Specifications

-2.3-
2.3 REPLACING ACOUSTIC BEACON
The underwater acoustic beacon has a built-in battery with approx 6 year lifetime. The
beacon must be replaced with new one (type: DK-120, P/No. 000-148-648) by a qualified
service engineer before validity date marked on the beacon.
Necessary tool: M5 Allen wrench
Use M5 Allen wrench to loosen bolts.
Fig.2.2 Underwater Acoustic Beacon on DRU
Caution
As the acoustic beacon contains a battery, it must be
disposed in accordance with the local regulation.
Validity is
marked here.
Underwater
acoustic beacon
(VR-5021)