The calibration value returned is diagnostic information, which we interpret according to the table:
| Calibration value | Description | 
| -3 to +3 | OK – POWERCRANK SINGLE | 
| 1010 | OK – POWERCRANK TWIN2 | 
| 25 | ERROR – zła pozycja korby | 
| 50 | ERROR – słaba bateria | 
| 75 | ERROR – uszkodzenie czujnika |