Indicator screwdriver: how to use? Instruction, photo

Multifunctional tool not so long ago experienced a surge in popularity in different segments. Users appreciated the advantages of the concept, noting the versatility and ergonomics of such models. But not always the producers managed to achieve the proper level of directly working qualities of such a tool when performing specific functions. This defect was deprived only of individual segments, in one of which the indicator screwdriver is presented. How to use this tool? To do this, you need to know the fineness of the phase and zero definition with the help of an indicator device. Professional electricians are familiar with such operations, but this process can bring many problems to home masters, not to mention the risk of making a mistake.

How does the indicator screwdriver work?

Traditional devices of this type are voltage testers. In each screwdriver a resistor is enclosed, which is connected to a metal rod acting as a conductor. Professionals usually use a special set of screwdrivers with different characteristics, which are oriented to electrical work. They differ both by their mechanical qualities, and by the ways they provide information about the parameters of the investigated circuit.

In the simplest models, the presence of the same voltage in the line will be indicated by an LED light bulb integrated into the housing. Contact models assume that the user will touch a special plate on the handle, thus closing the chain. If the indicator light comes on, then the phase is detected. In the case of a reverse reaction, we can state that zero is found. A non-contact indicator screwdriver is also common. How to use these models? The technique of detecting line breaks in this case is analogous to contact tools, only the user does not have to independently close the circuit.

Determination of zero and phase

The most common task faced by users of this tool. Usually, the difficulties in determining zero and phase occur in situations where the wires do not have a correct marking and the colors do not correspond to the actual characteristics of the circuits. Before the indicator screwdriver detects the phase, it is necessary to turn off the electricity on the input shield. Then the functional surface of the screwdriver tip touches one of the cores. The indicator lights up if the circuit is in phase. It is important to note that some models do not give a light signal, but work with sound notification. Accordingly, the phase in this case will be recorded by an audible signal. If no screwdriver responds, then the status of the wire is zero.

Also do not forget about the need to touch the pyat, that is, the plate, due to which there is a closure at the time of determining the polarity. This is important if a contact indicator screwdriver is used. How to use a contactless model? It has already been noted that it works on the same principle, but does not require the user to touch a special plate. But such screwdrivers are supplied with batteries, so check the power supply before starting work.

How to find a leakage current?

Another popular power supply problem that can be identified with an indicator screwdriver. First of all, you should bring the tool tip to one of the ground barcords of the surveyed outlet. If the indicator is activated, you can talk about the presence of a leak. But here we must take into account the initial voltage parameters. It is desirable to use a set of screwdrivers in which individual models are oriented to operation in different operating conditions of the circuit. If you need to check specific electrical appliances, the leak is detected by alternately testing each device. That is, the devices are connected to the outlet, and the light bulb also gives a response in the form of a light or sound warning.

How to detect a line break?

At once it is necessary to note, that such screw-drivers are not capable to show an exact place in which there was a breakage. However, the tool will help determine the problem area in which this place is located. To do this, you need to take the power distribution scheme and check all the sockets for power supply. But there is also one nuance in working with fixtures, which also allows you to check the indicator screwdriver. How to use the tool in this case? The break in such places is checked with power off, but with the light on. If the circuit on the switch is not closed, the screwdriver LED will show a break, but in fact it may not be.

General operating instructions

The testing tool requires special maintenance. Screwdrivers should be stored in a dry and protected from moisture place. If it is possible to perform a non-contact examination, then it is better to perform operations in gloves. Also, each time after a working session, clean the surface of the instrument from debris and dust. For example, the indicator screwdriver MS-18 from STAYER allows you to determine microwave radiation and hidden wiring. The effectiveness of these tasks largely depends on the condition of the hull and, in particular, its purity.

Conclusion

Despite the expanded functionality, such models of screwdrivers are inexpensive. Even large manufacturers, producing high-quality products, are implementing entry-level modifications at prices not exceeding 200 rubles. A professional indicator screwdriver, whose price can be of the order of 500-600 rubles, is also endowed with additional capabilities. Such a tool, in addition to determining the phase and neutral, is able to work with electromagnetic radiation, fixing their boundaries. However, for the same price, you can buy a set with screwdrivers, each of which will perform these functions in a separate order and with greater efficiency.