Indication of concealed wiring: operating principle and instruction for use. Survey of devices for the detection of hidden wiring

The indicator (the tester of the latent wiring) is intended first of all for search of a chain of pressure. In this case, it is able to detect various electromagnetic radiation. The power of the perceived signal depends on the model of the indicator. As a rule, the device is able to detect electromagnetic radiation with a power of up to 0.4 mW.

Another function of the testers is to search for metal objects. In this case, it is possible to detect them only at a certain distance from the device. Usually this distance can be a maximum of 55 mm. In this regard, more conventional metal detectors are more powerful. The network integrity check can be performed with a resistance of not more than 50 ohms. Some models are available with the ability to determine the polarity in the wires. This can only be done with a constant current.

Detector Panel

On the front panel of the indicator there is a mode switch, and also a regulator. It is designed to search for metal objects. In addition, on the side of the device, a button is installed to turn on the flashlight, which will help to work in a dark room. On the other side of the indicator there is a touch probe and a movable sensor, which is assembled. At the bottom of the device next to the product marking is the contact plate.

Checking the device and performing calibration

The test of the indicator is easy. First, configure the device switch. As a rule, he is able to occupy three positions. In this case, you need to put it in the middle. The second step is to adjust the probe. To do this, use the contact plate located at the bottom of the indicator. Further, the probe is placed at an angle exactly 90 degrees. Only then can the contact electrode be pressed on the side panel of the device. If the wiring tester is working properly, and the battery voltage is supplied, then the display will instantly flash. In addition, in many models, an intermittent signal sounds.

To calibrate the indicator, the switch is set to the first position. After this, the plate is moved away, and the probe is installed at an angle of 180 degrees. Next, set the sensitivity knob. For this purpose, the wheel must be turned up to the very end. After that, the display system is activated in the device. For calibration, start turning the wheel in the opposite direction and wait for the lamp to go out. The sound signal should stop.

Finally, leave the sensitivity knob and take any metal wire. The indicator of the hidden wiring to it should be brought to a distance of at least 30 mm. If the LED lights up again, the device has successfully passed the calibration.

Using the indicator

How to check the wiring in the apartment? To search for a circuit with alternating current, the first mode on the device is used. You can set it using the switch on the side panel of the device. In this case, the movable sensor must be in the assembled state. Determine the exact location of the chain from the outlet. During operation, it is important to keep the tester on the wall with the front part.

If you expand the device, you need to change the sensitivity settings. This can be done with a special regulator. To search for electromagnetic radiation in the circuit, the second mode is used. In this case, the movable probe must also remain assembled behind the plate. First of all, the signal is checked on the socket. Next, the device should be removed from it and monitor the indicator. If the sound signal during operation is absent, means, in this place there is no chain. In addition, it is important to consider that the device will show a signal with a power not exceeding 0.4 mW.

Principle of operation of the device

When the cable tester is in close proximity to the wiring, a resistor is triggered. It is connected in the device with a static electricity chip. To transmit the signal to the unit, there is a special antenna, which is represented in the form of copper wire. Eventually, the signal reaches the emitter. In some models, sound indication is additionally installed. In this case, the resistance of the resistor is only sensed up to 50 ohms. The coils in the device are charged from the battery.

Indicator "Bosch 120"

Hidden wiring in the wall with this indicator is detected very quickly. The detection depth is 30 mm. The chip in this model is installed in the "DD1" class, and the LED is of the "H1" type. In total, the device has three channel transistors. In general, the current transfer coefficient is quite high.

A clear disadvantage of the indicator is excessive sensitivity. At the same time, adjusting the controller is sometimes very difficult. Power supply of inverter type. In general, the model was compact and convenient and well suited for repairing wiring. The standard kit includes one 9 V battery, two markers, and a protective case. The model "Bosch 120" stands on the market of 5000 rubles.

Non-contact indicator "Fluk LVD2"

Hidden wiring with this indicator of American production is revealed quickly. The device has a pencil-type construction. A distinctive feature of this model is a powerful flashlight. The induction in the device is double, the security level is quite high. At the same time, the performance of the device as a whole is high. Voltage is detected by the device in the range from 100 to 500 V.

Open wiring to the current can be checked. Use the indicator at minus temperature is allowed. The standard kit includes AAA batteries. The chip in this model is "DD1" with a contactless probe. In this case, the LEDs are installed in the "P1" series. In total there are three inverters with the amplifier in the case. In addition, it should be noted quality transistors. The length of the antenna in the device is 20 mm. The "Flood LVD2" tester will cost the buyer 6000 rubles.

Model "Testoe Ice"

This model is easy to use, and also durable. At the same time, the search for the wiring in the wall will not take much time. The display in this instrument is visual, and the measurement range is selected in automatic mode. The adapter of the touch probe is installed quite high quality. It is made entirely of copper and has a thickness of 4 mm.

The protection class in this model is "IP65", and the device is automatically disconnected. The workplace is backlit with a white LED. Ultra-low voltage display system is easy to determine, and this is undoubtedly an advantage. In addition to light and sound signals, the device can be tuned for vibration during operation. Testing "Testoe Ice" is quite simple, and a single-pole phase check is possible.

The indication from the tester is able to work even at a voltage of 100 V. Transistors in this model are installed bipolar type. The risk of a short circuit in the device is practically nonexistent. In addition, it should be noted very high-quality capacitors in the indicator. They are made entirely of aluminum and have good conductivity. The indicator of detection of hidden wiring "Testboy Ice" costs about 4000 rubles.

Parameters of indicator "Testba Pro"

There is no visual indication in this model. The voltage indicator in the device is bipolar. In this case, it is equipped with a convenient scoreboard with notations. It also has a light indication. The case in this model is completely made of plastic. At the same time, he is not afraid of dust and moisture. The indicator on full charge of batteries can be used for quite some time. The RCD is only checked using two buttons. The protection class in the tester is "IP65".

Dimensions of the above device has the following: height - 280 mm, width - 75 mm, and thickness is 20 mm. In general, the model "Testba Pro" turned out to be compact and weighs very little. The power range is selected in automatic mode. Open wiring to the current can be checked. Adjustment of sensitivity is carried out by means of a regulator. LED light bulb in this model is available. The end adapter is installed 4 mm thick, and if necessary, it can be easily unscrewed. At a minimum, the device will see the voltage in the 35 V circuit. At the same time, the user will hear a characteristic sound signal. The price for the model "Testba Pro" fluctuates around 5500 rubles.

What is the difference between the "Testboy Plus" indicator?

This device belongs to the class of bipolar. A distinctive feature of this model are good indicators and a clear scoreboard. Among other things, we can distinguish the excellent quality of the device as a whole. The body of "Testboy Plus" is made of plastic. In addition, it has a rubber trim.

The constant and alternating voltage tester detects in the range from 10 to 400 V. In this case, the search for a phase in the protective conductor is possible. In total, the manufacturer provides eight LEDs. The dimensions of the concealed wiring indicator are as follows: height - 120 mm, width - 65 mm, and thickness - 25 mm. In general, the form turned out to be quite interesting, and the tester in the hand holds firmly and does not slip. It is worth about 3300 rubles on the market.

Overview of the detector "Voll Pro"

The hidden wiring in the wall with the help of "Voll Pro" is revealed quickly. This indicator has a display, and with it you can observe all the parameters. For convenience of use the device is equipped with a special toggle switch. With it, you can easily select the operating modes. In addition to wiring in the wall, you can find various plastic and wooden objects. Network under voltage will be visible at a depth of not more than 35 mm. During work on the scanned area, there is a bright light beam.

It is possible to make identification of the center of construction in the wall. However, most other models are able to show only the boundary of the object. When a posting is detected for the user, a distinctive beep sounds. The protection system in this device is class IP5. At the same time, he is absolutely not afraid of dust. Use "Voll Pro" on a damp surface by the manufacturer is not recommended. The height of this model is 189 mm, width 80 mm, and the thickness is exactly 30 mm. At full charge of the batteries the indicator is able to continuously work for five hours. In general, the model from the manufacturers turned out to be successful, and is well suited to make the repair of the wiring. The price of "Voll Pro" varies around 4500 rubles.

Model of the indicator "Wave Control"

Detect wiring this model is capable of a depth of 30 mm. The light beam is pretty bright. In total, the model provides two modes. The protection class is of the "IP5" type, and the device is not afraid of dust and moisture. At full charge of the battery, the device will stay in operation for about eight hours.

Of the features can be identified good transistors and powerful capacitors. The length of this model is 170 mm, width 75 mm, and thickness 48 mm. In general, it turned out to be convenient and practical. The display in the device with illumination, and use it in a darkened room is quite comfortable. Also worth noting is a good rubberized case. As a result, the device reliably holds in the hand and does not slip due to the overlays. Among domestic brands, you can definitely stay on this model. It is worth "Wave Control" in the store about 2200 rubles.

Overview of the device "Stanley Pro 20"

This hidden indicator is equipped with a fairly large LCD display. A distinctive feature of this model is the rapid detection of the cable. Due to the powerful transistors, the voltage in the network is shown in seconds. Another thing to note is the laser emitter of the device. It is integrated into a special removable unit. Directly the beam can be formed at almost any angle, which is very convenient for the user. The case of the device is made of ABS plastic. Its distinctive feature is increased strength.

Thus, the indicator is not afraid of mechanical damage and can last for many years. Find "Stenley Pro 20" metal objects not under tension can. In addition, you can search the wall for wooden objects. The laser beam is very bright, so the marking is done quite accurately. In this case, it is possible to make it level. Batteries are included in the standard set of the indicator. In general, they are high-quality and can last for long thanks to the auto-shutdown function. A mode of continuous detection of conductors is available.

Among other things, it should be noted a powerful audio signal, which, if necessary, can be turned off. The search for copper wiring can be carried out at a depth of more than 25 mm. To fix the device on the working surface on the body there are special platforms. It is worth this unit on the market in the area of 5500 rubles.

Voltage detector ADA ZC 1000

This indicator of concealed wiring refers to cheap detectors of contactless type. A distinctive feature of this model is the LED, which glows red. However, there is no sound indication in the ADA ZC 1000. The device can be used at a temperature of -10 to +40 degrees.

The maximum device is able to detect wiring with a voltage of 200 V. The average frequency should be at 55 Hz. The moisture content of the surface must be no more than 90%. As a result, this indicator of Chinese production is able to boast of its simplicity and cheapness. The ADA ZC 1000 will cost about 1000 rubles.

Overview of the tester "DeMort DMM-20"

The "DeMort DMM-20" tester stands out for its compactness. Any protruding parts on the hull are missing. At the same time, electrical wiring in the wall is detected very quickly. In general, this device is easy to use, and there is only one mode. With its help you can determine the voltage of the network at a shallow depth.

There are two LED indicators in this device. The first light comes on when the network is more than 20 mm apart. The second indicator will only work in close proximity to the wiring. Sound alarm in this model is installed. The length of the device is 200 mm, the width is 80 mm, and the thickness is 35 mm. The "DMM-200" tester cable weighs 18 kg, and it will cost the buyer 1,100 rubles.