Omd11 Manual — Deckma

The OMD-11 requires regular cleaning to prevent fouling of the optical lenses.

Here’s a forum-style post you could use for a maritime or engineering community (e.g., on Reddit’s r/maritime, r/engineers, or a marine tech forum):

Title: Looking for Deckma OMD-11 Manual – Bilge Alarm Calibration Help

Body:
Hey everyone,

I’m currently working with a Deckma OMD-11 oil content monitor (bilge alarm) and need the original manual (preferably the installation/calibration/maintenance section). We’re having intermittent issues with the 15 ppm alarm threshold drifting during warm-up.

I’ve found a few basic operation sheets online, but nothing with the full service parameters, zeroing procedure, or part numbers for the cleaning kit.

Does anyone have a PDF copy of the official Deckma Hamburg OMD-11 manual they could share? Alternatively, if you know the specific steps for a manual zero calibration after cleaning the measuring cell, that would be a lifesaver.

Cheers in advance.

(For reference: unit is installed on a 2017-built bulk carrier, software version 2.1. We’re MEPC 107(49) compliant, but just doing regular maintenance.)

Deckma OMD-11 is a legacy bilge alarm unit designed to monitor oil-in-water concentrations in marine environments, specifically to ensure compliance with IMO Resolution MEPC.60(33) standards. Core Function & Features

The OMD-11 uses a light-scattering measurement principle to detect oil droplets in a sample stream. Key technical highlights from the Solids Suppression

: Designed to minimize false readings caused by non-oil contaminants like iron oxide, showing only 2 ppm for substances that older monitors might misread as 15 ppm. Dual Alarms

: Features two independent alarm circuits factory-set to 15 ppm, though they are field-adjustable between 2 and 15 ppm via front-panel buttons. Output Signals

: Provides a 0(4)–20 mA signal for external recording or remote metering. Compact Build

: The unit is IP 65 rated for protection against water jets and dust, measuring approximately Technical Specifications Specification Measurement Range 0 – 30 ppm (Trend indication up to 50 ppm) plus or minus 5 ppm around the 15 ppm threshold per IMO standards Power Supply 24V AC/DC (standard); other voltages available on request Sample Temperature Operates between positive 1 raised to the composed with power 60 raised to the composed with power Response Time Adjustable alarm delays between 2 and 20 seconds Operational Guidelines Installation

: The unit should be mounted near the oily-water separator to minimize lag time. It requires a clean water source for flushing and mm OD piping for sample connections. Maintenance : Regular cleaning of the measuring cell is critical. The instruction manual

recommends using a dedicated cell cleaning brush and keeping spare desiccators and O-rings on hand. Calibration Check

: Proper function is verified using a Formazin polymer reference standard (typically 4000 FTU diluted to specific requirements) to ensure the monitor remains within the required accuracy limits. Shivtech Marine Control Systems & Services calibration kit contents INSTRUCTION MANUAL DECKMA HAMBURG Gmbh - YUMPU

The Deckma OMD-11 is a legacy bilge alarm monitor designed to measure the oil content in water discharge on ships. Developed by Deckma Hamburg GmbH, it was engineered to meet IMO Resolution MEPC. 60 (33) standards, ensuring that oily water is not illegally discharged into the ocean. Key Technical Specifications

The OMD-11 is known for its compact design and improved "solids suppression," which prevents non-oil particles (like iron oxide) from triggering false alarms.

Measuring Range: 0–30 ppm (with a trend indication up to 50 ppm). Accuracy: Better than ±5plus or minus 5 ppm according to IMO requirements. Power Supply: Standard 24V AC/DC.

Alarms: Two independent alarm circuits, factory-set at 15 ppm but adjustable between 2–15 ppm. Output Signal: Reversible 0–20 mA or 4–20 mA.

Physical Specs: Weighs approximately 3.5 kg with an IP 65 protection rating. Installation & Operational Essentials

Proper installation is critical for regulatory compliance and accurate measurement.

Proximity: The monitor must be located as close to the oily water separator as possible.

Distance Limit: Under no circumstances should the distance between the monitor and separator exceed 8 meters; a greater distance causes a response delay of more than 20 seconds, breaching IMO regulations.

Mounting: It should be mounted on a rigid vertical surface, ideally at eye level for easy monitoring. Maintenance & Troubleshooting

The OMD-11 manual outlines specific weekly maintenance to ensure longevity and accuracy: Weekly Flush: Flush the measuring cell with oil-free water.

Cell Cleaning: Use a specialized bottle brush to clean the sample cell tube manually to prevent buildup.

Zero Adjustment: Verify the "Zero" reading using clean water; if the display does not show "0", re-adjust the offset in programming mode.

Calibration: Official calibration cannot be done on-board by crew. It must be performed by the manufacturer or an authorized service provider like Mackay Marine to meet IMO mandates. Diagnostic LED Indicators

The front panel features four main LED indicators for rapid status checks: OMD-11 Oil-in-Water Monitor Manual | PDF | Relay - Scribd

A proper "story" or operational overview for the Deckma OMD-11 Bilge Alarm Monitor Go to product viewer dialog for this item.

involves understanding its role as a critical environmental guardian on ships. Developed by DECKMA HAMBURG GmbH, it ensures that oily water is not illegally discharged into the ocean. The Core Narrative: How it Works

functions as an automated sentinel, continuously analyzing water samples from the ship’s oily water separator. deckma omd11 manual

Detection: It uses a scattered light measuring method. A light beam passes through the sample stream; oil droplets scatter this light, which is then captured by optical sensors. Analysis : Unlike older models, the

features advanced solids suppression. It can distinguish between actual oil and harmless particles like rust or sand, preventing "false alarms" that would halt operations unnecessarily.

Action: If the oil concentration exceeds the 15 ppm (parts per million) legal limit set by IMO regulations, the monitor triggers an alarm. It typically activates a relay to automatically close the overboard discharge valve, redirecting polluted water back to a holding tank. Key Installation & Maintenance Rules

To ensure the "story" ends with a compliant inspection, certain manual-specific rules must be followed: OMD-11 Oil-in-Water Monitor Manual | PDF | Relay - Scribd

Deckma Hamburg OMD-11 is an older oil-in-water monitoring unit designed for use with 15 ppm oily water separator systems. While no longer in active production, it remains fully supported for maintenance and calibration. Shivtech Marine Control Systems & Services Official Manuals & Resources Complete Instruction Manual (Scribd): A detailed OMD-11 Instruction Manual

is available, covering installation, wiring, and technical specifications. Operational Guide (Yumpu): An interactive Instruction Manual

provides details on the 15 ppm alarm settings and IMO resolution compliance. Technical Datasheet: A technical overview and parts list can be found at Mackay Marine Key Technical Specifications Measurement Range 0 – 30 ppm (Trend indication up to 50 ppm) Meets IMO Resolution MEPC.60 (33) requirements Alarm Points

2 independent alarms, factory set at 15 ppm (Adjustable 2–15 ppm) Power Supply 24V AC/DC (Standard) Output Signal 0(4) – 20 mA selectable Protection Class Operating & Maintenance Tips Calibration:

IMO regulations require periodic calibration checks. You can contact certified providers like Mackay Marine for on-site service or exchange units. Installation:

The unit should be mounted on a rigid vertical surface, ideally at eye level, close to the oily water separator to minimize response delays.

The Deckma OMD-11 Bilge Alarm Monitor Go to product viewer dialog for this item.

is a light-scattering oil-in-water monitor designed to meet IMO MEPC.60(33) regulations for 15 ppm oily water separators. Key Technical Specifications

Measurement Range: 0–30 ppm (Trend indication up to 50 ppm). Accuracy: Better than ±5 ppm (within IMO requirements). Power Supply: 24V AC/DC ±15% (5 VA consumption).

Alarms: Two independent circuits factory-set at 15 ppm (adjustable between 2–15 ppm). Response Time: Adjustable between 2–20 seconds. Output Signal: 0(4) – 20 mA for external recording. Installation Guidelines

Location: Mount the unit on a rigid vertical surface using 4 x M5 screws.

Distance: It must be placed as close as possible to the oily water separator. The distance must never exceed 8 meters to ensure a response time under 20 seconds, as required by IMO regulations.

Positioning: Ideally, the display panel should be at eye level with sufficient clearance on all sides for maintenance. Operation & Maintenance

Principle: The unit uses several optical sensors to measure a combination of scattered and absorbed light to determine oil concentration.

Functional Testing: To check the unit, run oil-free water through the system to purge it and ensure the reading drops to zero.

Calibration: While the OMD-11 is an older model, it is still supported. Calibration must be performed by certified providers like Mackay Marine to meet IMO requirements.

Component Repair: Replacing electronic components (except fuses) typically requires re-calibration to avoid inaccurate readings. Troubleshooting Indicators

LED Indicators: The front panel includes "Alarm 1," "Alarm 2," and "Error/Fault" LEDs.

System Fault: In the event of a power failure or system malfunction, all internal relays automatically switch to the alarm condition.

For further detailed instructions, you can access full digital versions via the OMD-11 Instruction Manual on Scribd or the OMD-11 Guide on Scribd.

If you tell me what you're currently working on, I can provide more specific help: Wiring diagrams for the terminal blocks Steps for programming the alarm set points Detailed cleaning procedures for the measuring cell OMD-11 Oil-in-Water Monitor Manual | PDF | Relay - Scribd

The Deckma OMD-11 is an oil-in-water monitor primarily used as a 15 ppm bilge alarm on maritime vessels. While it is an older model replaced by newer versions like the OMD-24, it remains widely supported for servicing and calibration. Key Specifications

Operating Range: 0–30 ppm (with a trend indication up to 50 ppm).

Accuracy: Complies with IMO Resolution MEPC. 60 (33) requirements.

Power Supply: 24V AC/DC (standard), with others available on request.

Alarms: Two independent alarm circuits, factory-set at 15 ppm but adjustable between 2–15 ppm.

Response Time: Adjustable operating delay between 2 and 20 seconds. Operating Principle OMD-11 Oil-in-Water Monitor Manual | PDF | Relay - Scribd

Introduction

The Deckma OMD11 is a marine oil separator system designed for the efficient separation of oil and water on board ships. As a critical component of a vessel's bilge water treatment system, it plays a vital role in preventing marine pollution and ensuring compliance with international environmental regulations. The Deckma OMD11 manual is a comprehensive guide that provides detailed information on the installation, operation, and maintenance of this system.

Overview of the Deckma OMD11 System

The Deckma OMD11 is a high-performance oil separator system that utilizes advanced technology to separate oil and water. The system consists of a series of components, including a separator unit, a control unit, and a monitoring system. The separator unit uses a combination of gravity and coalescence to separate oil and water, while the control unit regulates the system's operation and monitors its performance. The monitoring system provides real-time data on the system's performance, allowing for adjustments to be made as needed. The OMD-11 requires regular cleaning to prevent fouling

Key Features of the Deckma OMD11 Manual

The Deckma OMD11 manual provides detailed information on the following key features of the system:

Importance of the Deckma OMD11 Manual

The Deckma OMD11 manual is essential for ensuring the proper installation, operation, and maintenance of the system. By following the guidelines and instructions provided in the manual, shipowners and operators can:

Conclusion

In conclusion, the Deckma OMD11 manual is a comprehensive guide that provides detailed information on the installation, operation, and maintenance of the Deckma OMD11 marine oil separator system. By following the guidelines and instructions provided in the manual, shipowners and operators can ensure compliance with international environmental regulations, optimize system performance, and prevent environmental pollution. As a critical component of a vessel's bilge water treatment system, the Deckma OMD11 system plays a vital role in protecting the marine environment, and the manual is an essential resource for ensuring its proper operation.

The Deckma OMD-11 manual 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.

If you have lost your physical copy, do not wait. Download the Deckma OMD-11 manual PDF today, print the calibration section (Chapter 5), and laminate it for the engine control room. In the fight against crankcase explosions, your memory is fleeting, but the manual is permanent.

Final Tip from the Field: The most common user error is pressing "ENTER" too fast and accidentally changing the alarm threshold. When in doubt, turn the central unit off and on again – the EEPROM retains factory settings.

Disclaimer: This article is an interpretive guide based on publicly available Deckma documentation and marine engineering practice. Always refer to the official Deckma OMD-11 manual for your specific serial number before performing maintenance or altering settings.

The Deckma OMD-11 is a 15 ppm bilge alarm monitor designed to accurately measure oil content in water, primarily for maritime use with oily water separators. While it is an older model replaced by newer units like the OMD-24 or OMD-2008, it remains widely used and fully supported for calibration and repairs. Core Capabilities

Measurement Accuracy: It monitors oil content from 0 to 30 ppm, with a trend indication extending up to 50 ppm. IMO Compliance

: The unit is designed to meet International Maritime Organization (IMO) resolution MEPC.60 (33) standards. Advanced Solids Suppression: A standout feature of the

is its ability to distinguish between actual oil particles and solids or water turbidity. This significantly reduces false alarms caused by non-oil contaminants like black iron oxide.

Dual Alarms: Features two independent alarm circuits, factory-set at 15 ppm but adjustable between 2 and 15 ppm. Technical Specifications Power Supply 24V AC/DC (standard) Output Signal 0(4) - 20 mA for external recorders or meters Protection Class IP 65 (watertight alloy enclosure) Sample Temp +1°C to +60°C Dimensions 175 x 190 x 220 mm; Weight: 3.5 kg Installation & Maintenance Highlights

Proximity: The manual mandates installing the monitor as close as possible to the oily water separator. The distance must not exceed 8 metres to ensure a response time under 20 seconds, as required by IMO regulations.

Calibration: The "Zero" point can be re-adjusted on-site using clean water via front panel buttons. However, full calibration must be performed by the manufacturer or an authorized provider like Mackay Marine during IOPP certificate renewals.

Serviceability: The unit uses plug-in technology for its optical components and circuit boards, making component replacement relatively straightforward.

For full operational details and wiring diagrams, you can refer to the Instruction Manual via Scribd or Yumpu.

The Deckma OMD-11 Go to product viewer dialog for this item.

is a specialized bilge alarm monitor developed by Deckma Hamburg GmbH. It is designed to continuously monitor the oil content of bilge water before discharge, ensuring it meets international environmental standards. Core Function & Compliance

Purpose: Acts as a 15 ppm (parts per million) bilge alarm unit, typically used in conjunction with oil-water separator units.

Regulatory Standard: Designed to meet the IMO Resolution MEPC. 60(33) requirements for monitoring oil content in marine environments.

Measurement Tech: Utilizes scattered light measurement to accurately calculate oil concentration while suppressing interference from solids (like iron oxide). Key Specifications

Measurement Range: 0 to 30 ppm, with trend indication up to 50 ppm.

Alarm Settings: Standard factory set point is 15 ppm, but it can be adjusted on-site to 5 ppm or 10 ppm via the front panel.

Outputs: Provides a 0(4)-20 mA signal output for external meters or recorders and includes two independent alarm circuits.

Environmental Limits: Suitable for sample water temperatures between +1°C and +60°C and designed with an IP 65 protection rating for harsh marine conditions. Installation & Maintenance Highlights

OMD-11 : 15 PPM Bilge Alarm Monitor || Deckma Hamburg - Shivtech

Comprehensive Guide to the Deckma OMD-11 Oil Content Monitor The Deckma OMD-11 Go to product viewer dialog for this item.

is a critical piece of maritime and industrial equipment designed to monitor oil-in-water concentration. Specifically engineered for use with oily water separators, this monitor ensures that overboard discharge remains within international regulatory limits—typically 15 ppm (parts per million).

Whether you are an engineer looking for a Deckma OMD-11 manual or a technician performing routine maintenance, this guide covers the essential operation, installation, and troubleshooting procedures for the OMD-11 series. 1. Key Specifications and Design

(Oil Monitoring Device) is known for its compact design and reliable measuring principles.

Measurement Range: 0 – 30 ppm (with an indicator up to 50 ppm). Accuracy: Meets IMO Resolution MEPC.60(33) standards.

Output Signals: Features a 0/4 - 20 mA signal for remote monitoring and two adjustable alarm relays. 2. Operating Principle: Light Scattering

uses the light scattering technique to detect oil particles. A light source passes through the sample water; if oil is present, the light scatters. Highly sensitive sensors measure this scattered light and convert it into a digital ppm reading on the front panel. 3. Installation Guidelines

To ensure accurate readings and prevent "false alarms," follow these manual-recommended installation steps:

Vertical Mounting: The unit should be mounted vertically to ensure bubbles do not get trapped in the measuring cell.

Sampling Point: Install the sampling probe on a vertical section of the discharge pipe, as far as possible from pumps or valves to avoid turbulence.

Sample Pressure: Ensure the sample water pressure is within the manual’s specified limits (typically 0.1 to 10 bar) to maintain a steady flow. 4. Calibration and Maintenance Regular maintenance is vital for MARPOL compliance.

Manual Cleaning: The measuring cell should be cleaned regularly using a dedicated bottle brush and mild detergent. A dirty glass tube is the most common cause of high ppm readings.

Zero Adjustment: Periodically flush the unit with clean, oil-free water to verify the "Zero" reading.

Calibration Check: According to most maritime regulations, the unit should be calibrated or checked by an authorized service provider every five years. 5. Troubleshooting Common Error Codes Go to product viewer dialog for this item. displays an error or fails to respond, check the following:

"Flow" Alarm: Indicates insufficient water flow through the measuring cell. Check for blocked sample lines or closed valves.

Constant 15+ PPM: Usually caused by a fouled measuring cell or air bubbles in the sample. Clean the cell and check the "Desiccator" (the small drying agent container) to ensure no moisture is affecting the optics.

System Failure: Check the internal fuse and ensure the power supply matches the unit's rating. 6. Importance of the Manual for Port State Control

Keeping a physical or digital copy of the Deckma OMD-11 manual on board is a requirement for many Port State Control (PSC) inspections. Inspectors often ask the Chief Engineer to demonstrate the alarm functionality and verify the unit's last calibration date against the manual's log.

Deckma OMD-11 is an older oil-in-water monitor designed for use with 15 ppm oily water separator systems. While it is no longer in production, it remains fully supported and compliant with IMO Resolution MEPC.60 (33) Technical Specifications 0–30 ppm, with trend indication up to 50 ppm. Meets IMO MEPC.60 (33) standards. Alarm Points:

Factory set at 15 ppm; adjustable between 2–15 ppm via front panel buttons. Output Signal: 0(4) – 20 mA (equal to 0–30 ppm). Power Supply: Standard 24V AC/DC; other voltages available upon request. Protection Rating: Dimensions: 175 x 190 x 220 mm (W x H x D). Mackay Communications, Inc. Key Manual Sections OMD-11 Instruction Manual covers the following critical areas: Installation:

Requires mounting on a rigid vertical surface, ideally at eye level.

Connects via 6 mm to 10 mm OD copper or stainless steel pipe.

Includes 2 works-adjusted alarms and a potential-free output for driving recorders or external meters. Maintenance:

Regular cleaning of the measuring cell is essential to prevent solids from obstructing the optical sensor. Troubleshooting:

The manual provides a fault-finding list for common sensor and electronic issues. Support and Calibration Service & Calibration: Calibration must be performed by certified providers like Mackay Marine to meet IMO requirements. Spare Parts:

Replacement parts like O-ring sets and wiper seals are still available through maritime equipment specialists like Replacement:

If the unit fails, Deckma recommends a "service exchange unit" or upgrading to a newer model like the OMD-2008 to ensure continued compliance. or details on the programming mode for adjusting alarm set points? OMD-11 Oil-in-Water Monitor Manual | PDF | Relay - Scribd

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Deckma OMD-11 is an oil-in-water monitor designed by Deckma Hamburg GmbH

to meet international maritime standards for 15 ppm bilge alarms, specifically IMO Resolution MEPC.60 (33)

. Although now considered an older model and no longer in production, it remains widely supported for calibration and spare parts. Technical Specifications

utilizes light-scattering technology to distinguish between oil particles, solids, and water turbidity : 0–30 ppm (with trend indication up to 50 ppm). : Meets IMO MEPC.60 (33) standards.

: Two independent circuits, factory-set at 15 ppm (adjustable from 2–15 ppm). Power Supply

: 24V AC/DC standard; other voltages available upon request. : IP 65 protection rating. : Approximately 3.5 kg. Installation Guidelines According to the OMD-11 manual , proper mounting is critical for regulatory compliance: : The monitor must be located within

of the oily water separator. Distances beyond this may exceed the 20-second response time mandated by IMO regulations.

: Use 10 mm OD copper or stainless steel pipe. Sampling points should be on vertical pipe sections to minimize air entrainment.

: Fix the unit to a rigid vertical surface using 4 x M5 screws, preferably at eye level. Maintenance and Calibration

To ensure consistent accuracy, operators should follow a routine maintenance schedule: OMD-11 Oil-in-Water Monitor Manual | PDF | Relay - Scribd

Operation:

Maintenance:

Troubleshooting:

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Omd11 Manual — Deckma