The display shows “OMD – Error nnnn!”
with nnnn: error code (refer to the following table)
| Error code | Error description | Help |
| 0001 | No sensor detected | • Check cables • Is the number of sensors set up correctly? |
| 0002 | Date and time invalid in real-time clock | • Set date and time • If the error occurs again, replace Evaluator |
| 0004 | Failure in event memory | Read out memory and reinitialise the Evaluator |
If multiple errors are detected, the error code is calculated as the hexadecimal sum of individual error codes.