Flow measurement applications ar e very diverse and each. English product level meter ultrasonic level meter. Highqualified products, differentiated service and the right solutions for your application support your business and help you succeed. Maintenance free by installing the mvm adjustment software in a pc, the ultrasonic level meter can play the role of a highend measuring instrument capable of parameter setting, confirmation of original waveforms. Ultrasonic level meter son60y series yokogawa electric. A flow meter is a device used to measur e the flow rate o r quantity o f a gas or liquid moving through a pipe. Blocking distance the level l may not extend into the blocking distance bd. Ultrasonic liquid level sensors the echopod and echosonic ii are innovative ultrasonic liquid level sensor families that replace float, conductance and pressure sensors that fail due to contact with dirty, sticky and scaling media in small, medium and large capacity tanks. It consists of probe and host, both of which are plastic leakproof structure. Easy calibration and maintenance free fit and forget performance mean that you can install the slm600 series rapidly and with confidence. Ultrasonic level measuring instrument, taking the advantages of various many level measuring instruments, is a universal one characterized by total digitalized and humanized design. Able to provide customized level meter in applications that have restrictions under high temperature and high pressure areas. Real time computation and display of average energy allows for fast tank and ultrasonicmegasonic characterization.
Product description ulm200c is an ultrasonic noncontacting level meter combining sensor and transmitter in one housing. Ultrasonic level measurement with prosonic sensors provides continuous, noncontact and maintenancefree level measurement of fluids, pastes, sludges and powdery to coarse bulk materials. Level meter is installed into the upper lid of the tank vessel, using a. Oiml publications may be downloaded from the oiml web site in the form of pdf files. The hl series can be widely applied to the metallurgical, chemical, electricity and oil industries. Liquid level and material level are collectively referred to as level. You have clicked a page that seems to be very popular. Ultrasonic flow meter ultrasonic meters are velocity meters by. Pux2 flow transmitter psx2 detectors instruction manual dwyer instruments, inc. Ultrasonic level meter son60y series measuring principle short ultrasonic impulses in the range of 35 to 70 khz are emitted by the transducer to the measured product, reflected by the product surface and received again by the transducer. The instrument has the following range specifications.
Figure 4 illustrates waveform duration at the 14 db level or 20% amplitude of peak. It is also possible to set different measurement scales for each page in a pdf file. Its simple maintenance is one of the benefits of the ulm200c and view full article. Fundamental principles of clampon ultrasonic flow meters. The sondar slm600 series is a highly developed ultrasonic level measurement system which provides noncontacting level measurement for a wide variety of applications in both liquids and solids. Read the following ultrasonic level measurement questions and answers. The twowire or fourwire compact transmitter can be used in applications with storage tanks, agitators, on stockpiles and. The vibrating fork oscillates at its natural frequency in air. Load rating 30 v dc, 50ma, low level 2v or less pulse width.
The possibilities using the level and range meter described here are virtually limitless. This specification refers to the sound level meter model4431. Applied in chemical, water and wastewater applications, these. Standard length from main unit to probe is 10m and can be longer. B blanking distance d distance from transducer to material surface l height in silo main function.
It has perfect level monitoring, data transmission and manmachine communication. The ultrasonic level meter is used to continuously monitor level channels in the height of liquid media, sludge or suspensions in both open and closed tanks and channels. Required components and files via link in comments. The measurement is unaffected by dielectric constant, density or humidity and also unaffected by buildup due to the selfcleaning effect of the sensors. Hl ultrasonic level meter for continuous noncontact level measurement in liquids and solids. Unlike other level indicators with limited uses, the easytoinstall ultrasonic level indicator is a highlyaccurate device with enough specialized uses to ensure that the needs of the customer are met.
The switched outputs can be programmed to give an on and off point for external control. This function is convenient for users to check the riding distance trip and the total distance odo. Various technics of liquids and solids level measurements. The prosonic fmu41 sensor is suited for noncontact level measurement in fluids, pastes, coarse bulk material and flow measurement in open channels or at weirs. The front of the level meter must run in parallel to the measured level. It covers most measurands corresponding to jis and iso. Ultrasonic level measurement sensors basically works with sound waves for detection of liquid level. Ultrasonic level transmitters dont need to contact medium directly and have a wide. Some handiwork and skill are necessary to create cutouts in the case for the lcd readout, the ultrasonic capsules.
If installed in an open channel sumps, reservoirs, etc. The meter measures the time t between pulse transmission and reception. Ultrasonic level transmitter,also called as ultrasonic level meters, are a kind of non contact level gauge devices,and it provides continuous level measurement for liquid and solid without touching fluid. Depending on the sensor, the measurement range is 5 meters, 10 meters or 15 meters. With this initial calibration it is only a matter of simple arithmetic to determine the liquid level.
Ultrasonic level meter used to test liquid level or material level. Ultrasonic measuring technology operates on the simple principle of measuring the time it takes sound to travel to and from an object. Hlu series compact 4wire ultrasonic level meters are powered by dc24v or ac220v. Ulm200c ultrasonic level meter deeter electronics ltd. Thus,it features noncontact, high costeffective,high reliability,long life using,no moving parts,etc. Level sensors based on this measuring principle are ideal for simple standard applications, especially for liquids. There is a 420 ma output that can be connected to a remote chart recorder or plc, to monitor level, space or distance, dependant on the. Sl100s is an ultrasonic noncontacting level meter which will increase the effectiveness of your liquid management process. Often it is important to have a plan and know what is expected before data is recorded. Zero flow volume 8 ultrasonic water flow measurement tidua10ajune 2015revised july 2015 submit documentation feedback. For fine powders, solids and liquids ultrasonic level meter.
Ultrasonic level meters ulm70 for continuous noncontact level measurement of liquid, pasty and bulksolid materials universal use, direct mounting into tanks, vessels, containers, sumps, etc. Pdf water level management using ultrasonic sensor. Hiring high frequency ultrasonic system enables small dead zone and is possible to measure short distance. Copy right 2009 all right reserved meinte technology limited gd icp.
Badger meter ultrasonic meters adapt to almost any system utilizing communication networks, pulse, analog, or wireless. It is selected by the number of the maximum setting pulses. It is featured by strong antiinterference performance. Water level management using ultrasonic sensorautomation article pdf available in international journal of computer sciences and engineering 66. Fundamentals of ultrasonic flow meters keven conrad and larry lynnworth panametrics, inc. Ultrasonic level meter can be used in store pot,material trough, well,pond,measuring case,ditch,granary,material storehouse,warehouse,etc. The extent to which cylindrical or cuboid containers are full can be determined either. Alibaba manufacturer directory suppliers, manufacturers. The ultrasonic level meter can cover a range of up to 70 m. Is a flow meter used to just detect flow or can it measure rate. The gauge generates the levelheight information in the form of a signal current 4 to 20ma. In noncontact ultrasonic level measurement, the sensor emits ultrasonic pulses in the direction of the medium, which then reflects them back. Even though there are several designs of ultrasonic meters on the market today, the principle of operation remains the same. One or two manufacturers do offer, in addition, a measurement of transducer amplitude.
This distance is either the zero level no flow present or a specific level in the flume or weir. How does an ultrasonic flow meter work openchannel flow. Various technics of liquids and solids level measurements part 4 in part one of this series of articles, level measurement using a floating system was discusses and the instruments were recommended for each application. Level measurement applications in liquids including liquefied gases and bulk solids are divided into four areas. The lcd will show the level value, but the data are often inconsistent with the actual level, so it need level calibration. Not effected by material property, such as pressure environments, viscosity and specific.
Transmitters with remote seals allow the transmitter to be removed from direct. Siemens echomax transducers are ultrasonic transducers used to send and receive sound signals that determine the distance from the face of the transducer to the material surface. The elapsed time from emission to reception of the signals is proportional to the level in the tank. Specify the default unit of measurement used by tools, for example.
Hl series ultrasonic level meter china manufacture for. The basic operation of an ultrasonic meter is relatively simple. The meter uses the time t and the velocity of sound c to calculate the distance d between the sensor membrane and the product surface. We offer modular wireless components and data acquisition systems to provide greater flexibility, collect valuable operation data and allow remote monitoring. Any of five models can be selected to best suit the application. The application condition should ensure the ultrasonic wave to travel to the occasion of measured liquid or material surface effectively. The slm600 series can show level, space, distance, on the display. Description the ultrasonicmegasonic energy meter is a precise instrument for measuring the energy density at a point in time and space in a given direction. The above range level measurement only,material level measuring the effective range of about 50% of the data,material level measuring proposal chooses four wire or split type level gauge. When liquid covers the fork, reducing the frequency, the device output switches. While varying the desired flow rate, the lcd displays in figure 9 and figure 10 show the volume of water of the test flow meter in gallonsmin. Specify the zoom level for pdf files without predefined magnification. Industrially, this is quite adequate since either will indicate the consistency of machine performance.
Consider location of the fill stream as well to ensure that is not intersecting the beam path. When the meter is initially set up, a predetermined distance or level in some meters is set. Ultrasonic level meter is used to measure the level and location of liquid and materia. They support 420ma output and at the same time support upper and lower relay output. Ultrasonic level meter is controlled by microprocessor digital level instrumentation,in the measurement of ultrasonic pulse made by sensor transducer, sound waves by the liquid surface reflection by the same sensor after receiving or ultrasonic receiver, by piezoelectric crystal or magnetostrictive devices converted to electrical signals,and by sound waves between transmitting and receiving. They usually work over the frequency range between 20 khz to 200 khz. D c t2 as the device knows the empty distance h from a user entry, it can calculate the level as follows. The 4431, provided with many functions usually mounted in equivalent products, has been realized at an extremely low price. The measurement range is 8 meters and it is a twowire looppowered product. The 40 db waveform duration corresponds to 1% amplitude of peak. In the second part of these articles, level measurement with the aid of pressure instruments was discussed. The ultrasonic flowmeter made by the authors, measures the frequency shifts caused by the liquid flow, using two pairs of transducers mounted in a case attached to both ends of the pipe.
Is technologies is a reliable provider of ultrasonic measurement instruments and water management solutions. Open collector output load rating 30vdc, 50ma, low level 2v or less status 1. Ultrasonic level transmitter meter,liquid level measurement. The sensor material is pvdf so it can be applied in various industry applications.
1071 299 301 1246 721 13 869 976 1469 607 1625 494 267 189 322 1553 425 529 1000 423 1066 34 1338 583 806 1220 380 137 784 487 1443