To program these, the operator uses a chord-press method: enters the programming mode. The display toggles between the letter "A" (Alarm setpoint) and a number, or "T" (Time delay) and a number. The setpoint or delay is adjusted using the arrow keys and confirmed by pressing the ■ button.
Ensure water is flowing freely through the measuring cell without leaks. Switch on the main electrical power.
The OMD-11 manual outlines a device designed for reliability and ease of use in harsh marine environments. At the heart of the device is an that uses a combination of scattered and absorbed light to continuously analyze the sample stream, with a microprocessor processing the signals to produce a linearized output. Its key features, as listed in its marketing documents, highlight a practical focus:
| Fault Indication | Likely Cause | Manual Page Reference (Typical Rev 5.0) | | :--- | :--- | :--- | | | LED driver board failure or degraded LED. | Section 9.2.4 – Test points for voltage (5.2V DC expected). | | "Flow Failure" | Blocked sintered filter on the crankcase fitting or damaged diaphragm pump. | Section 8.3.1 – Filter replacement interval (every 8000 hrs). | | "Zero Offset" | Contaminated reference cell due to oil carryover. | Section 10.1 – Procedure for chemical cleaning of the measuring chamber. | | "Heater Current Low" | Open circuit in the heating element (crankcase cold but not warming). | Section 12 – Wiring diagram for heater (pins 14 & 15 on terminal strip X3). | | Frequent False Alarms | Condensation (not mist) – unit too cold. Manual specifies ambient range -25°C to +55°C. | Section 2.4 – Ensure a heated enclosure is used for cold climates. | deckma omd11 manual
| 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. |
(Oil Monitoring Device) is known for its compact design and reliable measuring principles.
Ultimate Guide to the Deckma OMD-11 Bilge Alarm: Operation, Maintenance, and Troubleshooting To program these, the operator uses a chord-press
Use a pressure-regulating valve if sample pressure exceeds 2 bar. Electrical Wiring Isolate the main power before opening the enclosure. Wire the power supply to the designated terminals.
Prepares the sample water for measurement.
| Parameter | Specification | | :--- | :--- | | | Light Scattering (Infrared/Near-IR) | | Measuring Range | 0 – 100 ppm (parts per million) | | Resolution | 0.1 ppm | | Accuracy | ±10 ppm (0-100 ppm range) | | Sample Flow Rate | 3 – 4 Liters per minute (typical) | | Ambient Temperature | -25°C to +55°C | | Sample Water Temp | +10°C to +65°C | | Power Supply | 100-240 VAC, 50/60 Hz | | Alarm Set Points | 15 ppm (Standard Bilge), 100 ppm (Alarm) | | Outputs | 4-20 mA analog output; Relay contacts for alarms | | Protection Rating | IP56 / IP65 (Control Unit) | Ensure water is flowing freely through the measuring
is a specialized bilge alarm monitor designed to measure oil-in-water concentrations, ensuring maritime vessels comply with International Maritime Organization (IMO) regulations
Provide instructions on how to perform the . Find the specific wiring diagram for your OMD-11 model. Help you find an authorized service center for your region. Let me know how I can help you further! Mackay Communications, Inc. DECKMA HAMBURG GmbH - OMD-11
The standard operating procedure for the OMD-11 ensures accurate readings from the start: