| Issue | Possible Cause | Troubleshooting Steps | | :--- | :--- | :--- | | | Dirty measuring cell | 1. Perform a thorough cleaning of the glass measuring cell. 2. After cleaning, if still not zero, perform a zero adjustment procedure per the manual. | | Frequent false alarms | Solid particles interfering with reading or dirty cell | 1. Verify the sample water source quality. 2. Clean the measuring cell. 3. Check if the alarm settings are too sensitive. | | Consistently high or erratic readings | Dirty measuring cell, sample flow issues, or need for calibration | 1. Clean the measuring cell. 2. Check sample water flow and connections for blockages. 3. Perform a calibration check using the 100-FTU solution. | | Unit goes into alarm state frequently | Contamination, calibration drift, or system problem | 1. Flush the cell with clean water. 2. If problem persists, consult the full troubleshooting section of the manual. | | Alarm does not trigger at 15 ppm | Incorrect alarm setpoint, malfunctioning sensor, or calibration needed | 1. Verify and adjust the alarm setpoints. 2. Perform a calibration check with the 100-FTU solution. 3. Professional calibration might be required. |
The internal processor compares light attenuation against clean water baselines.
recommends using a dedicated cell cleaning brush and keeping spare desiccators and O-rings on hand. Calibration Check
2 independent circuits; potential-free 1-pole changeover (3A / 24V) 15 ppm (Adjustable on-site from 2 to 15 ppm) Output Signal
The is not merely an instruction booklet; it is a class-approved safety document. During a PSC (Port State Control) inspection, the inspector will check that the manual is present, that the logbook entries match the manual’s test procedures, and that the crew knows how to navigate the menu without the book. deckma omd11 manual
Alarm 1 and 2 operating delays are adjustable, with a default setting of 10 seconds.
The OMD-11 requires a 24V AC/DC power supply. Wiring must be performed by qualified personnel according to the manual's diagram.
Mount the OMD-11 as close to the oily water separator as possible, typically within 8 meters.
What is the you are experiencing? What is the current color of your desiccator gel ? Are you prepping for an upcoming shipboard inspection ? | Issue | Possible Cause | Troubleshooting Steps
| Feature | Specification | | :--- | :--- | | | Scattered light method (optoelectronic) | | Range | 0-30 ppm (trend indication to 50 ppm) | | Accuracy | Meets IMO MEPC.60 (33) | | Alarm Operating Points | Two alarms, 2-15 ppm adjustable (Factory set: Alarm 1: ~10-12 ppm, Alarm 2: 15 ppm) | | Alarm Operating Delay | 2-20 seconds, adjustable | | Output Signal | 0 (4) - 20 mA, selectable | | Sample Temperature | +1° to 60° C | | Power Supply | 24 Volt AC/DC (other voltages on request) | | Degree of Protection | IP 65 | | Dimensions (W x H x D) | 175 x 190 x 220 mm | | Weight | 3.5 kg |
Indicates insufficient water flow through the measuring cell. Check for blocked sample lines or closed valves.
The printed manual lacks decision trees. Technicians often create their own to diagnose flow blockages or sensor drift.
In this article, we'll provide you with an in-depth look at the Deckma OMD11 manual, covering its importance, key components, operating instructions, maintenance guidelines, and troubleshooting tips. Whether you're a seasoned professional or new to oil-water separators, this guide will equip you with the knowledge you need to get the most out of your Deckma OMD11. After cleaning, if still not zero, perform a
Shipboard crews should check the zero-point stability and internal relay functionality routinely.
While it describes the light-scattering principle briefly, advanced users sometimes want more detail on how temperature, pressure, or oil type affects readings.
is a vital piece of marine safety and environmental equipment engineered by Deckma Hamburg GmbH . Designed specifically for use with 15 ppm (parts per million) Oily Water Separator (OWS) units, the OMD-11 ensures compliance with strict international maritime pollution regulations. It measures the concentration of oil in bilge water discharge, preventing accidental pollution by triggering alarms and stopping overboard discharge if legal limits are exceeded.