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Topic: Ammeter

 Ammeter - Wikipedia, the free encyclopedia An ammeter is a measuring instrument used to measure the flow of electric current in a circuit. Moving iron ammeters use a piece or pieces of iron which move when acted upon by the electromagnetic force of a fixed coil of (usually heavy gauge) wire. More modern ammeter designs are non-mechanical, or digital, and use an analog to digital converter to measure the voltage across the shunt resistor. en.wikipedia.org /wiki/Ammeter   (373 words)

 Ammeter: Facts and details from Encyclopedia Topic   (Site not responding. Last check: 2007-10-08) An ammeter is a measuring instrument[Follow this hyperlink for a summary of this subject] used to measure the flow of electric current[For more, click on this link] in a circuit Electrical network quick summary: (such an ammeter can actually just clamp on to an existing conductor (where the conductor acts as a single-turn coil); this later example is sometimes used in automotive applications where it clamps-on to the main battery[For more, click on this link] wire to show the charging and discharging of the battery. A clamp meter is a type of ammeter which measures ac current without the need to disturb the wiring through which the current is flowing.... www.absoluteastronomy.com /encyclopedia/a/am/ammeter.htm   (1218 words)

 Ammeter Sensitivity Ammeter sensitivity is the amount of current necessary to cause full scale deflection (maximum reading) of the ammeter. For example, an ammeter with a maximum current reading of 1 milliampere would have a sensitivity of 1 milliampere, and be more sensitive than an ammeter with a maximum reading of 1 ampere and a sensitivity of 1 ampere. To obtain accurate measurements, it is necessary that the ammeter resistance be much less than the load resistance, since the ammeter is connected in series with the load. www.tpub.com /neets/book3/7g.htm   (1064 words)

 Deltec Company DC Ammeter Shunts The terminal blocks on the ammeter shunts are made of high quality brass to allow proper heat dissipation and provide strong support for the entire shunt. All Deltec Ammeter Shunts are warranted against defects in materials and workmanship for a period of 1 year. All Deltec DC Ammeter Shunts, Fuse Blocks, and Cables are warranted against defects in materials and workmanship for a period of 1 year. www.deltecco.com   (326 words)

 Ammeter   (Site not responding. Last check: 2007-10-08) So to introduce an ammeter into the cockpit area means running a high amp line to and from the dash nullifying that added safety. is to connect the ammeter with both the battery/solenoid and the alternator output connected to the same side. is to put the ammeter in the alternator feed line with booth the battery/solenoid line and the feed to the Ignition and Fuse Block connected to the same terminal. www.gmceast.com /amp.htm   (714 words)

 Ammeter - Holdenpedia Installation of an ammeter requires relocating the Alternator Feed from the Battery Positive to the Negative side of the Ammeter. An ammeter is wired in such a way that it tells the driver whether current is flowing into the battery, out of the battery or when no current is flowing either way. A reading of 0 shows that the voltage on both sides of the ammeter is the same or in other words no current is flowing in or out of the battery and the battery is fully charged. www.oldholden.com /possible/index.php/Ammeter   (329 words)

 AMPEREMETER, or AMMETER - Online Information article about AMPEREMETER, or AMMETER   (Site not responding. Last check: 2007-10-08) Thermal ammeters recommend themselves for the following reasons:—(I) the same instrument can be used for continuous currents and for alternating currents of low frequency; (2) there is no temperature correction; (3) if used with alternating currents no correction is necessary for frequency, unless that frequency is very high. If these conditions are not fulfilled sufficiently, the ammeter will not give the same indications for the same current if that current has been reached (a) by increasing from a smaller current, or (b) by decreasing from a larger current. Direct reading equidivisional movable coil ammeters can be made in various portable forms, and are very much employed as laboratory instruments and also as ammeters for the measurement of large electric currents in electric generating stations. encyclopedia.jrank.org /ALM_ANC/AMPEREMETER_or_AMMETER.html   (4999 words)

 Pantera Ammeter The Veglia ammeter is summing two magnetic fields and, other than a small amount of friction in the needle pivots, has no damping mechanism to slow the speed with which the indicating needle can move. The ammeter can be disassembled by using a very small screwdriver to pry the trim ring away from the vertical part of the body of the ammeter starting at the gap. While you have the ammeter open, verify that the rivet holding the lighting ground lug to ammeter case is tight. www.panteraplace.com /page178.htm   (1650 words)

 Ammeter Report   (Site not responding. Last check: 2007-10-08) Ammeters are used to measure the flow of electrons through a given location in a set period of time. Since ammeters deal with the amount of current moving across a given area in a given amount of time, their ideal resistance should be zero. In order for the ammeter to work properly first you connect the positive terminal of the ammeter in the direction that the current flows and have the current existing out of the negative terminal. www.eng.morgan.edu /~mharris/IEGR470/amm.html   (415 words)

 ammeter An ammeter is a device that detects an electric current. To measure the sensitivity of your meter connect a calibrated ammeter in series with a battery and a variable resistor. Use a callibrated ammeter in series with your ammeter and move the large magnet until the central disk magnets make a 45 degree angle with the axis of the tube. isaac.exploratorium.edu /~pauld/summer_institute/summer_day15current/ammeter.html   (827 words)

 Ammeter Bypass   (Site not responding. Last check: 2007-10-08) Over time, the ammeter used in '73-'85 Full-Sized Jeeps tend to increase in resistance, and eventually overheat to the point where the wires running to and from it overheat, melt the insulation and either take out adjacent wires or short out entirely. That means that the battery is being charged by the alternator EXCLUSIVELY through a 10-gauge wire that runs from the alternator, to the firewall bulkhead, to the ammeter, back to the bulkhead connector, then over to the (+) stud on the starter relay on the passenger-side firewall. Over twelve feet of 20 or 30-year old 10-gauge wiring, with an ammeter in-line, is often strained by charging the battery. www.drbob.tqhosting.com /tech/ammeter.htm   (491 words)

 Ammeter shunt - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-10-08) An ammeter shunt is a known low-resistance connection between two points in an electric circuit that forms an alternative path for a portion of the current. The voltage drop across the shunt is used in conjunction with an ammeter to measure current of a circuit. Commercially manufactured shunts are typically available in either 50 or 100 millivolts. en.wikipedia.org /wiki/Ammeter_shunt   (93 words)

 Ammeter Design   (Site not responding. Last check: 2007-10-08) Ammeters, as well as voltmeters and ohmmeters, are designed with the use of a sensitive current detector such as a galvanometer. An ammeter is placed in series with a circuit element to measure the electric current flow through it. The meter must be designed offer very little resistance to the current so that it does not appreciably change the circuit it is measuring. hyperphysics.phy-astr.gsu.edu /hbase/magnetic/ammet.html   (139 words)

 The Ammeter: Measuring Current   (Site not responding. Last check: 2007-10-08) An ammeter displays current measured in amperes (or milliamperes or microamperes). In order to measure current, an ammeter must be place into the circuit so that the current used by the circuit flows through the meter. Connect the meter, placeing the positive lead of the ammeter on the poitive side of the circuit and the negative lead on the negative side of the open part of the circuit. btl.usc.edu /javarides/ammeter-ifc.html   (491 words)

 DELTEC AMMETER SHUNT RESOURCE PAGE An ammeter shunt is a very low-resistance connection between two points in an electric circuit that forms an alternative path for a portion of the current. Shunt voltage drop is used in conjunction with an ammeter to measure amperage of a circuit. For example, if continuous current for an application is 500 amps, the ammeter shunt rating should be no less than 750 amps. www.deltecco.com /resources.htm   (297 words)

 The Galvanometer as a Voltmeter and an Ammeter To use the galvanometer as a voltmeter, a resistor is placed in series with the meter. To use the galvanometer as an ammeter, a resistor is placed in parallel with the meter. The data from the use of the galvanometer as an ammeter is in Table 2. www.thought.net /jason/phy252/exp07   (568 words)

 Pyrometer - P-907 Precision DC Ammeter digital display Designed for the PYRO Optical Test Set, the DC Digital Ammeter can be used for a wide variety of applications where high accuracy is critical. The unit has a built-in brass shunt that is pre-set and calibrated at the factory for simplistic plug in and read operation. To operate the DC Ammeter, the user must first connect the load positive (+) and negative (-) feed wires to the unit. www.pyrometer.com /d_ammeter.html   (187 words)

 AMMETER An ammeter should have a small resistance so the effect of the ammeter on the circuit will be kept to a Ammeter sensitivity is the amount of current that causes 0 full scale deflection of the ammeter. Shunt F resistors are used to provide an ammeter’s ranges. www.tpub.com /content/neets/14175/css/14175_72.htm   (139 words)

 Shunt Ammeter   (Site not responding. Last check: 2007-10-08) The Circuit is for a 'Shunt' type ammeter that allows a meter movement with a small current rating to be used to measure a much larger current. In this example 1 milliamp through the meter coil will represent 1.5 amps by shunting most of the current through the 0.1 Ohm resistor. To calibrate the circuit, another ammeter is connected in series with the new meter and a load applied. home.cogeco.ca /~rpaisley4/Ammeter.html   (605 words)

 Ammeter   (Site not responding. Last check: 2007-10-08) An ideal ammeter has zero resistance so that the the circuit in which it has been placed is not disturbed. However, as with the voltmeter, no ammeter can ever be ideal, and therefore all ammeters have some (hopefully) small internal resistance. Set the multimeter to the ammeter mode for dc current measurement. www.ee.duke.edu /~cec/final/node22.html   (173 words)

 Furman PM-8 Enhanced power conditioner and volt/ammeter (120V/15A)   (Site not responding. Last check: 2007-10-08) It has both a voltmeter and an ammeter. The ammeter reads true RMS current, so it will indicate reliably and meaningfully for all loads, including inductive and capacitive loads such as power amplifiers. The normal range voltages are indicated in green, with moderately and extremely high or low voltages in yellow and red respectively. www.djmart.com /fupmenpocoan.html   (1112 words)

 Ageless Tractor Parts Gauges:Ammeter   (Site not responding. Last check: 2007-10-08) Ammeter gauge, New, Oliver tractors Super 44 55 66 77 Ammeter, IHC, original style, Cub, Super M, C tractors Ammeter, New, Ford 8n, 9n, 2n, naa tractors www.agelesstractorparts.com /servlet/Categories?category=Gauges:Ammeter   (35 words)

 Hall Ammeter Installation?   (Site not responding. Last check: 2007-10-08) Per the (+) and (-) indicators on the back side of the new Hall ammeter, they are reversed - meaning that the (+) marked post corresponds to the (-) side of the front ammeter guage and vice-a-versa? Also re the Hall ammeter, it seems that it would be easiest to connect the (+), (-) and ground connections on top of, and after the plastic trim/hold down unit is in place and fitted over the three brass stud posts. To connect the terminals first and then try and slip on the hold down unit would not work near as well (if at all) with the original wire connector configurations. www.realbig.com /detomaso/1998-05/705.html   (205 words)

 ELEC 241 Lab - Experiment 1.1 The bulb should light and the value of the current flowing should be displayed on the DMM. An ammeter must always be connected in series. NEVER connect an ammeter in parallel with a circuit element. www-ece.rice.edu /~jdw/241/exp1.1.html   (1150 words)

 ammeter on Encyclopedia.com   (Site not responding. Last check: 2007-10-08) Digital DC ammeters mate directly with standard shunts.(Test and Measurement) Magazines and Newspapers for: ammeter or search in Pictures and Maps for ammeter LED Display, digital DC ammeters feature built-in shunts. www.encyclopedia.com /html/a1/ammeter.asp   (146 words)

 digital ammeter   (Site not responding. Last check: 2007-10-08) This digital ammeter measures from -75 to + 75 amperes. In our motorhome, I thought the original ammeter in the 12 volt circuit was the solar panel current was measurable via the ammeter on its regulator. www.home.aone.net.au /~yukan/ammeter.htm   (253 words)

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