Home » Repair and Calibration Oil Discharge Monitoring and Control System MT SG Bahari PT Samudera Gemilang Bahari

Repair and Calibration Oil Discharge Monitoring and Control System MT SG Bahari PT Samudera Gemilang Bahari

IDENTIFICATION RESULT

Repair and Calibration Oil Discharge Monitoring and Control System

Specification

  • Name Device    : Oil Discharge Monitoring and Control System (ODMCS) MEPC 108(49)
  • Computer Unit  : Cleantoil 2005
  • Pump Analize Unit
    • Measuring Range : 0 – 1000 PPM
    • Terminal Box : ATEX Cert, No. Sira 05ATEX2171
    • Measuring Unit : ATEX Cert, No. Sira 05ATEX2175
  • Flowmeter         : 0 to 15ppm (the factory is set to 15ppm).
  • Communication : 
    • 4-20 mA analog signal Flowmeter
    • 4-20 mA analog signal Analysing Unit PressureTransmitter
    • Voltage free pulse signal Ships Log
    • GPS Input, NMEA 0183 protocol or RS232

Problems Found

  • Fresh Water Supply ERROR
  • Sample Pump ERROR
  • Air Supply ERROR
  • Wiper ERROR
  • 100 PPM Test ERROR

Repair and Calibration Oil Discharge Monitoring and Control System MT SG Bahari PT Samudera Gemilang Bahari, Problem    Repair and Calibration Oil Discharge Monitoring and Control System MT SG Bahari PT Samudera Gemilang Bahari, Problem 2

SOLUTION AND ACTION TAKEN

Fresh water Supply ERROR

Basic: ERROR status because it does not get a pressure reading from the Pressure Transmitter. This pressure is generated by the Unit Sample Pump

  • Ensure fresh water pressure is available for the pump analyzing unit.
  • Water pressure is available for the Pump Analyzing Unit
  • Troubleshooting the “Sample Pump ERROR” first

Sample Pump ERROR

Basic: ERROR status because it does not get a pressure reading from the Pressure Transmitter. This pressure is output by Unit Sample Pump
  • Ensure that the Pressure Transmitter reads the pressure out by Sample Pump Unit
  • The result of checking the Pressure Transmitter: Damaged, does not produce a signal of 4 – 20 mA.
  • Pressure Transmitter unit replacement
  • Notes for changing the pressure transmitter
  • Old unit type : EEx ia IIC T6 DMT 02 ATEX E 114X
  • New unit type : Cerabar PMP21 Absolute

Old Unit


New Unit


Air Supply ERROR

  • Ensure that the Limit Switch Box unit on the Over Boat Valve (OBV) is working properly.
  • To ensure that the Pressure Transmitter Air Supply works, a bypass is carried out on the Limit Switch Box unit at the OBV.

Wiper ERROR

  • Just as the reading ‘air supply’ ensures the air pressure is ready.

100 PPM Test ERROR

  • First solve the problems above (Fresh Water Supply ERROR, Sample Pump ERROR, Air Supply ERROR, Wiper ERROR

RESULT AND CONCLUSION

The system is running normally, all ERROR status has disappeared.
In selftest mode, the process goes as follows:
  1. 3-way valve opens to the fresh water / flushing position èSample Pump unit rotates to suck the output from the 3-way valve. In this case Fresh Water è Sample pump unit output puts pressure on the Pressure Transmitter è Pressure value output by the Pressure Transmitter is sent to the Computer Unit to state that:
    • Sample Pump is ready
    • Fresh water ready
  2. In a condition where the air pressure is ready and the OBV Close position, the pressure transmitter gets air pressure, then reports it to the computer unit stating that:
    • Air Pressure ready
    • The wiper is ready
  3. Pressure released by the sample pump, apart from being read by the pressure transmitter, also enters the detection glass on the measuring unit, then reports it to the computer unit and states:
    • 100 PPM Test ready.

DOCUMENTATION

Repair and Calibration Oil Discharge Monitoring and Control System MT SG Bahari PT Samudera Gemilang Bahari
Computer Unit
Repair and Calibration Oil Discharge Monitoring and Control System MT SG Bahari PT Samudera Gemilang Bahari
Flowmeter

Repair and Calibration Oil Discharge Monitoring and Control System MT SG Bahari PT Samudera Gemilang Bahari
Measuring Unit

Repair and Calibration Oil Discharge Monitoring and Control System MT SG Bahari PT Samudera Gemilang Bahari
Solenoid Panel Unit

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