Every month, Control's editors take a specific product area, collect all the latest, significant tools we can find, and present them here to make your job easier. If you know of any tools and resources we didn't include, send them to [email protected] with "Resource" in the subject, and we'll add them to the website.
READER'S GUIDE TO PRESSURE MEASUREMENT
This 50-page PDF covers all the basics of pressure measurement. Topics include pressure measurement fundamentals, deadweight pressure testers and their calibration, manometers, secondary comparison pressure standards, and considerations for selecting a standard. The PDF is free, but registration is required. The direct link is http://bit.ly/1d04sDO.
TEMPERATURE MEASUREMENT MUST-KNOWS
How do I measure temperature? How accurate is my measurement? What temperature range is required? What type of device best measures temperature? Does my instrument require certification? These are common questions when confronted with the need to measure temperature. This paper, "Temperature Measurement and Calibration: What Every Instrument Technician Should Know," focuses on electronic temperature measurements, and helps clarify the answers to some of these nagging questions. Free, but registration is required. The direct link is located at http://bit.ly/IQFHRI.
Part of the National Instruments' Measurement Fundamentals series, this sensor tutorial contains sections on temperature and pressure sensing. It covers taking thermocouple measurements, measuring temperature with RTDs or thermistors and basic pressure sensor measurement, among other topics. It's free. The direct link is at http://bit.ly/1dS2uKu.
PRESSURE MEASUREMENT BLOG
APG Sensors has as regular blog that covers a variety of sensor subjects. In the section devoted to pressure and temperature, it covers such subjects as "Three Steps to Using Pressure Gauges the Right Way," "Haven't Tried Modbus Level on Pressure Sensors Yet? Why You Should," "Four Fundamental Process Connections You Should Know," and "When a Pressure Gauge Is Totally Useless." The direct link is at http://bit.ly/18nAaI9.
CHOOSE THE BEST TEMP MEASUREMENT
LAN Extensions for Instrumentation (LXI) offer a methodology to perform exacting temperature measurements in test and control applications. This paper describes the common pitfalls of precision temperature measurement and what you need to consider before selecting a temperature measurement solution. This is a free, downloadable white paper at http://bit.ly/1jpiqnw.
TEMPERATURE MEASUREMENT IN POWER PLANTS
This white paper covers some of the basics of temperature measurement. and leads into some of the technical advances that impart a higher degree of safety and reliability to power plant operation.
GWR OR DP TRANSMITTERS?
Differential pressure (DP) transmitters are still the most commonly used method for liquid level measurement, but guided wave radar (GWR) technology is gaining in popularity every year. Which one is better for your application? This white paper, "Guided Wave Radar vs. Differential Pressure Transmitters for Liquid Level Measurement," presents the case for guided wave radar for many applications. It's a free PDF, but registration is required. The direct link is at http://bit.ly/1eS3F98.