Bosch GMS 120 concealed wiring detector: description, characteristics, instruction

In the process of performing construction work, it is often difficult to detect safe, in terms of drilling, areas in walls and partitions. The presence in the wall niche of a laid cable or a wooden structure becomes an obstacle for performing assembly operations. Moreover, a wiring violation entails problems of a different kind, among which we can distinguish the need to dismantle the structure in order to update the route. The special detectors, and in particular the Bosch GMS 120 Professional, designed for a wide range of applications, help to eliminate the risk of damage to internal communications.

General information about the model

The device is included in the general group of measuring equipment, which is used in the construction industry. The case of the device is designed for operation in harsh conditions, as evidenced by the presence of strong plastic in the construction and protective coatings. The main advantages of the model are disclosed by the technical stuffing, thanks to which the user can detect the presence of a wiring made of different metals. In addition, the German wiring detector is able to detect and wood materials that are inside a closed structure.

Interaction of the device with the operator is carried out through an ergonomic interface with a digital screen and modern controls. In normal mode, the device's indicator lights up in green, and when the target object is detected, the red light is activated. However, the help of the Bosch GMS 120 detector is not limited to this. Since the research activities are carried out for the subsequent marking of the zone in which the installation operations can be performed, the developers of the device have provided special devices for the convenient marking of such areas.

Features of the detector

Since the model belongs to the category of professional tools, it is distinguished by many functional and structural nuances. First of all, this is a well thought-out ergonomics of the control system. In addition to the light indication, the metal detector also uses an acoustic signal to notify the user of the search results. Another feature of the Bosch GMS 120 is the wide range of materials it detects. In addition to metal and wood, the detector scans the structures for the content of magnetic and non-magnetic objects in them. In large-scale research, equipment can be used for a long time. For such cases, the creators provided for a long-term battery charge, providing a 5-hour continuous operation of the device.

Specifications

Despite the fact that the detector is positioned as a professional apparatus, it can also be used by a home master for domestic purposes. Small size and convenience in the settings remove restrictions on its use. As far as it will be appropriate to purchase the Bosch GMS 120 for specific needs, it will help determine its technical performance:

• Depth of detection - from 38 to 120 mm, depending on the material.
• Automatic shutdown - provided after a 5-minute downtime.
• Duration of work - 5 hours.
• Battery - 1 x 9 V.
• The range of temperatures favorable for operation is from -10 to +50 ° C.
• Weight of the device is 270 g.

It should be noted that the characteristics of the detection of materials by depth can also vary depending on the parameters of the object itself, the properties of the design and the external conditions. For example, if the electrical cable is not at the time of the stress test, the scan depth can be lowered.

Operating modes Bosch GMS 120

The device provides three basic operating modes - "drywall", "metal" and "conductive cable".

The first mode allows you to search for several types of building material, including wood and metal. It does not matter whether the object is magnetic or not. This mode is used for working with gypsum board panels, that is, the device overcomes them during operation.

By adjusting the wiring detector to the "metal" mode, the user can purposefully search for magnetic and non-magnetic objects in walls made of any material. When an object is detected, the display of the instrument displays the corresponding symbol.

Perhaps the most important research of this kind is to search for conductive cables. For similar tasks, the developers of the device have provided a special mode with the appropriate name. The detector allows you to detect wiring with voltage from 110 to 230 V. When operating the device in this mode, it is recommended to conduct studies in series - several sessions will help to more accurately determine the location of the wiring.

User's manual

During the use of the device it is important to take into account that the surrounding conditions can affect its effectiveness. For example, the humidity, the proximity of other equipment, which emits strong magnetic fields, building materials with metal content, insulators with aluminum elements and other factors can disrupt the functioning of the detector. If the place of work is saved from such influences, then it is possible to start research.

Actually, the result of the search should be two results - the fixation on the display of the symbol with the marking of the detected material, as well as the determination of the boundaries free of the target object.

So, if the search for hidden wiring has been successful, then through a special hole in the device the user can mark the section of the communication path.

Maintenance Instructions

Like any measuring device, the detector needs careful maintenance and application of special maintenance measures. Only in this case the optimum accuracy will be maintained. Each time before use, it is necessary to check the condition of the device, detecting external damage and unreliable parts of the connection of the structural parts. Also the tool should always be kept clean and dry, as its filling is sensitive to moisture, and to temperature fluctuations. After performing the work operations, you should arm yourself with a dry cloth with soft fibers - it will help delicately clean the Bosch GMS 120 body. The instruction also recommends that you take care of the surface of the sensory area as carefully as possible because of its accuracy.

Calibration of the detector

It happens that during the scanning process the device indicates the presence of metal objects, which in fact are not present. You can check false signals on visible objects and if violations are confirmed, you will have to calibrate the device. This operation is performed by pressing two buttons - "5" and "7". At the time of pressing, the Bosch GMS 120 detector must be disconnected, and in the radius of its action there should be no objects to which it could trigger. A successful start of the calibration will be indicated by the automatic start of the device.

Feedback on the device

The device as a whole causes positive impressions. Especially the functions of determining metal objects and wiring are practically uncritical. The same applies to the implementation of the control system - the digital interface is convenient in both professional use and in solving household tasks.

However, there are complaints about the cover for the Bosch GMS 120. Reviews note that due to the special shape of the device, it would be more appropriate to make a hanging device with a strap for it. And one more disadvantage of the device, which can be called universally recognized, is the price tag - the model is available in the domestic market on average for 5-6 thousand rubles.

Conclusion

Accurate and easy-to-use measuring devices not only facilitate the repair and construction operations, but also eliminate the risk of making mistakes. For example, the search for hidden wiring with subsequent identification of the location of the communication path makes it possible to quickly and without much effort to perform a correct marking of free areas for stonecutting in the wall.

Of course, for one-off events when installing equipment in the home, buying a device of this level may be unnecessary, but in regular work with walls, partitions and other closed structures, this device is simply indispensable. In addition to high accuracy, the detector from Bosch is also versatile in terms of the ability to work with different materials and ergonomics, which is important for a modern instrument.