The meter configuration is read from the meter and stored as part of the. Is your calibration equipment psig or psia as compared to the transmitter. What is nonintrusive ultrasonic flow meter technology. Measurements from external devices such as rtds and pressure transmitters can be logged along with flow data. Ultrasonic flowmeters are ideal for wastewater applications or any dirty liquid which is conductive or water based.
Flow measurement is the process of measuring fluid in your plant or industry. When making adjustments to the multipoint calibration, are the adjustments made at each point or at the conclusion of the multipoint calibration. The bfu100f is a fixed ultrasonic flow meter for continuous measurement of volumetric flow. The meter formula of an ultrasonic flowmeter includes an acoustic calibration factor, a fluid mechanic calibration factor for the flow profile influence and a geometric calibration factor which is.
Tfx ultra flow meter supporting the widest range of pipe sizes and network options, tfx ultra is our most popular ultrasonic flow meter. Sonic ultrasonic gas flow meters 02 elster instromet theory of operation an ultrasonic flow meter takes advantage of the principle that an ultrasonic pulse travels faster with the gas flow than against the flow. Closedloop purposebuilt flow meter calibration facility. Using ultrasonic transducers, the flow meter can measure the average velocity along the path of an emitted beam of ultrasound, by averaging the difference in measured transit time between the pulses of ultrasound propagating into and against the direction of the flow. Ultrasonic flow meters are now widely used in the industrial and building sectors for monitoring water systems, chemical output and energy efficiency monitoring. Uk flowtechnik offers a full calibration and repair service for a wide range of instrumentation products. The large easytoread color display and intuitive touch screen interface makes set up quick and easy. Digitalflow gf868 flow meter low flow for base load operation the volumetric flow in flares is often in the range 0. Flow calibrating the ultrasonic meter is a vital part of the process. List of tableslist of tables gas and liquid ultrasonic flow meters pe d installation and operation manual august 2017 39000745 rev f gas and liquid ultrasonic flow meter ped installation and operation manual section 1. It covers installation with and without a dedicated proving calibration system. The calibration must be done under conditions representative of the actual operation of the. There are no limits on the minimum or maximum sizes of the meter.
The operator can input parameters, modify settings or display measurement results by visiting a specific window. One complete octave ultrasonic flow meter meter body with integral electronics, size as indicated on the packaging box. Good working condition is a matter of proper use and maintenance. Features the sensor of ultrasonic flowmeter ul330 is clamped on just outside of an existing pipe without any piping modification and time consuming installation work. Testit provides an advanced progression of automation tools which manage gas and liquid meter inspection and calibration results, testing and sample schedules, and conduct field calculations for flow rate and equipment sizing. Water meters, meter reading and analytics technologies for municipal water utilities. Guidelines for ultrasonic water meter maintenance program. Diesel fuel, oil flow metering, etc dalian teren instruments co.
There are two technologies to choose from based on the fluid propertiestransit time and doppler. Fundamental principles of clampon ultrasonic flow meters overview of selection, installation, operation and maintenance of clampon meters. Unlike other acoustic flow meters, doppler meters are affected by changes in the liquids sonic velocity. Smith meter proving liquid ultrasonic flow meters for custody. Note the abovementioned flow rates have been calculated for the sus sch. The inspector must assure that the permittee obtains accurate wastewater flow data to calculate mass loading quantity from measured concentrations of pollutants discharged as required by many npdes permits. Flow calibration is available on most flow meter types. Important considerations regarding calibration of ultrasonic. Our calibration capabilities include a wide range of flow rates, temperatures, and pressures utilizing numerous test gasses.
A typical ultrasonic tof water flow meter spool body is depicted below in figure 1. Comprehensive portfolio for gases, liquids and steam. Ultrasonic flow meter usually uses clampon type flow transducers which dont block flow, thus no pressure drop and almost free maintenance. Appreciation of the accuracy level helps impose accuracy guidelines for proving and field performance testing. For process and utility applications, energy and custody transfer ct measurements. The canoe moving with the flow needs much less time to reach the opposite bank. Transit time flow meters transit time flow meters consist of electronics with remote or integral transducer options to measure bidirectional flow of clean liquids. The frequency output is a not required but standard on all. The most distinct of these advantages is the noninvasive nature of ultrasonic measuring technique. The first step in the calibration process is the configuration of the facility data acquisition system. The flow rate range may differ slightly, depending on the piping standard. The cfm1 ultrasonic meter s accuracy is relative to the set point at 2%. Depending on the mounting configuration, the signal may cross the pipe once.
Utilizing the meter manufacturers software and one of the data signal lines, communication is established with the meter. The accuracy is greatly increased as compared to a vortex flow meter. Fdt7000 transit time ultrasonic flow meter for clean. High temperature and cryogenic versions, variants for high pressure and higher viscosities. Calibration the ultrasonic meter is dry calibrated at the factory. The fdt500 series comprises advancedtechnology water flow meters. For one, flow meter calibration labs are typically custom designed installations, relatively expensive, involving multiple valves and weigh tanks that control the. Fundamental principles of clampon ultrasonic flow meters. We specialise in measuring the flow of a liquid in a pipe by using clamp on strap on sensors. Our emerson mining advisor applications will be on display. The flow meter adopts the window software design to consolidate or subdivide all of the parameters entered, the instrument setup and measurement result displays into more than 100 independent windows. A tenfold change in viscosity introduces only a 1% change in the meter factor k of a diameter path e. By using the high performance msp430fg4618 microprocessor made by taxes instruments, it is intend to provide our customers with lower cost but of high performance general purpose ultrasonic flow meter heat meter ultrasonic flow converter. The siemens sitrans lut400 series controllers are compact, single point, longrange ultrasonic controllers for continuous level, or volume measurement of liquids, slurries, and solids, and high accuracy monitoring of open channel flow.
The atrato process is based on our standard, wide ranging, atrato meter but packaged to address the more challenging process and control environment. These meters are used for liquid and gas measurement applications requiring high accuracy, low pressure drop and minimal maintenance. Ultrasonic flowmeter multimeter calibration, pressure. However, a number of more specialist services are available. The larger the difference between the upstream travel time versus the downstream, the more gas has passed through the meter. Predictive diagnostics for daniel ultrasonic meters. This familyowned business started out making variable flow switches for the automotive industry and today services concrete, defense, chemical processing, mining, wastewater, energy, electronics, laboratories, medical, and many other industries. Pdf a new calibration method for ultrasonic clampon. Whether using the standalone application or the version fully integrated with flowcal, testit provides an automated. Location technical articles ultrasonic flowmeter calibration and maintenance ultrasonic flowmeter calibration. The ufm is a clampon, ultrasonic flowmeter that uses a multiple slope transit time algorithm to provide accurate flow measurements. Ultrasonic flow meters operate using the transittime differential method. Appendix o, supplemental flow measurement information, contains further information on flow measurement devices. Octave user installation guide certificate of calibration data adhered to the inside of the meter lid optional if specified at the time of order.
Ultrasonic clampon gas flow meters and liquid flowmeters. Ceesi measurement services garner, iowa this paper is aimed at ultrasonic natural gas meters that use transit time across the gas pipe as the measurement variable. Transit time ultrasonic flow meter for clean liquids fdt7015 fdt7015. Use or to position before each menu item and to enter. Loy upp, defines calibration of an instrument or meter as the process or procedure of adjusting an instrument or a meter so that its indication or registration is in close agreement with a referenced standard. Smith meter liquid ultrasonic meters proving liquid ultrasonic flow meters for custody transfer measurement issuerev. The transittime differential measurement is based on a simple physical fact imagine two canoes crossing a river on the same diagonal line, one with the flow and the other against the flow.
Ultrasonic flow meter is a noncontact flow measurement device designed to measure the velocity of liquid within a closed conduit. The natural vibration frequen c y of the flow tube s dep end on the. The ultrasonic flowmeter in combination with the ultrasonic sensor mounted on the external wall of existing piping, is used to convert the amount of flow of a fluid flowing in the piping into a unified current signal and integrated pulse signal. The wzp warmezahlerprufstrecke, heat meter calibration facility is a gravimetric measurement facility for the calibration of flow sensors from dn 80 to dn 400 components of heat and cold meters as well as for the investigation of flow sensors for conformity assessments according to the mid measurement instrument directive mi004 for water as a heat conveying fluid in the temperature. Flow technology provides flowmeters, flow instrumentation, flow measurement, flow sensors, and flow calibration services for a wide range of industries. An ultrasonic flow meter is a type of flow meter that measures the velocity of a fluid with ultrasound to calculate volume flow. An ultrasonic flowmeter nonintrusive doppler flow meters is a volumetric flow meter which requires particulates or bubbles in the flow. Flow meter calibrations as one of the largest commercial calibration laboratories in north america, we provide a comprehensive range of calibration services. Badger meter offers innovative flow metering and control solutions for smart water management, smart buildings and smart industrial processes, to help measure and protect resources for a smarter world. These are high frequency sensors that penetrate through the pipe wall and the liquid to determine the fluid velocity, flow rate and total.
Flow meter calibration facilities two basic types of calibration facilities open design uses existing pipeline flow side branch. Digitalflow gf868 panametrics flare gas mass ultrasonic. These problems make doppler flowmeters unsuitable for highly accurate measurement applications. Print the parameter setup report to document the flow meter configuration after flow calibration. This series uses transittime ultrasonic technology in which the signal is transmitted and received alternately between 2 flow sensors and the time of flight determines the flow rate. The author of the wellknown book fluid flow measurement, e. An ultrasonic beam of a given frequency is generated by applying a repetitive voltage pulse to the transducer crystals. There is hardly any part of modern life that is not touched by these devices and because, or in spite of this, the flow meter calibration procedures are increasingly important. Ultrasonic flow meters offer a number of advantages over other flow measuring technologies. This definition captures the concept of calibration as it is understood. Ultrasonic meters achieve accuracys at low flows that convention technologies reached at higher midrange flows. Ultrasonic flow meter the parker cfm1 is a compact ultrasonic flow meter.
Heavy duty portable ultrasonic water flow meter flexim s new fluxus f401 is the ideal flow meter for longterm. However, in order for the calibration of any flowmeter to be valid, a number of important criteria must be met. Most users require flow calibrations to improve meter performance and overall measurement uncertainty. Noninvasive flow measurement of gases at high temperatures. Ultrasonic flow meter establish stable flow pressure and ensure thermal stability.
Calibration of an ultrasonic flow meter for hot water. The site id will become part of the downloaded file name to help distinguish downloads from different instruments. Ultrasonics flowmeters will generally not work with distilled water or drinking water. Sitrans lut400 ultrasonic level measurement siemens global. It is a closely held company owned and operated by erik and lars rosaen. The sitrans lut400 comes in three different models, depending on the application, level of. The deviation between the measured gas volume flow and the reference measurement shall be within the required limits. Bhge panametrics is the standard bearer for ultrasonic flare mass flow measurement. Their simplicity and reliability has seen their widespread adoption throughout the. Onsite verification although it would be highly beneficial to combine the calibration process with the convenience of the onsite verification, it would be a very difficult approach. Flow meter manuals, drawings, certifications, and other. As a result, the meter is also sensitive to changes in density and temperature. Flow meter calibrations colorado engineering experiment. Flow measurement and control products for water, oil, gas.
Dynasonics ultrasonic meters measure flow rate by propagating ultrasound waves into liquidfilled pipes and measuring the reflections. Calibration of water flow rate in an ultrasonic flow meter. With clampon technology, these ultrasonic meters reside outside the pipe and bring you flow measurement with. The noncontact ultrasonic flow meter is a noninvasive flow meter available in two formats. Clampon flow measurement of process water, saltwater, deminerialized water, drinking water and wastewater.
Serial communication digital using either rs232 or rs485 is suggested because the ultrasonic meter is clearly a very smart instrument and much of its usefulness relies on the internal information contained in the meter. Area velocity open channel ultrasonic meter alsonicavm smartmeasurements alsonicavm system is an areavelocity meter that is used in conjunction with a usersupplied level transmitter to measure flow rates in open channels. Proline prosonic flow 91w ultrasonic flowmeter endress. Ultrasonic water meters use an ultrasonic transducer to send ultrasonic sound waves through the fluid to determine the velocity and translate the velocity into measurement of the water volume andor rate of flow. Users will often define additional calibration points within the typical operating range of the meter. For ultrasonic flow meters, aga9 recommends 100, 75, 50, 25, 10, 5, 2. When settings are completed press to store and return to the calibration menu. In the checklist example shown below, the customer can define the calibration points desired. Dxn hybrid flow and energy meter kit our most versatile flow meter, the dxn measures flow with transit time and doppler technology. With our expertise, we are able to address applications previously thought to be beyond the scope of ultrasonic level measurement. You can measure flow through a variety of different devices such as coriolis, differential pressure, vortex, magnetic, ultrasonic, turbine and positive displacement meters. The flow test result will be presented in a flow calibration certificate for each meter, issued by the flow test facility.