English Views: 120 Author: DEYUAN 041 Publish Time: 2026-06-08 Origin: Site
As the International Maritime Organization (IMO) continues to raise the bar for marine environmental protection, bilge water discharge monitoring has become a critical component of vessel pollution prevention. DEYUAN MARINE, a professional marine equipment supplier, offers good quality 15ppm Bilge Alarm , OCM-15 is one of them.
Product Overview
The OCM-15 15ppm Bilge Alarm is designed and manufactured in strict compliance with IMO Resolution MEPC.107(49). It is specifically developed for continuous online monitoring of bilge water discharge when used in conjunction with a 15ppm oily water separator.
When the oil content of the discharged water exceeds 15ppm, the device automatically triggers an alarm and controls a 3-way valve to recirculate the over-limit water back to the bilge tank, ensuring that overboard discharge always remains within regulatory limits.
The device is also suitable for boiler condensate monitoring, chemical plants, metallurgy, oil refineries, and water treatment applications.
Key Technical Specifications
Parameter | Value |
Measuring Range | 0-30ppm (display up to 80ppm) |
Accuracy (at 15ppm alarm) | ±5ppm (meets IMO standard) |
Response Time | ≤5 seconds |
Alarm Set Point | 1-15ppm adjustable (factory set at 15ppm) |
Alarm Outputs | 2 independent alarm relays |
Relay Contact Rating | 250VAC 3A |
Output Signal | 4-20mA (0-30ppm) |
Key Features
1. High-Precision Infrared Measurement Technology
Utilises near-infrared measurement technology, which overcomes measurement errors caused by colour and density variations due to suspended particles in the water sample, ensuring high accuracy.
2. Dual Alarm & Over-limit Control
Equipped with 2 independently adjustable alarm relays:
●Alarm 1: Delay adjustable 1-540 seconds – for indication
●Alarm 2: Delay adjustable 1-10 seconds – for 3-way valve control to recirculate over-limit water
3. Data Logging & Storage
Built-in data logging function stores alarm status and operational data for at least 18 months, supporting historical data queries – essential for PSC and FSC inspections.
4. Operational Status Monitoring
When the equipment is in power-off, preheating, fault, maintenance, cleaning or replacement mode, it automatically prevents discharge of over-limit water – ensuring no discharge under any circumstances.
Applications
Application | Description |
Bilge Water Discharge Monitoring | Used with 15ppm oily water separators |
Boiler Condensate Monitoring | Detects oil content in boiler condensate |
Chemical & Oil Industries | Industrial wastewater oil monitoring |
Water Treatment & Environmental Protection | Oil-in-water measurement and monitoring |
