JOWA CleanOil 9000 Oil Discharge Monitoring Equipment (ODME) Computer Unit

Technical Guide | Troubleshooting | Calibration | Spare Parts | Maintenance | Manual PDF | Supplier

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Title

JOWA CleanOil 9000 Oil Discharge Monitoring Equipment (ODME) Computer Unit – Manual, Troubleshooting, Calibration, Spare Parts & Marine Supplier | SM MARINE SERVICE™

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 Description

Manufacturer

JOWA AB

Country of Origin

Sweden

Product Type

Oil Discharge Monitoring Equipment (ODME) Computer Unit

Marine Application

Crude Oil Tankers, Product Tankers, Chemical Tankers and other MARPOL-compliant vessels requiring oil discharge monitoring and recording.

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Product Introduction

The JOWA CleanOil 9000 is one of the most recognized Oil Discharge Monitoring Equipment (ODME) systems installed on tanker vessels worldwide. Developed by JOWA AB, Sweden, this equipment continuously measures and records the oil concentration of discharged ballast or tank washing water to ensure compliance with international marine pollution regulations.

Unlike ordinary monitoring devices, the CleanOil 9000 combines advanced oil-content measurement, discharge monitoring, automatic recording, printer logging, valve control, alarm management, and operational reporting into one integrated computer-based system.

The system continuously calculates oil concentration together with vessel speed, flow rate, discharge volume, GPS position (where applicable), and operational status before allowing overboard discharge.

For shipowners and operators, the JOWA CleanOil 9000 helps maintain compliance with IMO MARPOL Annex I, avoiding costly violations and protecting the marine environment.

SM MARINE SERVICE™ supplies New, Used, and Reconditioned JOWA CleanOil 9000 systems, spare parts, repair services, calibration support, and worldwide technical assistance.

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What is the JOWA CleanOil 9000?

The JOWA CleanOil 9000 is an intelligent ODME computer designed to monitor every discharge operation from cargo tanks, slop tanks, or ballast tanks on oil tankers.

Instead of simply measuring oil concentration, the system continuously determines whether the vessel is legally permitted to discharge overboard based on multiple operating parameters.

The equipment automatically:

• Measures oil concentration
• Calculates oil discharge rate
• Monitors discharge flow
• Monitors vessel speed
• Records operational events
• Stores alarm history
• Controls discharge valves
• Prints discharge reports
• Protects against illegal discharge

Because of this automation, the system significantly reduces the possibility of accidental or illegal pollution while simplifying regulatory inspections.

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Working Principle

The CleanOil 9000 operates using a continuous monitoring process.

1. Sample water is drawn from the discharge line.
2. The sampling unit measures oil concentration.
3. Flow sensors calculate discharge quantity.
4. Vessel speed data is received.
5. Position information is recorded.
6. The computer continuously calculates discharge rate.
7. Results are compared with IMO limits.
8. If discharge exceeds allowable limits, alarms activate automatically.
9. The overboard valve can be closed automatically.
10. Every operation is stored and printed for inspection.

This fully automated process minimizes human error while maintaining regulatory compliance.

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Main Components

The JOWA CleanOil 9000 consists of several integrated modules working together.

Computer Unit

The main processor performs calculations, alarm handling, discharge logic, and data storage.

Terminal Panel Printer

A built-in thermal printer generates official discharge records for inspection authorities and onboard documentation.

LCD Display

Displays operational status, alarms, concentration values, calibration data, and maintenance information.

Operator Keyboard

Allows engineers to:

• Navigate menus
• View history
• Configure settings
• Start calibration
• Perform diagnostics
• Access service functions

Sampling Unit

The sampling cabinet continuously extracts representative samples from the discharge pipeline for analysis.

Oil Content Sensor

Measures oil concentration with high accuracy using optical measurement technology.

Flow Measurement System

Determines discharge quantity for regulatory calculations.

Automatic Valve Interface

Controls discharge valves whenever discharge exceeds permissible limits.

Alarm Circuit

Provides audible and visual alarms for abnormal operating conditions.

Data Memory

Stores operational history, alarm logs, calibration records, and discharge reports for future inspection.

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Key Features

The JOWA CleanOil 9000 remains widely used because of its proven reliability and compliance-focused design.

Major features include:

• Continuous oil discharge monitoring
• Automatic MARPOL compliance calculations
• Built-in printer
• Integrated alarm management
• Automatic valve control
• User-friendly keypad
• Service diagnostics
• Calibration functions
• Historical event storage
• Rugged marine construction
• Long operational life
• Easy maintenance
• High measurement accuracy
• Reliable operation in harsh engine-room environments

Technical Specifications

The exact configuration of the JOWA CleanOil 9000 may vary depending on the vessel and installation year, but the system generally includes the following technical characteristics:

The modular design allows individual components such as the computer unit, sampling cabinet, printer, valves, sensors, and interface boards to be serviced or replaced without replacing the complete system.

SM MARINE SERVICE™ provides worldwide sourcing of complete systems as well as individual spare parts for the JOWA CleanOil 9000.

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Marine Applications

The JOWA CleanOil 9000 is primarily installed on oil and chemical tankers where oil discharge operations must comply with strict international environmental regulations.

Typical applications include:

• Crude Oil Tankers
• Product Oil Tankers
• Chemical Tankers
• Shuttle Tankers
• Offshore Loading Systems
• Slop Tank Monitoring
• Ballast Water Discharge Monitoring
• Cargo Tank Washing Operations
• Tank Cleaning Monitoring
• Cargo Pump Room Monitoring

Its ability to continuously calculate discharge rates makes it one of the industry's trusted environmental protection systems.

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IMO MARPOL Annex I Compliance

One of the main purposes of the CleanOil 9000 is to help vessels comply with IMO MARPOL Annex I, which regulates the prevention of pollution by oil.

The system continuously verifies:

• Oil concentration
• Ship speed
• Discharge flow rate
• Total discharged quantity
• Geographic position (where integrated)
• Date and time
• Alarm conditions
• Valve operating status

If operating conditions exceed allowable limits, the system immediately activates alarms and can automatically stop overboard discharge by controlling the discharge valve.

This automatic protection greatly reduces the risk of accidental pollution and assists vessels during Port State Control (PSC), Flag State inspections, and classification society surveys.

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Common Problems & Troubleshooting

Like any marine electronic monitoring equipment, the CleanOil 9000 requires periodic inspection and maintenance. Some common issues include:

1. Printer Not Printing

Possible causes:

• Empty thermal paper
• Printer head contamination
• Loose communication cable
• Printer module failure

Recommended action:

• Replace thermal paper
• Clean the print head
• Verify cable connections
• Test printer diagnostics

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2. Oil Concentration Reading Unstable

Possible causes:

• Dirty measuring cell
• Contaminated sampling line
• Air bubbles
• Optical sensor contamination

Recommended action:

• Clean the measuring cell
• Flush the sampling system
• Remove trapped air
• Perform sensor calibration

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3. Continuous Alarm

Possible causes:

• Sensor fault
• Calibration required
• Valve malfunction
• Incorrect flow signal

Recommended action:

• Review alarm history
• Inspect sensors
• Verify valve operation
• Recalibrate the system

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4. LCD Display Blank

Possible causes:

• Power supply failure
• Display board fault
• Internal fuse damage
• CPU communication issue

Recommended action:

• Check input power
• Inspect fuses
• Test display board
• Verify computer unit communication

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5. Overboard Valve Not Operating

Possible causes:

• Solenoid valve failure
• Electrical wiring issue
• Pneumatic actuator problem
• Control relay failure

Recommended action:

• Inspect the actuator
• Test the solenoid
• Verify wiring continuity
• Check relay outputs

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Calibration Procedure

Routine calibration is essential for maintaining measurement accuracy.

Typical calibration involves:

• Cleaning the measuring cell
• Flushing the sampling line
• Zero calibration
• Span calibration
• Sensor verification
• Alarm testing
• Printer verification
• Valve functional testing
• Recording calibration results
• Updating maintenance records

Calibration should always follow the manufacturer's recommended procedures using approved reference standards.

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Preventive Maintenance Tips

Regular preventive maintenance helps extend equipment life and improve reliability.

Recommended maintenance tasks include:

• Inspect sampling lines weekly.
• Clean optical components regularly.
• Replace printer paper before depletion.
• Check electrical terminals for corrosion.
• Inspect valves for leakage.
• Verify alarm functions.
• Confirm printer operation.
• Test discharge valve response.
• Review stored alarm history.
• Perform scheduled calibration.

Proper maintenance minimizes unexpected failures during cargo discharge operations.

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Common Spare Parts

Engineers frequently source the following replacement parts for the JOWA CleanOil 9000:

• Computer Unit
• CPU Board
• Display Module
• LCD Screen
• Keypad Assembly
• Terminal Panel Printer
• Thermal Printer Head
• Printer Paper Roll
• Sampling Unit
• Measuring Cell
• Optical Sensor
• Oil Content Sensor
• Flow Sensor
• Solenoid Valve
• Overboard Valve Actuator
• Sampling Pump
• Power Supply Board
• Interface PCB
• Communication Board
• Relay Board
• Alarm Module
• Fuse Kit
• Connectors
• Terminal Blocks
• Wiring Harness

SM MARINE SERVICE™ supplies complete systems as well as individual spare parts according to vessel requirements.

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Frequently Asked Questions (FAQ)

Is the JOWA CleanOil 9000 still supported?

Yes. Many vessels continue operating this system, and spare parts, repair services, and calibration support remain available.

Can the printer be replaced separately?

Yes. The terminal panel printer can usually be serviced or replaced independently.

How often should calibration be performed?

Calibration intervals should follow the vessel's maintenance schedule and manufacturer recommendations, or whenever measurement accuracy is in doubt.

Can individual electronic boards be repaired?

In many cases, yes. CPU boards, display boards, power supply modules, and interface boards can often be repaired or exchanged.

Does SM MARINE SERVICE™ supply reconditioned units?

Yes. Depending on stock availability, SM MARINE SERVICE™ can supply new, used, or professionally reconditioned JOWA CleanOil 9000 systems and spare parts with worldwide shipping.

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Short Product Description

The JOWA CleanOil 9000 Oil Discharge Monitoring Equipment (ODME) is a proven marine pollution prevention system developed by JOWA AB, Sweden. It continuously monitors oil discharge operations, records essential environmental data, controls discharge valves, and supports compliance with IMO MARPOL Annex I regulations. Its robust design, integrated printer, automatic alarm management, and reliable monitoring capabilities make it a trusted solution on tankers worldwide.

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User Manual & Technical Resources

For maintenance, calibration, and operation, engineers should refer to the official JOWA documentation, including:

• JOWA CleanOil 9000 Operation Manual
• Installation Manual
• Service Manual
• Calibration Manual
• Spare Parts Catalogue
• Wiring Diagram
• System Configuration Manual
• Maintenance Instructions

Always use the documentation that matches your vessel's installed hardware revision and software version.

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Why Choose SM MARINE SERVICE™

SM MARINE SERVICE™ is a trusted supplier of marine automation equipment, navigation systems, environmental monitoring systems, and spare parts.

We provide:

• New Equipment
• Used Equipment
• Professionally Reconditioned Equipment
• Worldwide Shipping
• Genuine & Compatible Spare Parts
• Repair Services
• Calibration Support
• Technical Consultation
• Fast Global Sourcing

Company Information

SM MARINE SERVICE™

Bangladesh Office:
Samir Market, DT Road, Pahartali, Beside CDA Market, Chattogram, Bangladesh

China Warehouse & Support Center:
Shanghai, China

Website: www.smmarineservice.com

Email: info@smmarineservice.com

WhatsApp: +8801818929292

Marketing Contact: Nazmul Hasan Bhuiyan

Whether you require a complete JOWA CleanOil 9000 ODME system, replacement computer unit, terminal panel printer, sampling unit, sensors, electronic boards, calibration support, or spare parts, SM MARINE SERVICE™ is ready to support your vessel with reliable products and professional marine technical services worldwide.

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