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.
October 15, 2015
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.
October 01, 2015
The term vacuum is often misunderstood and consequently misapplied when discussing pressure measurements and choosing pressure transducers. By definition, vacuum is a space that is partially exhausted (as to the highest degree possible) by artificial means (such as an air pump). This definition is referring to a high or hard vacuum. Figure 1 illustrates that relationship of absolute and gauge pressure with 0 PSIA equal to a high or hard vacuum.
Apprenticeship Programs: The Solution For More Skilled Workers
A shortage in skilled labor is a serious issue in United States'
manufacturing industry. Why? There's a misconception of what kind of training someone needs to have in order to enter professions within this industry. Many begin to build their skills through trade school before becoming a manufacturing professional. These students don't always get the proper hands-on training that can truly prepare them for the complex world of manufacturing Yet with these schools, there's still the perception that traditional degrees have more long-term value than vocation training.
April 28, 2015
Thin Film Technology Strain Gauge
Thin film pressure transducers are made by vapor deposition or sputtering of insulation and strain gauge elements directly on a polished pressure sensing diaphragm or beam. The desired strain gauge pattern is deposited either by masking the non-conductive areas or by etching away unwanted conductive material. Laser trimming is used to calibrate the resistive elements.
April 23, 2015
Many of the following technical specifications appear on datasheets for pressure transducers and similar devices. Here we review their technical definitions and relationships.
Root Sum Squares (RSS): accuracy of a pressure transducer is calculated by taking the square root of non-linearity + hysteresis + non-repeatability.
October 14, 2014
Industrial pressure transducers are used in a wide variety of applications ranging from HVAC/R compressors, refrigeration and variable speed pumps to hydraulic pressure, oil and water. A transducer can be used anywhere there's a pipeline or chamber, its function is to sense and convert pressures into a proportional electrical output signal that is transmitted to monitoring or control system.
September 10, 2014
With different equipment comes different air pressure testing techniques for measurement. But are you sure if your procedures up to date? This article breaks down specifically what methods need to be implemented for different scenarios. These new steps in calculating
August 19, 2014
Setra's educational webinars and videos on demand provide helpful information on applications, industry best practices and more. These webinars and videos are just a few of Setra's readily available resources for technical info.