Showing posts with label Mengukur. Show all posts
Showing posts with label Mengukur. Show all posts

Friday, August 17, 2012

Mengukur Kapasitor Menggunkan Multi Meter

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Previous cargo in the condenser discharge (connected pin positive and negative). set the multimeter on the stride Ohm, paste investigator red poles on the positive and black on the negative.

When the needle deviate to the right and then a fade back to the left, the condenser means. When the needle does not move, condenser dropping out and when the needle moves to the full right and not back, the possibility of leaking condenser.


Cara mengukur menggunakan Multi meter

Notes:
To test elco 10 F x1k in stride. Capacity for up to 100 F at x100 stride, above 1000 F, x1 stride and test non-electrolyte condenser stride on x10 k.

Thursday, August 16, 2012

Mengukur Transistor Menggunakan Multi Meter

type='html'>Ekivalen transistor with two dioda combined, so that the test dioda principle applied to the test transistor.

Cara Mengukur Transistor Menggunakan Multi Meter

Multimeter set on step x100, investigators in the black paste on the base and red at th colector, needle should move to the right. When the investigators moved to Emitor red, needle should move to the right again.

Then the investigators red on the base and black at the Colector, needle should not deviate, and when investigators black moved to Emitor needle also must not deviate.

next Multimeter set on the step 1 k, investigator in the black paste the collectors and red on the emittor, needle must digress a little to the right and if the investigators behind, the needle should not deviate. When one of the events do not happen, then transistor damaged.

For PNP Transitor type, the test is done with the investigators red on the base and black on the colector, needle must digress to the right. Similarly, when the red investigator moved to Emitor, needle must digress to the right again.

Tuesday, August 7, 2012

CARA MENGUKUR |MENGUJI TRIAC

type='html'>Triode Alternating Current Switch (TRIAC)

There are three terminal on a triac. These are the Gate and two other terminals. These other triac terminals are often referred to as an "Anode" or "Main Terminal".
On the triac, the gate that acts as the trigger to turn the device on. The current then flows betweent he two anodes or main terminals. These are usually designated Anode 1 and Anode 2 or Main Terminal 1 and Main Terminal 2 (MT1 and MT2).
Simbol TRIACSimbol TRIAC

It can be imagined from the circuit symbol that the triac consists of two thyristors back to back. The operation of the triac can be looked on in this fashion, although the actual operation at the semiconductor level is rather complicated. When the voltage on the MT1 is positive with regard to MT2 and a positive gate voltage is applied, one of the SCRs conducts. When the voltage is reversed and a negative voltage is applied to the gate, the other SCR conducts. This is provided that there is sufficient voltage across the device to enable a minimum holding current to flow.

MENGUKUR |MENGUJI TRIAC MENGGUNAKAN MULTIMETER

A multimeter can be used to test the health of a triac. First put the multimeter selector switch in a high resistance mode (say 100K), then connect the positive lead of multimeter to the MT1 terminal of triac and negative lead to the MT2 terminal of triac (there is no problem if you reverse the connection).The multimeter will show a high resistance reading (open circuit).Now put the selector switch to a low resistance mode, connect the MT1 and gate to positive lead and MT2 to negative lead. The multimeter will now show a low resistance reading (indicating the switch ON).If the above tests are positive then we can assume that the triac is healthy. Anyway this test is not applicable triacs that require high gate voltage and current for triggering.

MENGUKUR|MENGUJI TRIAC DENGAN RANGKAIAN

Almost all type of triacs can be tested using this circuit. This circuit is nothing but a simple arrangement to demonstrate the elementary action of a triac. Connect triac to the circuit as shown in circuit diagram and switch S2 ON. The lamp must not glow. Now press the push button switch S1.The lamp must glow indicating the switching ON of triac. When you release the push button, you can see the lamp extinguishing. If the above tests are positive you can assume that the triac is healthy.
Rangkaian untuk mengukur triacRangkaian untuk menguji|mengukur triac

Friday, August 3, 2012

Mengukur Kapasitor Menggunakan Multimeter (AVO Meter)

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Mengukur Kapasitor Menggunakan Multimeter (AVO Meter)

Capacitor is a component that can store electrical energy in units of Farad. Discovered by Michael Faraday (1791-1867). Capacitor is now also known as the "capacitor", but the word "condenser" is still used today.

Identified capacitor has two legs and two poles of positive and negative and has a liquid electrolyte and generally tubular. Coat condenser (having positive and negative poles) in the electronics scheme.

Whereas the other species most of the lower capacity values, do not have a positive or negative poles on foot, mostly flat, round brown, red, green and others such as tablets or buttons are often called capacitors (capacitor).

At the present time, ignition is often referred to as a capacitor or abbreviated with the letter (C).
The unit is the Farad condenser. where 1 Farad = 9 x 1011 cm ² surface area, which means these pieces to be equal to 1 Farad 106 mikroFarad (μF), a 1 μF = 9 x 105 cm ².

condenser units are widely used are:

* 1 Farad = 1,000,000 μF (micro Farad)
* 1 μF = 1,000,000 pF (pico Farad)
* 1 μF = 1000 nF (nano Farad)
* 1 nF = 1000 pF (pico Farad)
* 1 pF = 1000 μμF (micro-micro-Farad)

Step measurement:

1. Select Scale F or select parts of other true-to-scale.
2. then the reply value is the value appearing condenser capacity they will be with the unit or micro-Farad Farad (-6 rank 10) or Nano Farad (-9 rank 10) or Piko Farad (-12 rank 10) Farad.

Mengukur Kerusakan Fet Dengan Multimeter

type='html'>Mengukur Kerusakan Fet Dengan Multimeter

FET is divided into two families: Junction FET (JFET) and Insulated Gate FET (IGFET) or also known as Metal Oxide Silicon (or semiconductor) FET (MOSFET). In contrast to the IGFET, the JFET gate terminal forming a diode with the channel (semiconductor material between the Source and Drain). In its function, this makes N-channel JFET to be a solid-state version of the vacuum tubes, which also forms a diode between the grid and cathode. And also, both (JFET and vacuum tubes) work in "depletion mode", both have a high input impedance, and they conduct electrical current under the control of the input voltage.

Mengukur Kerusakan Fet Dengan Multimeter
Mengukur Kerusakan Fet Dengan Multimeter

Determination of FET performed by investigators x100 range of black and red on the Source Gate. When the needle to deviate, then the FET is kanalP Janis and if not, the FET is the channel N.

Damage to the FET can be observed with a series of pictures. Range is placed on x1k or x10k, potensio at a minimum, the resistance should be small. When potensio rotated to the right, the resistance should be infinite. If this does not happen, then the possibility of FET damaged.