MPU Ultrasonic Gas Flowmeters

The new FMC Technologies MPUs offer numerous advantages over existing technologies

FMC offers single (MPU 200), 3-path (MPU 600) or 6-path (MPU 1200) transducer pairs to fit a variety of applications
The FMC MPU series provides up to 60 percent cost, space and weight savings compared to conventional gas metering devices
New programming for the MPUs provide superior ultrasonic digital signal processing and produces accurate and reliable data despite noise levels 10 times higher than can be read and measured by similar equipment offered in the market
The new non-intrusive, flush-mounted sensor design eliminates pressure loss across the meter which reduces requirements for additional pumping pressure and results in lower energy gas transportation costs
Our 6-path MPUs can profile both axial and transversal flow to account for any swirl and cross flow velocities and provide higher accuracy and greater flow turndown ratios than conventional gas metering equipment
The FMC MPU's fully titanium encapsulated transducers can be replaced on site without loss of reading under normal operating conditions
Large memory capacity has been built into the system log to store audit trail measurement, eliminating the need for additional external devices at small or remote installations
Built-in system redundancy compensates in the event that one path fails
Advanced self-diagnostic software notifies on-site or remote operators of any abnormal events, then compensates for it when possible while maintenance is being deployed. The software also allows the manufacturer to remotely run diagnostics and intervene, if desired

The FMC MPU Series is built for long-term reliability and easy system integration

A standard MPU consists of an ANSI flanged sppol piece with body and flanges in carbon steel. Depending upon the application, a variety of special body/flange materials and alternative flange types/sizes can be provided. In addition, a number (according to model type) of field removable/replaceable ultrasonic sensors are mounted into the flowmeter body, each individually connected to the MPU electronics box mounted on top of the unit, where all other field connections are made.

FMC's MPU electronics package allows the meter to be interfaced with a wide variety of field or control room mounted equipment, such as temperature and pressure sensors, flow computers, gas chromatographs, SCADA systems, and of course, laptop and other computer systems used at the time of installation and in later reconfigurations or diagnostic work.

FMC Technologies has pushed the envelope of ultrasonic technology for years and we continue to do so

First to introduce multiple paths in the same plane resulting in direct measurement of secondary flow effects like swirl and cross flow. In fact we are still the only manufacturer to offer this
First to offer flow profile factors, both for performance monitoring, diagnostics and for performance compensation in case of path failures
First to introduce flow profile monitoring and presentation, both in the axial direction and in the transverse direction
First to offer Ethernet connection for fast, trouble free connection from any computer - and for remoted dial-up via the Internet
First manufacturer to offer the industry ultrasonic flow meters for gas and oil applications, both based on the same technology
First to introduce complex signal coding for very advanced signal processing, especially applicable in noisy environments or in acoustically noisy installations
First to offer direct connection and database handling of fluid composition from gas chromatographs

MPU WinScreen Configuration and Diagnostic Software

WinScreen is a visual interface to the MPU's electronics that is utilized during meter setup, operation and diagnostics. Because all the meter's parameters are resident within its electronics package, WinScreen is used for setup at the factory, during flow calibration, and during installation and commissioning at customer locations. When installed in the field, its flexible interface allows remote operator access for safe and efficient meter diagnostics and reporting.

WinScreen's self-diagnostic capabilities produce historical, even, operator change and error alarm logs for tracking and follow-up purposes. It also generates database reports displaying all data parameters including software check sums that can be used to make quick checks on setup and operation, ensuring superior operation.