Allow the display to stabilize. The reading should be 0 ppm (±2 ppm).
: If you're unable to find the manual through online searches, you can try contacting Deckma directly or reaching out to a marine equipment supplier and requesting a copy of the manual for the OMD11.
Move the brush vertically up and down carefully to scrub away oil films, rust, or biological scaling.
Meaning : Sample water flow rate is too low or contains air bubbles. Fix : Bleed the air lines and adjust the sample inlet valve. 📈 Calibration and Certification
bilge alarm monitor is a critical piece of safety and environmental compliance equipment found in marine vessels . Designed by Deckma Hamburg GmbH, this unit specifically monitors the oil content in bilge water to ensure compliance with the International Maritime Organization (IMO) regulations, specifically Resolution MEPC.60(33). deckma omd11 manual
Wire this to the ship’s main engine room alarm monitoring system.
Install a valve if the sample pressure exceeds 10 bar. 4. Electrical Connections and Wiring
This is where ignoring the manual leads to catastrophic false alarms or, worse, failure to detect an actual crankcase explosion.
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is designed for use in conjunction with 15 ppm oily-water separator units. It provides continuous monitoring, ensuring that any discharge exceeds 15 ppm results in an alarm and the automatic activation of the overboard valve to stop discharge. Key Features 0-30 ppm.
Understanding the technical boundaries of your Deckma OMD-11 prevents system overloads and hardware damage. Specification 0 to 30 ppm (Trend indication up to 50 ppm) Accuracy According to IMO Resolution MEPC.60(33) or MEPC.107(49) Power Supply 24V AC/DC, 115V AC, or 230V AC (Model dependent) Output Signal 0–20 mA or 4–20 mA for external recording Alarm Relays 2 independent change-over relays (Potential-free) Sample Water Pressure 0.1 bar to 10 bar Sample Flow Rate Optimized between 1 to 2 liters per minute 3. How the Deckma OMD-11 Works
The system features two independent alarm circuits. If the oil concentration breaches the configured set-point (typically 15 ppm), red LEDs illuminate on the front display panel, and the internal relays instantly switch states. DECKMA HAMBURG GmbH - OMD-11
The OMD-11 features a 2-digit, 14-segment LED display that shows the current oil content in ppm. Allow the display to stabilize
In the event of a power failure or system malfunction, all internal relays automatically switch to the alarm condition.
A manual is only useful if the crew can apply it. Create a "One-Page Emergency Card" based on the manual’s Section 11: Emergency Bypass Procedure.
Ultimate Guide to the Deckma OMD-11 Bilge Alarm: Manual, Operation, and Maintenance