Na tej stronie dowiesz się:

The metrometer does not count the road.

When you use sensors.

Introduced extremely incorrect calibration which causes the metrometer to count many times too little distance.

Enter the correct calibration. You can calculate it by knowing how the speed sensors are mounted.

Inappropriate type of speed sensors.

All iTrip metrometers work correctly with sensors with NPN output. The metrometer pulls the signal up to + and expects the sensor to give ground when the pulse is passed.

The working range of the sensor outside the working range of the metrometer input.

The main speed signal input of the metrometer switches when the signal passes the 2.5V level. The hysteresis is +/- 1V.
The signal must go below 1.5V and the inputs above 3.5V.

Auxiliary speed signal input switches without reference to the voltage level. It is required that the signal amplitude is more than 1V. Auxiliary inputs are marked with a striped wire.

The metrometer does not count the road.

When you use sensors.

When you use GPS.

The metrometer does not display any values.