I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
Sulfur control Preferential Oxidation Catalysis — a new catalytic solution…
BUSINESS NEWS
Chemical Engineering MagazineBusiness News
Plant Watch Perstorp will construct new plant for sodium formate…
TECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

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

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
Minimizing Explosion Risk Where Other Solutions Cannot
Minimizing Corrosion with Fast, Robust Gas Analysis
Lower Measurement Point Costs with Automatic pH Sensor Cleaning
Reduce the Risk of Corrosion in Fertilizer Production
3 Reasons to Automate Sensor Cleaning

View More

Live chat by BoldChat