| Error Code | Error Description | Description | Action |
| 21 | Reference target | Reference target statistics error, variation too high | Check alignment of target / Return for Repair |
| 22 | Reference target | Reference target averaged value distance measurement too high | Check alignment of target / Return for Repair |
| 23 | Reference target | Reference target - echo amplitude too small | Check alignment of target / Return for Repair |
| 24 | Reference target | Reference target - echo amplitude too high | Check alignment of target / Return for Repair |
| 25 | Reference target | Reference target- values occasionaly out of range | Check for contamination / check alignment of target / Return for Repair |
| 26 | Reference target | Internal laser power measurement occasional out of limits | Check reference target / Return for Repair |
| 27 | Reference target | Internal laser power measurement too small | Check contamination / check alignment of target / Return for Repair |
| 28 | Reference target | Internal laser power measurement too large | Check ailgnment of target / Return for Repair |
| 2A | Reference target | Reference target: distance too high | Check alignment / return for Repair |
| 2B | Reference target | Reference target- echo amplitude too high | Check alignment / return for Repair |
| 2C | Reference target | Reference target- distance too small | Check alignment / return for Repair |
| 2D | Reference target | Reference target- echo amplitude too low | Check alignment / return for Repair |
| 2F | Reference target | In Eeprom memorized reference target data defect | Return for repair |
| 31 | Trigger | Rotating frequency too high | Return for repair |
| 32 | Trigger | Rotating frequency too low | Check whether head is blocked / Return for Repair |
| 33 | Trigger | Internal trigger signal missing | Return for repair |
| 34 | Trigger | Internal trigger signal faulty | Return for repair |
| 35 | Trigger | Internal synchronisation channel 1/2 not OK | Return for repair |
| 41 | Comparison | Fault in comparison channel 1/2 in distance or echo amplitude | Return for repair |
| 51 | Relay | Fault in relay monitoring | Return for repair |
| 61 | System | Fault on self testing of CPU command | Return for repair |
| 62 | System | Fault on self test RAM | Return for repair |
| 63 | System | Fault on self test ROM | Return for repair |
| 64 | System | Data error in internal Eeprom data | Return for repair |
| 65 | System | Data error in Eeprom about Alarm or info parameters (User) | Return for repair |
| 66 | System | Data error in Eeprom about Safe or Setup parameters (User) | Return for repair |
| 67 | System | Data error in Eeprom in zone memory Return for repair | Return for repair |
| 68 | System | Fault runtime, unexpected interrupt | Return for repair |
| 69 | System | Fault runtime: fault in self testing sequence | Return for repair |
| 70 | Setup | Last zone programming was unexpectedly broken off | Reprogam the unit / Return for repair |
Enter example here
