Before understanding the risks associated with shock and vibration, how a pressure transducer may experience or encounter these effects must be defined. 

Shock is a sudden, unexpected impact that transmits energy

The term vacuum is often misunderstood. Consequently, it is commonly misapplied when discussing pressure measurements and choosing pressure transducers. Pressure is the exertion of force upon an object. However, pressure can be measured in many different ways, depending on the applications.

• Vacuum Pressure
• Gauge Pressure
• Absolute Pressure
• Differential Pressure
• Setra's Vacuum Sensors

If pressure transducers are exposed to a manufacturing environment that exceeds the suppliers specified limits, sensor issues will occur. during storage or assembly. An original equipment manufacturer (OEM) design engineer should take note of the following six conditions while designing a system to be manufactured and shipped to an end-user.

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. Barometric pressure is used in absolute pressure datums to ensure repeatable measurement

Knowledge is power. This statement has been thrown around a lot, but it really holds true. Being aware and having insight can lead to being proactive instead of reactive. Knowing the facts about an issue can not just fix them but give lasting solutions. One issue that greatly impacts the majority of the world is energy usage. With resources being depleted every year, energy monitoring allows for consumption awareness on any kind of level.

This year's NCSL International Workshop and Symposium took place July 19^th through the 23^rd in Grapevine, TX, which brought together measurement industry professionals and thought leaders under one roof. The theme for the 2015 NCSL International Workshop & Symposium focused on “Measurement Science and the Quality of Life", which emphasized the role measurement science plays