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Bilge alarm · Tank gauging · Float switches
Bilge / Level Sensor / Alarm
Bilge alarms, high-level cargo hold sensors, tank radar gauging, float switches, oily-water separator OCM 15 ppm.
Service available at all US ports — 24/7 worldwide. Our next available technician contacts you within 1 hour.
Symptom checklist
What we hear from the bridge.
- ›Bilge alarm chatter in heavy weather
- ›Tank radar reads 0% on full tank (Hawk, Emerson)
- ›OCM 15 ppm sensor reads high after bunker
- ›Float switch stuck on after cargo cleaning
- ›Marpol Annex I overboard valve interlock fails
Likely root causes
Where the fault usually lives.
- ›Fouled OCM sensor cell
- ›Radar dome condensation
- ›Magnet weakening on float switch reed
- ›PT100 transmitter calibration drift
Equipment we bring
Calibrated test equipment, class-acceptable reports.
- Druck DPI 620 calibrator
- Emerson 475 HART communicator
- OCM calibration test fluid
Reports compatible with DNV · BV · ABS · Lloyd's · TL · RINA · ClassNK · IRS.
Often needed together
Parts most often requested with this service.
- level sensors
- float switches
- ocm cells
FAQ
Common questions for this system.
- Which level and bilge sensor makes do you service?
- We attend Hawk Centurion guided-wave and Gladiator pulse radar gauges, Emerson Rosemount 5300/5408 GWR and 3051 differential pressure for tank gauging, KSR Kuebler magnetic float chambers, standard reed-type bilge floats and Deckma OMD-2008/OMD-32 oily-water 15 ppm monitors. We re-zero, span and bench-check sensors with a Druck DPI 620 and verify the OCM with a Marpol Annex I compliant test cell and certified bilge water sample.
- What is the typical attendance time for a bilge alarm or OCM problem?
- Single bilge float or one tank-gauge channel: two to three hours alongside. Full E/R bilge well loop check (forward/aft, ER, ER aft, shaft tunnel) with PLC logic verification: six to eight hours. OCM 15 ppm overhaul including bench cell, optical window cleaning, zero/span on certified emulsion and three-way valve recirculation test: four to five hours. We carry spare Deckma cells and the Druck calibrator to avoid a second trip.
- Will the bilge / OCM report be accepted for the MARPOL Annex I survey?
- Yes. Reports are issued in DNV, BV, ABS, Lloyd's Register, ClassNK, RINA, TL and IRS formats with the IOPP Certificate Form B item references. We attach Druck DPI 620 calibration cert, OCM cell certificate, the certified test emulsion lot number, three-way valve actuation log and a print of the resulting ORB Code C entry. If a USCG Subchapter D Port State officer attends, we hand them the same document pack on request.
Have a vessel calling?
Three quick questions — port, when, contact. Our next available technician will contact you within 1 hour.