I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chementator Briefs
Light-emitting Si Researchers from Eindhoven University of Technology (TUE; the…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More

Comment PDF

Protecting Instruments from Overpressure

By Ehren Kiker |

Overpressure in a process can damage the seals in a pressure instrument’s sensor or skew the zero point. Here’s how to avoid the problem Pressure is one of the most commonly measured variables in the chemical process industries (CPI). Accuracy and, more importantly, stability are critical to maintaining a safe, reliable process and maximizing uptime. Modern pressure instruments are highly accurate and provide excellent long-term stability, with a variety of diagnostics to provide greater insight into the process, but they are still highly susceptible to overpressure events. By better understanding the application and the sources of overpressure, as well as knowing options available from manufacturers, process engineers can better avoid the possibility of costly process problems caused by overpressure.   Pressure measurement Pressure is typically measured by an instrument with a sensor and a transmitter. The sensor interfaces to the process to determine the pressure and sends this value to the transmitter. The transmitter converts the signal from the sensor to a type suitable for transmission to a control and monitoring system, such as 4–20 mA or a digital fieldbus-communications protocol. Modern electronic pressure…
Related Content
Steam Quality Considerations
Steam often provides the majority of heat, but its quality is not always carefully managed. Here are some tips on…

ABB

The Big 6 level measurement technologies, where to use them and why

ON-DEMAND WEBINAR The Big 6 level measurement technologies, where to use them and why In this session, MS Sreekeanth, a Global Product Manager in ABB’s Measurement & Analytics business, will discuss the typical advantages and applications for…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Video - Do you really need a thermowell?
Hydrofluoric acid alkylation (HFU) unit optimization
The Big 6 level measurement technologies, where to use them and why
Upstream Oil & Gas: Automation intelligence from wellhead to distribution
6 benefits to expect from a measurement partner

View More