What will happen if the PPM exceeds 15 ppm of oil in the water?

If the oil content is less than 15 ppm, the OCM allows the water to be discharged overboard. If the oil content is higher than 15 ppm, the OCM will activate an alarm and move a three-way valve that, within a short period of time, will recirculate the overboard discharge water to a tank on the OWS suction side.

How do you test a 15 ppm alarm in OWS?

OIL ALARM lamp 17 blinks and 15 PPM is displayed. At same time ALARM is raised in Engine Room. Firstly cleaning of water line and detection tube to be done and pure water to be applied. After press button 25 to start washing(A01 is displayed on indicator 14).

How often must the accuracy of a 15 ppm bilge monitor be checked?

five years
The accuracy of 15 ppm bilge alarms is to be checked by calibration and testing of the equipment conducted by a manufacturer or persons authorized by the manufacturer and should be done at intervals not exceeding five years after its commissioning, or within the term specified in the manufacturer’s instructions.

What are the alarms for oily water separator?

A 15ppm Bilge Alarm is normally used in connection to a ship’s oil filtering equipment (also known as “bilge water separator”), monitoring the oil content of the separated/filtered water and stopping the discharge into the sea if the oil content exceeds 15ppm (parts per million).

What is the monitoring and alarms system of OWS?

SkimOIL’s oil water separator (OWS) oil level sensor and alarm system was designed to provide an alarm signal when accumulated oil would reach a predetermined level.

What are the requirement for discharging oily water overboard for cargo vessel?

MARPOL has a regulation under ANNEX I which limits the oil content in the bilge water that vessel can legitimately discharge into the sea. It is now a requirement for all vessels to have an oil discharge monitoring and control system along with an oil filtering equipment known as the Oily Water Separator (OWS).

What is the meaning of 15 ppm?

15 P.P.M means that the rate of oil in a liquid is not more than 15 per million; Sample 1.

How does a oily water separator work?

Oil water separators are designed specifically to target oil based on the gravity difference between oil and water, allowing for heavier solids (sludge) to settle to the bottom while oil rises to the top, leaving additional wastewater in the middle layer.

What is the function of oily water separator?

A device used to separate oil from oily water mixtures and from the emulsion. Bilge separators are necessary aboard vessels to prevent discharge of oil overboard while pumping out bilges or while cleaning oil tanks.