During DG operation, the “Speed ββand Position Sensor 3 Malfunction” alarm was triggered several times in both the IAS and HIMSEN PC.
After checking, the crew confirmed:
π’ All SE123 sensor cables were connected correctly.
π’ The air gap was within specifications (1.5β2.0 mm).
π’ The sensor is still faulty.
Actions taken:
The faulty sensor [JAQUET DSF1210.01A1HV] was replaced with a new one, which restored normal operation without further alarms.
Even properly installed sensors can fail under the influence of marine vibrations and thermal cycles.
π‘However, the Koreans replaced the entire LECM module and gas supply valves to solve this problem of speed and position sensor failures.
Author: @iPr1nce
Seamen’s Club πΊπ¦ | PRO_LNG | #education