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DEVICE FOR SECURING ELECTRONICS COMPONENTS ZN-12

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Device for securing electronic components ZN-12

Modern cars are equipped with many electronically-controlled devices. The latest generation components used in them are small and reliable but they do have one very inconvenient for the automotive industry feature, namely they are highly vulnerable to damage. The damage mainly concerns electrical equipment and results from the improper or careless handling of the car. Therefore, while handling the cars equipped with electronic systems, it is necessary to comply with the manufacturers’ recommendations and to follow the basic rules for handling electronic devices. These principles are not commonly known and followed while servicing cars in our country. As a result, it leads to many cases of accidental and very costly damage to electronic systems. Such damage often occurs in the least expected circumstances, e.g. during the garage work or even during everyday activities related to the operation of the vehicle.

Most often the electronic equipment is damaged due to:

  • the application of inappropriate rectifiers and starting equipment,
  • connecting another battery to start the engine,
  • turning the ignition system without spark plugs on high-voltage cables as well as due to removing these cables from the plugs during the engine operation,
  • welding and sealing the vehicle body by means of electric welding machines
  • the use of electrical equipment powered by the 220 or 380 V voltage within a short distance from the vehicle,
  • getting it wet with water, which may take place during the improper cleaning of the engine compartment.

These are obviously only some of the defect causes, which should be avoided. However, there may be yet other quite different circumstances adversely affecting the car's electronics. Quite an interesting case is the damage to electronic systems caused by a strike of lightening within a short distance from the place where the car is parked.

To reduce the risk of damage to the car electronics, it is recommended to use a special device for securing electronic components, which is produced by DeltaTech Electronics labelled as ZN-12 (for cars with the 12 V installations). This security device actively and effectively eliminates the harmful effects in the power electronic circuits. It is enough to fasten the clamp device (alligator clips) on the battery terminal clamps and to maintain the appropriate polarity, e.g. attach the red clamp to the positive post (+) and the black clamp to the negative post (-). Now the device is ready to watch over the safety of the vehicle electronic systems. The ZN-12 securing device has three control lamps, which provide information on the current progress of work. The steady green light indicates that the device is properly connected and protects the vehicle electronics. The steady red light (together with the green one) indicates that the device still protects the electronics, but the supply voltage exceeds 16 V and it is necessary to disconnect the power source as soon as possible (most often a rectifier or starting device). When the yellow lamp is on, it means that the working limits have been exceeded drastically and the fuse works. To avoid damage to car equipment and electronics, it is necessary to disconnect immediately the source of the voltage, which is too high. If the yellow lamp is on even at the moment the device is connected to the 12 - 16 V voltage, it means that the ZN-12 security device has been destroyed as a result of drastic exceeding of the working limits.

The ZN-12V device maximally reduces the risk of damage to electronic systems. However, although it is applied, some unforeseen factors causing damage may occur. That is why it is necessary to follow safe practices while handling it.


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Cost of delivery depends on the supplier and the country of destination.

Have a look at the system for regulating fuel injection pumps - VPX-3.


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