Emerson Rosemount 4051S Pressure Transmitter

Emerson has released the Rosemount 4051S Pressure Transmitter, which is designed to provide local real-time control, eliminating the need for a separate device, such as a programmable logic controller. This functionality is provided by two relay switches, each of which can be configured to provide on/off control of pumps, motors and other equipment. These switches can also provide alerts based on pressure, flow, totalised flow, level, volume or module temperature.

Engineered to withstand the toughest processes and the harshest environments, it provides a fast response time of 40 ms. A best-in-class 800:1 turndown ratio reduces the number of unique models needed to be kept in stock, which helps streamline inventory.

Advanced diagnostics provide more insights, with loop integrity continuously monitoring the health of the entire electrical loop to detect potential failures. Plugged impulse line detection alerts plant personnel so they can take action, and the transmitter can also diagnose other abnormal conditions, such as cavitation, using its built-in process intelligence. Built-in calibration and diagnostic logs provide the information needed to optimise maintenance and perform root cause analysis.

The graphical, backlit display is larger than previous models, making it easier to read and allowing inclusion of more descriptive warning messages, an always-on process variable value, and a customisable secondary area. The display can be configured in seven languages, and the intuitive user interface speeds and simplifies operator interactions, while reducing the risk of errors.