In the event of a power failure or system malfunction, all internal relays automatically switch to the alarm condition.
Mounted on a stainless steel plate for easy installation. Fully Automatic: Continuous sampling and analysis.
Clean the glass tube using the procedure above. If air bubbles are present, increase the sample line pressure slightly or check the sample pump for air leaks. Problem: "System Fault" or Blank Display
Always turn off power before opening the terminal cover. deckma omd11 manual
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:
Verify that the 3-way valve actuates correctly when the test button is pressed. 7. Troubleshooting Common Faults
Fix : Clean the measuring cell thoroughly with a solvent brush. Meaning : Relay contact failure or incorrect wiring. In the event of a power failure or
Do not use a generic manual from the internet unless the revision number matches your hardware (Rev. 4.2 versus Rev. 5.0 have different service menus).
A significant section of the manual is dedicated to fault finding. The most common issues, as implied by the maintenance schedule, are related to contamination. If the display fails to zero during startup, the manual instructs the operator to first perform a mechanical cleaning of the glass tube before attempting a zero adjustment. Other potential faults (like a complete loss of display or alarm function) would necessitate checking the power supply to terminals 1 & 2 and inspecting the PCB for damage or loose connections.
Wire the main power supply and the alarm relays according to the specific terminal diagram found inside the housing cover. Always separate low-voltage signal lines (4-20mA) from high-voltage power lines to prevent electrical interference. 5. Daily Operation and Calibration Checks Clean the glass tube using the procedure above
The display will show the current PPM value.
If the oil content exceeds the set alarm point (usually 15 ppm), the red LEDs flash, and the internal relays are activated, enabling the user to stop the overboard discharge.
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: