Indicator screwdriver - an indispensable tool in the house

You do not know how to work "indicator" and have no idea for what purpose I need it? In this article I will tell you in detail and try to make sure that it is very necessary and useful tools, the aforesaid just have to be in every home.

What types of indicators exist

Let's first take a look at existing types of equipment, as well as understand, they work on what basis.

1. The most primitive indicator lamp on the inside, but without an active power source (battery). Its working principle is as follows: electric current, hitting the tip of the tip passes through a resistor and leaving thereof, it falls directly on the llama.

Pay close attention to this one element:

This is the second plyamba contact and to identify whether or not there tension, it is absolutely necessary to cover the finger. Like this:

With the use thereof, the indicator you can find out where you are located, and zero phase. All this exhausted its function. The cheapest of all peers.

2. Indicator with battery sales. This device is a logical continuation of the previous version. It is integrated battery, as well as a bipolar transistor, the aforesaid you can see here on this circuit

Using this tool can perform such operation: the determination of a zero phase and veins, plus and minus in a vehicle, the determination of continuity of the connection, as well as hitless definition already invisible wiring (error of the method is very high, so it is listed for reference only and the material will not be disclosed) and serviceability checks Fuse.

When checking phase outlet using this indicator is no need to hold "plyambu" check is carried out even easier.

This set makes this light ideal for residential use.

3. Tester with an electronic control unit and a liquid crystal display. This version in addition to all the above functions may also indicate the current value of the mains voltage in the range of from 12 V to 220 V. At its core, it is permissible to call tseshka curtailed. This stock is not attractive, because its price is much more expensive than the tester in 3 to 5 times, and completely replace tseshka he is not capable. So, in fact, it is just a useless toy, onaya house absolutely not necessary.

The three most used types of testers, these should be found in any store. Well, now let's look at some examples of where you can apply a light in the house.

How to use the appliance

Important. Any inventory, prior to use, should be studied. Because of this device check to deliberately work equipment. For example, insert it into the outlet, where there is exactly looking voltage and phase and neutral. You Tester with battery, then take it in hand and at the same time touch the sting and nickle, the LED is required to be lighted.

With the pointer in the house can be made here such work:

Finding the zero and phase

This is the most common operation performed by the tester. To do this, We touch the tip of the screwdriver to the bare wires (or inserted into wall socket) and be sure to cash in on plyambu (if you have a tester without batteries). LED lights up, it means that the phase wire, if the LED is non-flammable then the wire is zero.

Determining the absence or presence of voltage

Check the presence or absence of voltage occurs on the same principle as described above, the LED is lit the voltage is, is not it - does not burn.

The determination device with a faulty wiring with breakdown of the housing

Find leaks using the device can be used only if you have a wire network. In the case that if you do not have a ground wire will be useless indicator. So you have three wires in the network. Therefore, to see whether you have a network device with a breakdown in the body can be so: a tray with battery indicator for the grounding contact sockets and observe if the LED is lit, there is a leak.

Now we use the elimination method and disconnect all devices on the network and start attach them one by one, at the same time seeing how it reacts to the diode, as soon as he caught fire, then the last of the connected devices, defective and need repair.

Checking of the working condition of the drill collar.

To do this you need a series of simple manipulations. Disconnect the extension cord from the mains, make a small piece of wire jumper and plug it into the socket extension, as shown.

Then we find a fork to one end of the tray sting with battery indicator and the second clamping finger. If the LED lights, carrying OK, but if not, then the extension cable is defective and in need of repair, which is much better done with the help of our channel.

Finding the wires hidden in the wall.

Due to the extreme inaccuracy this example it will not even be considered.

Still I remember a very interesting and easy way to check the integrity of the bulbs. Take it in your hand, touch the tip of the central contact, and penny pinched finger. LED light - the light is working.

That's what the light, as it turned out, this seems to be an ordinary screwdriver with a diode is a very useful equipment, the aforesaid just have to be in every home, without exception.

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