At its best it can hold its own well within an s point of my very low swr trap dipole. Compuflow smartmag magnetic singlepoint insertion flow meter. The baby loop at tokyo hamufea 2015 the first day, had been parked near the smoking area at the back hall, hammer with a loop antenna. Fit all your favorites in this clean interior and show them off with 3 sides of tempered glasses.
A magnetic loop is essentially a small loop antenna whose circumference is less than 110 of the wavelength. The device is water resistant and perfect for outdoor use. This loop was designed to be used with a qrp transceiver like the yaesu ft 817 or the icom ic 703. The radiation resistance for a magnetic loop antenna ranges from about 0.
Our purpose is to provide editorial content and information to help those professionals do their jobs more effectively while educating them on the latest technology. Admag axr twowire magnetic flow meter the admag axr twowire loop powered magnetic flow meter can be installed in a twowire system. Feb 24, 20 fix an ugly lawn with overseeding complete step by step guide for beginners duration. Got it mounted on a tripod at about 6 feet at the base. Fix an ugly lawn with overseeding complete step by step guide for beginners duration. An automatic motor controller for small loop antennas. The mfj magnetic loop may be mounted vertically or horizontally. Loops download link provides freeware version of the software. Observe that the diameter of the coupling loop is twice as large as for a single magnetic loop.
This includes the phoenix area and the neighboring urbanized area in pinal county, containing the town of florence and city of maricopa. This aerial covers the 12 and 10 metre bands and is made from a single 3 metre length of 22 mm copper tube. The smallest antenna described for 80 metres was a magnetic loop. Two bracelets to connect water pipe of 60mm to the wall on a plexiglass plate. Loop antenna calculators suggest that a loop of that size can be tune from 40 to 10 mtrs with a variable capacitor of 10180 pf. A computer program in quickbasic for the heuristic design of looped water distribution networks. The antenna boom is made on a one inch diameter water plastic pipe. Some time has passed since i worked on the eightshaped magnetic loop by pa0fri. Get free 2day shipping on qualified water softener systems products or buy kitchen department products today with buy online pick up in store. There are now eight ways to feed a magnetic or small loop. The compuflow smartmag magnetic single point insertion flow meter is engineered with industryleading features and smart technology to deliver uncompromised flow measurement solutions for todays demanding industries.
The pressure drop between the more widely separated tees connecting the boiler to the primary loop in figure 1 will tend to induce some flow through an inactive boiler. The main category is magnetic loop antennas that is about magnetic loop antenna projects. One of the most important factors to consider when buying an electromagnetic flow meter is the conductivity of the flow. Mag home page mag maricopa association of governments. Sitrans p ds iii pressure measurement siemens siemens. Mag8000 mag meter sizes 3 through 24 the sitrans f m mag 8000 program of batteryoperated water meters gives you the flexibility to install a reliable water flow meter virtually anywhere without sacrificing accuracy or performance. Ion exchange technology proves effective in wyomings powder. Most of the year, there is water standing below the entire terrace fortunately, mosquitos do not seem to.
Loop water comes from the heart of local spring country in the pennsylvania appalachians. Although this online calculator is intended to assist with designing and building homemade, ham radio loop antennas for use in the hf bands, magnetic antennas have been constructed that function in the vhf or even the uhf frequencies. So, the loop diameter should not exceed about 1 mtr. To be accurate the linear length of the copper tube is 290cm. The wonders of magnetism and the linear motor are captured in this 1975 presentation by professor eric laithwaite 19211997 former professor of heavy elect. I hope this page brings you some ideas on how to build a magnetic loop. Its clean, crisp, refreshing taste leaves you feeling rejuvenated. Small transmitting loop antennas, commonly called magnetic loops or mag loops, can give surprisingly good performance when they are carefully designed and constructed. Build a magnetic loop antenna controlled by arduino. Fits perfectly in an angle and lid still closed, if you have a light then suggest placing w mag facing up. Compuflow introduces the technologically advanced industrialgrade magnetic single point insertion flow meter for superior flow measurement. Implementation of the familiar hardycross pipe distribution algorithm. Here youll find all of our meters that are offered in 4 size. Indoor random wire versus indoor magnetic loop test.
Magnetic loop antenna calculator resource detail the. The axfa11 magnetic converter has been developed based on yokogawas decades long experience in magnetic flowmeters. Keep in mind when going to individual product pages you will have to select the size youre interested in to see the appropriate pricing. This antenna was easily managed with the autocap software, using a. Oc for the first four runs two in each direction before the spacing can be widened to nine inches or beyond. Vk3yes gateway to amateur radio a magnetic loop antenna for hf. This eightshaped magnetic loop, made from two lengths of tube of 3. I have thousands of 6m contacts and over 350 grid squares on a homebrew 6 m loop made of water pipe. At that time it was thought that there where only seven ways to feed r.
The drawing of seven loop arrangements was published in radcom in 1986 and is. Magnetic water treatment also known as antiscale magnetic treatment or amt is a method of supposedly reducing the effects of hard water by passing it through a magnetic field as a nonchemical alternative to water softening. However, the manual makes clear that it must be mounted high such as on top of a pole above the roof of a house to work properly in the horizontal position. Understandable you wont be able to find the same motor or even vacuum capacitor. Find downloads, support and services for siemens process instrumentation. Naturally, i want to use as little water as possible to save my well water. It also has a battery protection board inside for undercharging protection. Welcome to w2bris magnetic loops images and notes from other loop builders, inventors, and enthusiasts adventures in stealth radio can a move to a new subdivision relegate you to becoming a stamp collector. Dec 01, 20 the warmest water is sent around the perimeter of the three outside walls first and returned at six in.
The two units are interconnected using a two core 10m cable with phono plugs to maintain the correct dc polarity at each end. Mounted vertically, height is not important, and it is claimed that magnetic loops can be used even at ground level. This and much more is conveniently calculated by such a program. A simple program in the building automation system bas to alarm the facility operators that a closed loop meter is reading high water consumption in a short. With the correct software you can know the position of such a motor so there is no need for a potmeter to read the position of the motor. The sitrans p ds iii series includes digital pressure transmitters for measuring gauge pressure, absolute pressure, differential pressure, flow and level. Magnetic flow meters are well suited for a variety of applications across a range of industries including pulp and paper, metals and mining, water and wastewater, food and beverage, chemical and petrochemical and oil and gas. Electromagnetic water meter accumag water meter sensus. With the 10208 pf capacitor, i can tune this loop over a frequency range from 6. Water quality products wqp is the preeminent source of information for water treatment professionals. The magnetic loop couples to the to the magnetic field of the radio wave in the region near the antenna, in contrast to a monopole or a dipole which couple to the electric field of the wave. To automatically tune a magnetic loop antenna loftur e.
To be a magnetic loop, the loop circumfrence must be less than 0. The wire was about 75 feet in length and i could tune if from 80 to 10 meters against a 12 foot counterpoise. The magnetic loop design leads to antenna which is tuned to a very narrow frequency range, giving good selectivity. Using the software at the bottom of this page, i worked out that a 36cm length of wire, will need a capacitance of around 3. Simple remote tuning control for hf mag loops g8ode. Works either in standard and metric units, and let you choose on material, and loop shape, as circular, square or octagon. A recent move to a brand new subdivision prompted a rethink in the way i do my ham radio. Seametrics water flow meter technology with a mission. Since 2003 i have been experimenting with magnetic loops. I have been experimenting with small generally less then 110 wavelength circumference transmitting loop antennas in the hf bands since the 1980s. Siemens mag8000 electromagnetic mag flow meter utility. It allows students to analyze pipe distribution networks.
Its on the front lawn about 25ft from the house and has nothing else near it. The first requirement for a magnetic loop antenna is that the antenna must be resonant. With the capacity to record up to 384 daily flow logs, 768 hourly logs, and 345 event logs, the mciii panel mount is a powerful addition to any. Openflows watergems provides you with a comprehensive yet easytouse decisionsupport tool for water distribution networks. In other words, unlike other magnetic transmitting loop antenna controllers, there is no need to transmit and retune for minimum swr every time the frequency has been changed. Discover the best water bottle accessories in best sellers. Corsair icue software enables complete control over your custom cooling loop with a corsair icue commander pro. This link is listed in our web site directory since monday dec 9 20, and till today magnetic loop antenna calculator has been followed for a total of 5256 times.
Monitoring control loop performance power magazine. A electromagnetic flow meter mag flow meter or magmeter is a volumetric flow meter which does not have any moving parts and is ideal for wastewater applications or any dirty liquid which is conductive or water based. In general, the radiation resistance of a magnetic loop antenna of a given size will increase with frequency. Finally, on the top in picture shown above, is welded a variable tuning capacitor, a butterfly capacitor its important to avoid sliding contacts in the perspective to use an atu in the future, to avoid sparks due to the high voltage generated. The magnetic loop controller tunes the antenna in real time, tracking every movement of the transceiver vfo. This software was designed for classroom use in hydraulics. Piping layouts to avoid in hydronic systems hpac magazine. This very easy to do with the controller software i wrote see further below. Mag provides regional planning and policy decisions in areas of transportation, air quality, water quality, and human services for maricopa county. With 4x and 10x, you can easily to do the cable management and show the most.
Water softener systems water softeners the home depot. The resource is currently listed in in 3 categories. Camelbak chute mag water bottle, insulated stainless steel. Why flow conductivity matters in electromagnetic flowmeters. Five band indoor magnetic loop aerial by g4izh see more. Magnetic loop antenna for 8020 mtrs by frank n4spp. Shop water softeners and a variety of plumbing products online at lowes. The two units are interconnected using a two core 10m cable with phono plugs to maintain the correct dc polarity at. The wire was routed through the apartment for minimum noise pickup. The tutorial of a diy magnetic loop antenna for the amateur radio band. The software helps improve your knowledge of how infrastructure behaves as a system, how it reacts to operational strategies, and how it. Sitrans fm mag 5100w electromagnetic flow measurement. Full construction details appear in dk1nbs magnetic loop design program details later.
Oc to the centre of the room before being returned at halfway in between in parallel runs, finishing off the loop at equal spacing throughout. Seametrics is an onicon measurement solutions company specializing in the development of magnetic and mechanical flow meters and environmental sensors for precision fluid measurement. In addition to the magnetic loop, i occasionally used a random wire strung throughout the apartment. Main loop diameter m conductor diameter mm magnetic loop antenna calculator for round copper construction 1. My fix was to build a plywood frame with a plexiglas window on it and mounted this over the pipes and flow meters on the wall, it reduced noise by 75%, so.
In this case, a vacuum variable capacitor is used, rated to a peak current of 57 amps and a peak voltage of 5 kilovolts. Support for darcyweisbach and hazen williams friction methods is offered. The reason there is so much disagreement and flaming on ham threads is posters seldom look at context when they make bold statements or disagree with others. I prefer plastic boxes since they wont ding up a wall or skin as easily if thrown around. The nuflo mciii panel mount flow totalizer offers stateofthe art liquid and gas measurement with data logging and modbus communications in an easytouse totalizer with a standard 14din mount. Its a light magnetic loop antenna calculator that run on ms windows, and allow to calculate capacitor values and voltage based on loop circumference, conductor diameter, desired resonant frequency and the operating power.
Why would you screw around with a goofy mag loop for 6 meters when a real loop is a reasonable size. Seametrics mjseries in closed loop system seametrics. Mag heater a portable electromagnetic lighter for the. This is usually accomplished by adding a parallel capacitance to cancel the inductive reactance of the loop at the desired frequency. Abstraction and distribution network, revenue and bulk metering and irrigration the sitrans f m mag 8000 program features a basic version for general water applications or an advanced version for more advanced functionality and information. The byproduct water, which once was an environmental problem, now is being reused by ranchers for irrigation, watering cattle and as a source for drinking waterand no wastewater is generated in the process. Create automated fan curves that adjust fan speeds based on your systems thermals, and customize dynamic rgb lighting effects for the xc7 and xc9 rgb cpu water blocks, xg7 rgb gpu water block, and xd5 rgb pumpreservoir combo. Software sites tucows software library shareware cdroms software capsules compilation cdrom images zx spectrum doom level cd featured image all images latest this just in flickr commons occupy wall street flickr cover art usgs maps.
Nov 05, 2008 so if i have installed a 3 ton open loop system, how do i set the flow rate to get the optimum flow. Even the standard devices offer comprehensive diagnostics and simulation functions with high reliability. Seametrics flow meters and environmental sensors for precision. Control loop performancemonitoring software can help to improve loop performance at electric power plants by automatically collecting data, assessing several aspects of loop performance, and.
This simple battery operated remote control system was originally designed for a portable 2. Copper water pipe the thicker the better should be suitable. The calculators give you theoretical values, your actual construction will also affect the antenna greatly. Epanet is public domain software that may be freely copied and distributed. When you are in the process of sizing and specifying the magnetic flow meter you want, it is crucial to consider whether the flow you want to measure has high electrical conductivity. I installed a open loop this past fall and have lots of noise from the discharge water, i used 12 inch gate valves for flow control and they generate noise when the water goes through them. Magnetic flow meters will generally not work with hydrocarbons, distilled water and many nonaqueous solutions. For more than 25 years, weve created affordable, durable measuring tools that provide datagathering solutions for multiple industries including the fracking. The antenna is a circular loop built with a copper tube outer diameter 14mm, thickness 1mm. According to the loop calculator programs, i should have been able to tune up to 10 mtrs with this capacitor. Our premium spring water is the smart choice if you love the taste and convenience of bottled water but also want to reduce your environmental impact.
It can perfom very well indeed but has been a bit temperamental lately. Magnetic water treatment is regarded as unproven and unscientific. The warmest water is sent around the perimeter of the room first and spiralled at 12 or 18 ft. Pedestrian water tuned loop october 2006 cq magazine. We offer durable, affordable, magnetic flow meters and environmental sensors. May 18, 2006 the higgins loop technology makes water with high levels of na and co3 safe for reintroduction to the environment.
It features a 3s lipo battery which is rechargeable as well as user replaceable. The loop layout would continue with this pattern until completion. There are two basic requirements to make a magnetic loop antenna work. The mag heater, heats the dynavap quick, stealthy and even without twisting. About magnetic loop antenna calculator the resource is currently listed in in 3 categories. Mag 8000 complies with the custody transfer approvals mid. The sitrans fm mag 5100 w with its patented liners of hard rubber nbr or ebonite and epdm is a sensor for all water applications. Nec modeling software does not accurately model this antenna. The ultra mag is an advanced, leadingedge magmeter that requires only 1d upstream and 0d downstream of most flow disturbers, and still maintains 0. However, it also requires retuning quite often in order to stay onband. Epanet is software that models water distribution piping systems. Like a car, water cooling systems for electronics circulate water in a loop between the heat sources and a cooling radiator. The axfa11 continues the tradition of high quality and reliability that has become synonymous with the yokogawa name and in addition features an even higher level of performance and increased functionality.
In order to have a complete flowmeter, please combine it with one of the following mag transmitters. The revolutionary new and enhanced hardware and software design results in a lowprofile, high performance flow meter that delivers precise flow readings due to its. Somehow i have some stray capacitance, and the effective minimum capacitance is about 20 pf instead of 10 pf. Indoor random wire versus indoor magnetic loop test kr1st. Using a mag loop in the field zfor small loops, use cheap photo tripod zfor larger loops, purposebuilt mast znonconductive mast better, must be insulated from loop zelevate 1 loop diameter zno advantage to higher loop height zkeep away from large metal objects like cars, ufos, t72 tanks, etc. The tees connecting the boilers to the primary loop should be as close together as possible. Although this online calculator is intended to assist with designing and building homemade, ham radio loop antennas for use in the hf bands, magnetic antennas have been. Measuring for process management, revenue collection, liquid transportation and energy conservation.
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