The Logytel AC 01 auscultator belongs to the family of auscultators that allow measuring the geometry of the catenary wire. Its main function is to therefore measure the height and offset of the catenary wire with respect to the centre-line of the track.

The product allows measuring or identifying other, physical and geometric auxiliary parameters: rocking, core crush, lateral correction, the identification of curves, the identification of posts or other lateral objects, and the identification of the kilometre markers where it is located. In addition, this product is designed with an event button and an input for connecting the tachometer of the vehicle.

Positioning potentiometer sensors are used for measuring the height. For measuring the offset, the position of the wire is detected using inductive proximity sensors. Both the height measurement and the offset measurement are obtained by applying, in real time, all corrections for the primary and secondary suspensions of the vehicle, as well as for the movement of the frame or fixed structure of the vehicle with respect to the wheels.

The auscultation takes place with the catenary line under power and up to a maximum speed of 120 km/h, whereby the product can be installed on any vehicle that has a pantograph, and it is valid for any track width and use: AVE (Spanish High Speed Train), Conventional High Speed, and Low and Medium Density Traffic Lines.

A computer application generates a log of alarms that occur during the auscultation, thereby indicating the kind of alarm and the exact place where the same occurred.

From a regulatory point of view, the product complies with all applicable CENELEC regulations and regulations for railway materials. The product does not require maintenance of any kind, although verification of the sensory system using master devices is recommended once per year.