There are 3 alarm relays integrated in the SiCOMS® Evaluator:
- 1st Alarm relay: always assigned to main alarm, aditionally programmable as pre alarm or temperature main or pre alarm
- 2nd Alarm relay: programmable as main alarm or pre alarm or both and/or temperature main or pre alarm
- 1 Ready relay: indicates the system status
The SiCOMS® has a self check procedure which is carried out in a certain cycle. If any one of the conditions for the System Ready status is not detected the SiCOMS® Evaluator switches off the green READY LED and the ready relay drops out. An error code and a text error message are shown on the LCD of the Evaluator and also in the event window of OMD Logger on the optional monitoring PC.
SiCOMS® enables to set different alarm sensitivity levels by defining different oil mist concentration thresholds as alarm condition. Oil mist concentration alarm levels are encoded as numbers from 1 to 10 (the higher the number is the less sensitive is the system). Please also refer to the table below.
The temperature alarm level is given in degree Celsius.
| Sensitivity level | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Sensitivity mg/l | 0.2 | 0.3 | 0.5 | 0.7 | 1.0 | 1.5 | 2.5 | 4.0 | 7.0 | 10.0 |
Alarm sensitivity levels must be set at the SiCOMS® Evaluator. If alarm conditions are fulfilled, the firmware of the SiCOMS® Evaluator triggers the corresponding alarm.
In case of an alarm triggering, it is shown
- by the LED indicators on the SiCOMS® Evaluator
- by the optional SiCOMS® / OCom Logger software on the monitoring PC
- by alarm indicators of the engine alarm devices, depending on wiring