Monitoring the long-term stability of ultrasonic flow measurements
Plausibility monitoring through integrated measurement of the speed of sound
Challenge
Long-term stability and a verified measured value contribute significantly to maintaining a consistently high level of process reliability. How can plant operators ensure in the long term that their measuring devices used are within the expected measurement uncertainty and that the measurement is systematically correct?
Solution
The OPTISONIC flowmeters operate according to the ultrasonic transit time principle and, depending on the model, are constructed with up to twelve beams in different levels. This means that in addition to the velocity information, numerous other diagnostic data are available to evaluate the integrity of the measurement. In addition to detecting gas components, deposits and flow profile disturbances that have an influence on the measurement uncertainty, the entire measurement circuit is monitored, from the converter electronics to the signal converters and the acoustic signal path. This significantly improves plant safety and availability without the need for frequent verification compared to conventional measurements.
Safety benefits
Ultrasonic transit time as the primary measured value: works independently of the media properties
Offers numerous diagnostic options to monitor the plausibility of the measurement and to identify factors influencing the measurement
Compared to conventional measurement principles, maintenance-free and stable even without recurring verification
OPTISONIC series of instruments for liquids, gases and steam, as inline or clamp-on instruments, for simple to highly demanding applications (e.g. in custody transfer)
OPTISONIC 3400
Ultrasonic flowmeter for liquid process applications
OPTISONIC 3400 District Heating
Ultrasonic flowmeter for district heating applications
OPTISONIC 4400 HP
Ultrasonic flowmeter for high pressure liquids
OPTISONIC 4400 HAT
Ultrasonic flowmeter for high temperature liquids
OPTISONIC 6300 P
Ultrasonic clamp-on flowmeter for temporary flow measurement of liquids
OPTISONIC 6300
Ultrasonic clamp-on flowmeter for flow measurement of liquids
OPTISONIC 7300
Ultrasonic flowmeter for natural gas, process gas and utility gas applications
OPTISONIC 7300 Biogas
Ultrasonic flowmeter for biogas, landfill and sewage gas applications
OPTISONIC 8300
Ultrasonic flowmeter for superheated steam and high temperature gases
ALTOSONIC V12
Ultrasonic flowmeter for custody transfer (CT) measurement of gases
ALTOSONIC 5
Ultrasonic flowmeter for custody transfer (CT) measurement in upstream and midstream applications
ALTOSONIC III
Ultrasonic flowmeter for custody transfer (CT) measurement of liquid hydrocarbons