D-WHEEL measures the rail wheel diameter via 3-point chord measuring method by means of the sensor put on the midpoint between 2-2 fix points. Thanks to the prepared two measuring bases with different distances D-WHEEL has wide wheel diameter measuring range – with adequate accuracy. D-WHEEL can be placed on the plain surface of the back of the rail wheel by two arms where the magnets of the gauge provide the necessary pressing force. These arms give the measuring reference distance from the back of the rail wheel.

The measuring reference distance can be customized upon demand. The arms can be moved to the other side of the gauge as well. This way the use of the gauge can optimized regarding the read-out-ability of the screen in case the rail wheel is required to be measured from the back of the wheel (e.g. from inspection pit) or from front-wise.