How to connect the car ammeter, how to connect the ammeter

The ammeter should be a "positive and negative binding post" rather than a "positive and negative pole", and only the power supply has a "positive and negative pole" and then get to the point: in physics, the direction of the current is defined as the direction of the positive charge movement, and outside the power supply, it is "from the positive pole of the power supply to the electrical appliance and then to the negative pole of the power supply". When using, the current should flow in from the positive binding post of the ammeter and flow out from the negative binding post according to the current direction; The same can be said of this:

Keep the positive binding post close to the positive end of the power supply and the negative post close to the negative end of the power supply". In addition, the following points should be paid attention to when using the ammeter:1

The positive and negative binding posts cannot be reversed 2It is absolutely not allowed to connect the ammeter directly to the two stages of the power supply, which will burn out the ammeter 3The ammeter should be connected in series in the circuit.

With a meter can only be connected to the battery, in order to show the swing you want, that is, what you said is the positive electrode series, but the ammeter is only connected in series, and I have never heard of parallel connection. It may be that the younger brother is shallow, so I'm just going to ** it. If you are connected to another place, it seems that the situation cannot be satisfied, and a current meter cannot meet your needs.

You can install a voltmeter that should meet your needs.

Exposure to an electric current is required to react.

Hello, it is recommended to go to the repair shop to pick it up, I hope my answer can be helpful to you, please set to, thank you!

Summary. How to connect the ammeter pro! Hello, I am glad to answer for you<> the connection method of the pro-ammeter is as follows: the ammeter should be connected in series in the circuit under test, from the wiring method of the ammeter, it can be known that the ammeter also has two terminals (the terminal of the multi-range ammeter may be more), after the tested wire is cut, it is connected to these two breaks.

The current flows from one end to the other end, and the indication mechanism of the ammeter shows the value of the measured current. (1) First of all, there should be an estimate of the current of the circuit, which should not exceed the maximum range, otherwise the ammeter will be damaged. (2) When connected to the circuit, the positive pole of the ammeter is connected to the electrical components or the positive pole of the power supply from the positive pole of the power supply, and the negative pole of the ammeter is connected to the electrical components or the negative pole of the current from the negative pole of the power supply, but the ammeter cannot be directly connected to the positive and negative poles of the power supply.

3) If it is a multi-range ammeter, when the current is uncertain, do not connect all of them first, and touch the terminal of the maximum range of the ammeter with a wire, and if you find that the swing is not very large, you can connect the circuit. The measuring range can be adjusted from large to small to improve the measurement accuracy, and if the maximum current approximation is known in advance, it can be directly connected to the appropriate measuring range. (4) The ammeter should be connected in series in the circuit; (5) It is never allowed to connect the ammeter directly to the two poles of the power supply.

Hope mine can help you <>

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How to connect the ammeter.

How to connect the ammeter pro! Hello, I am glad to answer for you<> the connection method of the pro-ammeter is as follows: the ammeter should be connected in series in the circuit under test, from the wiring method of the ammeter, it can be known that the ammeter also has two terminals (the terminal of the multi-range ammeter may be more), after the tested wire is cut, it is connected to these two breaks. The current flows from one end to the other end, and the indication mechanism of the ammeter shows the value of the measured current.

(1) First of all, there should be an estimate of the current of the circuit, which should not exceed the maximum range, otherwise the ammeter will be damaged. (2) When connected to the circuit, the positive pole of the ammeter is connected to the electrical components or the positive pole of the power supply from the positive pole of the power supply, and the negative pole of the ammeter is connected to the electrical components or the negative pole of the current from the negative pole of the power supply, but the ammeter cannot be directly connected to the positive and negative poles of the power supply. 3) If it is a multi-range ammeter, when the current is uncertain, do not connect all of them first, and touch the terminal of the maximum range of the ammeter with a wire, and if you find that the swing is not very large, you can connect the circuit.

The measuring range can be adjusted from large to small to improve the measurement accuracy, and if the maximum current approximation is known in advance, it can be directly connected to the appropriate measuring range. (4) The ammeter should be connected in series in the circuit; (5) It is never allowed to connect the ammeter directly to the two poles of the power supply. Hope mine can help you <>

Do you have any other questions?

I mainly want to ask questions 13 and 14 how to do it.

Dear, the ** you sent is too blurry, I can't see it clearly.

Dear: You can use software such as Homework Help to scan and answer questions.

The wiring methods of the ammeter are: series wiring, parallel wiring, clip-on wiring, current transformer wiring, and current amplifier wiring.

1. Series wiring method:

The series wiring method is the most commonly used wiring method for ammeters. In this wiring method, the two terminals of the ammeter are connected to two endpoints in the circuit, respectively, so that the current is passed through the ammeter. This wiring method is suitable for measuring DC circuits and AC circuits with low currents.

The connection between the series circuit and the parallel circuit, the series circuit is to connect the various electrical appliances in series. The characteristic of series connection is that there is only one path of current, the total voltage of the series circuit is equal to the sum of the voltages everywhere, and the equivalent resistance of the series resistor is equal to the sum of the resistances.

2. Parallel connection method:

The parallel wiring method is a special ammeter terminal ridge resistant method, which is suitable for measuring high current AC circuits. In this wiring method, the two terminals of the ammeter are connected in parallel to the two endpoints in the circuit, allowing the current to pass through the circuit and the ammeter. This wiring method avoids overloading or damage to the ammeter.

3. Clip-on wiring method:

The clip-on wiring method is a special method of ammeter wiring, which is suitable for measuring small currents in circuits. In this method of wiring, the clip of the ammeter is clamped to the wire in the circuit and the current is passed through the ammeter. This wiring method avoids damaging the enclosure or insulation of the circuit.

4. Current transformer wiring method:

The current transformer wiring method is a special ammeter wiring method, which is suitable for measuring high-voltage, high-current AC circuits. In this wiring method, the current transformer converts the high voltage and high current in the circuit into a low voltage and low current, and then measures the converted current through an ammeter. This wiring method avoids overloading or damage to the ammeter.

5. Current amplifier wiring method:

The current amplifier wiring method is a special method of ammeter wiring, which is suitable for measuring weak currents in AC circuits. In this wiring method, a current amplifier amplifies a weak current to a range that can be measured by an ammeter, and then measures the amplified current through an ammeter. This wiring method can improve the accuracy and sensitivity of current measurements.

Hello, the wiring steps of the ammeter are as follows: 1. When wiring, it is necessary to distinguish between the positive and negative poles, and the positive electrode can not be reversed from the positive electrode and the negative electrode out. 2. The ammeter should be connected in series with the load.

3. Under no circumstances can the ammeter be directly connected to the positive and negative poles of the power supply. Precautions: The ammeter must be connected in series at both ends of the disconnected circuit.

And pay attention to the positive and negative poles of the ammeter, the positive and negative binding posts can not be reversed (the current flows from the red terminal (positive) of the ammeter, and then flows out from the black cracked tan-colored binding post (negative)). In addition, the ammeter cannot be directly connected to the two poles of the power supply, otherwise the ammeter will be damaged, and the clever Yuzi must ensure good contact.

The core of the 5 ammeter is 5A, that is, it is directly connected to the 5A current pointer to fill the grid, but the dial is marked with 50A, so the ammeter must be equipped with a current transformer of 50 5, which is used to measure the current in the electrical mold circuit with a current of 30 to 50A.

2. If the current is between 60 and 100A, you can open the ammeter shell and change it to a 100A dial: 100 for the original 50, 80 for the original 40, and 60 ...... for the original 30, with a 100 5 transformer can be used. Reads by rewritten numbers when in use.

3. If the current transformer of 100 5 is a heart-piercing type, and the primary current is between 30 and 50A, and the ammeter is 50 5, you can give the transformer two turns (that is, the primary line passes through the transformer and then goes back and wears it again), and the transformer of 100 5 becomes 50 5, and it can be matched with the ammeter.

If the current transformer is not a heart-piercing type and cannot wear two turns, then the transformer cannot be changed to 50 5.

The connection process of the ammeter is as follows:Material preparation: one set of battery pack, one switch, two sets of small bulbs and bases, one ammeter and several wires.

1. Disconnect the switch.

2. Connect the small bulb switch and the battery in turn.

3. Connect the current interface in the direction corresponding to the positive electrode to the red terminal of the ammeter, if you can't estimate the current size of the car, you must connect to the binding post of the maximum range of the ammeter.

4. Connect the black binding post of the current closed liquid meter to the negative pole of the battery.

5. Close the switch and read the ammeter.

When the alternating current delay blind current meter is wired, it is directly connected in series in the circuit regardless of the positive and negative poles.

The AC ammeter mainly adopts the measurement mechanism of electromagnetic meter, electric meter and rectifier meter. The minimum range of the electromagnetic measuring mechanism is about tens of milliamperes, and in order to increase the range, the number of coil turns should be reduced proportionally and the wire should be thickened.

When the ammeter is constructed with an electric system measuring mechanism, the moving coil is connected in parallel with the static coil, and its minimum range is about tens of milliamperes. In order to increase the range, the range of the ammeter will be doubled by reducing the number of turns of the static circle, thickening the wire, or changing the two static circles from series to parallel. When measuring the AC current with a rectifier meter, the ammeter reading is correct only if the AC is a sinusoidal waveform.

A shunt can also be used to expand the range. In addition, high-frequency currents can be measured with a thermoelectric meter measuring mechanism. The large-range AC ammeter used in the power system is mostly a 5A or 1A electromagnetic system ammeter, and a current transformer with an appropriate current conversion ratio.