Indicator (hidden wiring tester) is intendedprimarily to search for a voltage circuit. At the same time he 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 testers is to searchmetal objects. At the same time, it is possible to detect them only at a certain distance from the device. Usually this maximum distance can be 55 mm. In this regard, conventional metal detectors are more powerful. Network integrity can be checked with a resistance of no more than 50 ohms. Some models are available with the ability to determine the polarity in the wires. This can only be done at a constant current.
Detector panel
The front panel of the indicator hasmode switch and controller. It is designed to search for metal objects. Additionally, on the side of the device there is a button for turning on the flashlight, which will help to work in a dark room. On the other side of the indicator there is a contact probe and a movable sensor, which is assembled. At the bottom of the device, next to the product marking, is a contact plate.
Device check and calibration
Testing the indicator is donequite simple. The first step is to 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 dipstick. To do this, use the contact plate, which is located at the bottom of the indicator. Next, the probe is placed at an angle of exactly 90 degrees. Only then can you press the contact electrode on the side panel of the device. If the wiring tester is working properly, and the voltage from the batteries arrives, then the indication will immediately work. Additionally, in many models, an intermittent signal sounds.
To calibrate the indicator switchexhibited in the first position. After that, the plate moves back and the probe is set at an angle of 180 degrees. Next, set the sensitivity control. To this end, the wheel must be turned up to the very end. After that, the display system is activated in the device. To calibrate, you should start turning the wheel in the opposite direction and wait until the light goes out. In this case, the beep should stop.
Finally, leave the regulator.sensitivity and take any metal wire. Indicator hidden wiring to him must be brought at a distance of at least 30 mm. If the LED still works again, the device has successfully passed the calibration.
Use indicator
Как проверить проводку в квартире?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. To determine the exact location of the chain should be from the outlet. During operation, it is important to hold the tester against the wall in the front.
If you deploy the device, you need to changesensitivity settings. This can be done with the help of a special regulator. To search for electromagnetic radiation in the circuit using the second mode. In this case, the movable probe must also remain assembled behind the plate. The first signal is checked at the outlet. Next, the device should be removed from it and follow the indications of the indicator. If there is no sound signal during operation, it means that there is no circuit in this place. Additionally, 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 directproximity to the wiring, triggered resistor. It is connected in a device with a static electricity microcircuit. To transmit a signal to the unit there is a special antenna, which is presented in the form of copper wire. Ultimately, the signal reaches the radiator. In some models, the sound indication is additionally set. In this case, the resistance of the resistor is perceived only up to 50 ohms. Coils in the device are charged from the battery.
Indicator "Bosch 120"
Hidden wall wiring with this indicatordetected very quickly. The detection depth is 30 mm. The chip in this model is installed class "DD1", and the LED has a type "H1". In total, the device has three channel transistors. In general, the current transfer ratio is quite high.
A clear disadvantage of the indicator is excessivesensitivity. At the same time, it is very difficult to adjust the regulator. Inverter power supply. In general, the model turned out to be compact and convenient and is well suited to make repair wiring. The standard instrument kit includes one 9 V battery, two markers, and a protective case. There is a model "Bosch 120" on the market 5000 rubles.
Contactless indicator "Fluk LVD2"
Hidden posting using this indicatorAmerican production is detected quickly. The design of the device has a pencil type. A distinctive feature of this model is a powerful flashlight. Induction in the device is provided double, the level of security is quite high. At the same time, the performance of the device is generally high. The voltage is recognized by the device in the range from 100 to 500 V.
Open wiring for amperage can be checked.Use the indicator at subzero temperature is allowed. The standard set of devices includes AAA batteries. The microcircuit in this model is of the class "DD1" with a contactless probe. In this case, the LEDs are installed series "P1". In total, the case has three inverters with an amplifier. Additionally, it should be noted quality transistors. The length of the antenna in the device is 20 mm. The Tester "Fluk LVD2" will cost the buyer 6000 rubles.
Model "Testboy Ice"
This model is easy to use, andalso durability. In this case, the search for wiring in the wall does not take much time. The display in this device provides a visual, and the selection of the measurement range occurs in automatic mode. The control probe adapter is set to a fairly high quality. It is made entirely of copper and has a thickness of 4 mm.
The protection class in this model is of type "IP65", anddevice disconnects automatically. Illumination of the place of work takes place with the help of a white LED. Ultra low voltage indication system is easily determined, and this is undoubtedly an advantage. In addition to the light and sound signals, the device can be set to vibrate during operation. Testing with Testboy Ice is fairly straightforward, and a single-pole phase check is possible.
Indication from the tester is able to work even withvoltage of 100 V. Transistors in this model are set to bipolar type. The risk of a short circuit in the device is practically absent. Additionally, it should be noted very high quality capacitors in the indicator. They are made entirely of aluminum and have good conductivity. There is an indicator of detection of hidden wiring "Testboy Ice" on the market about 4,000 rubles.
Parameters of the indicator "Testboy Profi"
There is no visual indication in this model.The voltage indicator in the device is bipolar. At the same time it is equipped with a convenient scoreboard with symbols. Also it has a light indication. The case in this model is completely made of plastic. However, he is not afraid of dust and moisture. The indicator on a full charge of batteries can be operated long enough. RCD testing is carried out only with the help of 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 equal to 20 mm. In general, the model "Testboy Profi" turned out to be compact and weighs quite a bit. Power range selection is automatic. Open wiring for amperage can be checked. Adjustment of sensitivity is carried out with the help of the regulator. LED bulb in this model is available. The end adapter is installed with a thickness of 4 mm, and if necessary it can be easily unscrewed. At least 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 "Testboy Profi" fluctuates around 5500 rubles.
What is the difference indicator "Testboy Plus"?
This device belongs to the class bipolar.A distinctive feature of this model are good indicators and a clear scoreboard. Among other things, you can highlight the excellent quality of the device as a whole. Case "Testboy Plus" is made of plastic. Additionally it has a rubber finish.
DC and AC voltage testerdetects in the range from 10 to 400 V. In this case, the search phase in the protective conductor is possible. In total, the manufacturer provides eight LEDs. Dimensions indicator hidden wiring has the following: height - 120 mm, width - 65 mm, and thickness - 25 mm. In general, the shape turned out to be quite interesting, and the tester in the hand is held firmly and does not slip. It costs about 3,300 rubles on the market.
Review of the detector "Wall Pro"
Hidden wall wiring with Wall Prodetected quickly. This indicator has a display, and with its help you can monitor all parameters. For ease of use, the device is equipped with a special toggle switch. With it, you can easily select modes of operation. In addition to wiring in the wall, you can find various plastic and wooden objects. The live network will be visible at a depth of no more than 35 mm. While working on the scanned area there is a bright light beam.
Make an identification center design in the wallcan. However, most other models are able to show only the boundary of the object. When a wiring is detected, a distinct beep sounds for the user. The protection system in this device is IP5 class. At the same time, he is absolutely not afraid of dust. Using the “Wall Pro” on a wet surface is not recommended by the manufacturer. The height of this model is 189 mm, width 80 mm, and thickness exactly 30 mm. When fully charged, the battery can continuously work for five hours. In general, the model manufacturers turned out successful, and is well suited to make repair wiring. The price of "Wall Pro" varies around 4,500 rubles.
Model of the indicator "Vol Control"
Detect wiring this model is capable ofdepth up to 30 mm. The light beam is quite bright. In total, the model has two modes. Protection class - type "IP5", and at the same time the device is not afraid of dust and moisture. When fully charged, the instrument will last about eight hours in working condition.
Of the features can be identified goodtransistors and powerful capacitors. The length of this model is 170 mm, width 75 mm, and thickness 48 mm. In general, it turned out comfortable and practical. The display in the device is illuminated, and it is quite comfortable to use it in an unlit room. Also noteworthy is a good rubberized body. As a result, the device is held securely in the hand and does not slip due to the lining. Among domestic brands, one can definitely dwell on this model. It is worth "Vol Control" to the store about 2200 rubles.
Review of the device "Stanley Pro 20"
Данный индикатор скрытой проводки оснащен fairly large LCD display. A distinctive feature of this model is the rapid detection of cable. Due to powerful transistors, the voltage in the network is shown in seconds. Another noteworthy laser emitter device. It is built 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 distinguishing feature is increased strength.
Thus, the indicator is not afraid of mechanicaldamage and can last for many years. Finding "Stanley Pro 20" metal objects not energized can. Additionally, you can search in the wall of wooden objects. The laser beam is very bright, so marking is done fairly accurately. At the same time there is an opportunity to make its alignment. Batteries are included in the standard indicator kit. In general, they are of high quality and can last for a long time thanks to the auto-off function. The mode of continuous detection of conductors is available.
Among other things, it should be noted powerful soundsignal, which, if necessary, can be turned off. Copper wiring can be searched for at a depth of more than 25 mm. There are special platforms for mounting the device on the working surface on the case. This unit is on the market in the region of 5500 rubles.
Voltage Detector ADA ZC 1000
Данный индикатор скрытой проводки относится к cheap contactless detectors. A distinctive feature of this model is the LED, which glows red. In this case, the sound indication in the ADA ZC 1000 is absent. The device can be used at temperatures from -10 to +40 degrees.
Maximum device able to detect wiringwith a voltage of 200 V. In this case, the average frequency should be at the level of 55 Hz. Surface moisture should be no more than 90%. As a result, this indicator of Chinese production can boast of its simplicity and low cost. ADA ZC 1000 will cost the buyer about 1000 rubles.
Review of the DMF-20 Defort tester
Tester "Defort DMM-20" stands out for itscompactness. There are no protruding parts on the case. In this case, the electrical wiring in the wall is detected very quickly. In general, this device is easy to use, and there is only one mode. With it, you can determine the voltage of the network at a shallow depth.
LED indicators in this devicetwo are provided. The first lamp lights up when the network is at a distance of more than 20 mm. In this case, the second indicator will work only in the immediate vicinity of 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 Defort DMM-200 cable tester weighs 18 kg, and it will cost the buyer 1100 rubles.
