What is Ammeter
Dec 23, · What is ammeter The ammeter is also known as ampere meter and used for measurement of electric current and the unit of the current measured by this meter is ampere so it also called ampere meter. Definition: The meter uses for measuring the current is known as the ammeter. The current is the flow of electrons whose unit is ampere. Hence the instrument which measures the flows of current in ampere is known as ampere meter or ammeter. The ideal ammeter has zero internal resistance.
Last Updated: October 16, References. This article was co-authored by Jesse Kuhlman. Jesse is also the map of four eBooks on home wiring including "Residential Electrical Troubleshooting" which covers basic electrical troubleshooting in residential homes. There are 15 references cited in this article, which can be found at id bottom of the page. This article has been viewed 39, times.
Whether you are doing diagnostics or just learning about circuits, knowing the current is an important part of electrical work. Current is the measure of the flow of electricity through a circuit in amperes amps by a device known as an ammeter. Log in Social login how to upload own music on myspace not work in incognito and private browsers.
Other power supplies may be AC or DC, and some can alternate between both. Check the power supply manual or label to determine its current type. Test the internal fuse of your ammeter. This will only take you a second and it will save you some time wasted on false readings.
Hold these together with how to replace the motherboard ammeter on. If the resistance rating is low, your fuse is good.
You may have to adjust the power range before it can read the low level ls a qn fuse. Most ammeter fuses can be easily replaced or reset, though this process will vary according to your brand and model. If you adjusted the power range lower to check the fuse, reset the range to how to bake potatoes in oven without foil maximum to prevent the fuse from blowing when taking the actual amperage.
Break the circuit. But before you do, make sure the power is off and all batteries are removed to prevent getting zapped. Now you need to create a break in the wiring between the negative - terminal of the power source and the power input for the item receiving power. The ammeter will be tied into the circuit at this break so that electricity passes through the meter on its way to the item being powered, allowing the meter to take a reading.
Part 2 of Connect the ammeter leads to wgat circuit. This process what is an amp meter depend on your model of ammeter. Essentially, the negative - end of your how to get smart notebook 10 for free will connect to the power source side of the broken circuit. Most ammeters use color coding to indicate positive and negative ends of a circuit. This may be different from country to country, but in many cases, red will represent positive and black negative.
Other models may use metal probes that you'll wrap the wire around. You can also simply hold the leads of your ammeter to the bare wires of the broken circuit. Prevent exposed wire from touching anything while the circuit is engaged. Restore power to the circuit and take the reading. Switch the power source back on or reinsert the batteries for the circuit. Electricity will now pass through the meter, causing it to display the amperage of the current.
Doing so could cause the circuit to short, an electrical fire, or a false reading. Cut power and return the circuit to normal.
Now that you have your reading, you can turn off power to the circuit once again. Part 3 of Identify induction sensors. The induction sensor reads current through the electromagnetic field given off by the electricity.
Mdter the sensor around the power input wire. Locate the negative - terminal for the power source. The wire that runs between this and the item being powered is your power input line. Open the clamp and enclose it around the whag input wire.
Set the ammeter to auto. Setting the ammeter to auto will allow the meter to automatically adjust what is an amp meter range it is measuring. This will prevent you from blowing a fuse in the meter. If you need to adjust any other settings, this is the time to do it. Take the reading and remove the ammeter.
Depending on your model, there may be a button you need to push, like a trigger, before keter starts taking a reading. Other units might take a reading as soon as they are set to auto. Did you know you can read expert answers for this article?
Unlock expert answers by supporting wikiHow. Jesse Kuhlman Master Electrician. Jesse Kuhlman. Support wikiHow by unlocking this expert answer. Yes No. Not Ampp 0 Helpful 0. Include your email address to get a message when this question is answered. Related wikiHows How to. How to. Master Electrician. Expert Interview. More References 6. About This Article. Co-authored by:. Co-authors: 7. Updated: October 16, Categories: Measuring and Marking Tools. Thanks to all authors for creating a page that has been read 39, times.
Apr 04, · As we all know an ammeter is an electronic device used to measure currents thus it is connected to a measurement system. In the same way, an ammeter is nothing but an ampere measurement Ampere is a no unit for measuring a current. This meter is used to measure the current. Oct 22, · Meter is an instrument which can measure a particular quantity. As we know, the unit of current is Ampere. Ammeter means Ampere-meter which measures ampere value. Ampere is the unit of current so an ammeter is a meter or an instrument which measures current. Jun 08, · Whether you are doing diagnostics or just learning about circuits, knowing the current is an important part of electrical work. Current is the measure of the flow of electricity through a circuit in amperes (amps) 63%(7).
As we all know an ammeter is an electronic device used to measure currents thus it is connected to a measurement system.
In the same way, an ammeter is nothing but an ampere measurement Ampere is a no unit for measuring a current. This meter is used to measure the current. The Alternating current converts the current into regular intervals while the direct current flows in one direction. Definition: An instrument or device used to measure the current flowing in an electric circuit. Such an instrument is called an ammeter. The current SI unit is ampere.
This is also known as ammeter or ampere meter as it measures the current. The working principle of an ammeter depends on the current flowing along with its resistance. Very little impedance is used inside the ammeter as it must drop the least amount of voltage attached to it.
The ammeter is connected to the series of circuits as the current in the series circuit is the same. The main function of this tool is to measure the flow of current with the help of a set of coils. Inside this coil, there is very little resistance and inductive reaction. This type of meter is used to measure both AC power and DC power.
This device uses magnetic deflection where the current will flow with the help of a coil to rotate in a magnetic field. The coil in this device rotates freely between the permanent magnet poles. An electrodynamic ammeter consists of a rotating coil to rotate in a field created with the help of a fixed coil. With the help of this instrument, AC and DC power can be measured with an accuracy of 0.
This is more reliable when compared to a rotating coil and a fixed coil. The calibration of this device is the same for AC and DC. Moving-iron type ammeters are used to calculate AC power and voltages. This system consists of pieces of soft iron specially made in a movable system, which are acted upon by a fixed coil electromagnetic force made of wire.
Devices of this type are classified into two parts, one is repulsion and the other is attraction. This device uses different components such as a moving element coil, control, damping, and reflective torque.
This type of device is used to measure the current in the ampere whose value is displayed on the display. A shunt resistor is included in its design to create a calibrated voltage of such a device. Which is in proportion to the current flow. This device provides information about load and continuity on the current circuit so as to help the customer to overcome variable loads and trends.
This is used to heat and spread the wire with the help of AC power and DC power. Which is known as a hot wire. The working principle of this is that it extends the wire by providing the effect of heat from the current supply.
This makes it possible to use both AC and DC flows. The construction of the ammeter is made possible by both series and shunt In the figure below you can see the meter made in both series and shunt which we will talk about in detail.
So the power consumption is due to its internal resistance and parameter current within this meter. This circuit uses low resistance so that low voltage drop in the circuit.
The resistance is kept low in the parallel ammeter circuit so that the total current will flow from the ammeter and drop low voltage across the device. When a high current from the circuit passes through this device, its internal circuit can be damaged. The shunt resistance is connected in parallel to the emitter to avoid the problem of high current.
If a high current passes through the circuit then the main current passes through this shunt resistance. This resistance does not prove to be a hindrance to the function of the device.
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