Equipment Specification:

• Heater : 24000 Watt, 360 Volts, 36.5 Ampr, 3 Phase

Fresh water heater chamber 

Problems occurred ( information from the owner / user ):

• Cleaning the heater element and chamber heater

Parts of the job:

1. Clean the heater

1. Unplug the there heater in chamber 
2. Clean the crust attached 
3. Reinstall the heater

2. Clean the chamber heater

1. Unplug the chamber heater 
2. Clean the crust attached
3. Reinstall the chamber

Checked and Repair (Exclude repair and renew spare part)

The parts of the draft gauge system are:

a. Sensor Area (Bow Thruster Room and Stern Thruster Room)

1. Pressure Transmitter/ Transducer Installation
2. Gate Valve
3. Differential Pressure Pipe Installation 

Sensor Area ( Bow Thruster Room)

b. Monitoring Area

1. MDU (Master Display Unit)
2. Barrier (Substation with I/O Module)

The number of sections in the draft gauge system

No	Parts	Qty.
1	Pressure Transmitter/ Transducer	4 unit	Fwd Left, Fwd Right, Port, Starboard
2	Gate Valve Control	4 unit	Fwd Left, Fwd Right, Port, Starboard
3	Differential Pressure Pipe Installation	4 set	Fwd Left, Fwd Right, Port, Starboard
4	MDU (Master Display Unit)	1 unit	Bridge
5	Substation with I/O Module ( barrier)	1 set	Bridge (for 4 unit input signal from Transducer

Pressure Transmitter Unit

Sections that must be checked

a. Pressure Transmitter 

• Pressure Transmitter calibration should be done, to ensure that the device is working properly. 

b. Gate Valve

• Checking function of gate valve to avoid clogging the drain hole. Because disfluencies can reduce the flow of water pressure. 

Pressure Transmitter Unit and Pipe Installation

c. Differential Pressure Pipe Installation

• Checking function of differential pressure pipe installation to avoid clogging the drain hole. Because disfluencies can reduce the flow of water pressure. 

d. MDU

Differential pressure Transmitter Pipe Installation

• Adjustment values ​​/ parameters are the same as the results of the calibration has been done. 
• Substation with I/O Module To ensure that the module is still processing the input from the transducer and feeding into the MDU.
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Combining alarm output vibration monitor to general alarm & excessive vibration trip

Equipment Specification:

• Brand: Shinkawa Sensor Technology , Inc.
• Vibration monitor :
• Input power supply : 86 to 264 VAC 
• Alarm output type : CH 1: 2 point (DANGER & ALERT) 
• Alarm reset (DANGER & ALERT ) : AUTO RESET 
• Alarm delay time (DANGER & ALERT) : 1 sec,3 sec & 6 sec 

Vibration monitor Shinkawa Sensor Technology , Inc

Problems occurred ( information from the owner / user ):

• Owner want to alarm vibration there are two stages 

1. First time of vibration increases. then give a signal & indicator 
2. Second time is more vibration while increasing. will automatically shut down the engine

Inspection results:

1. To run this system I have set up a control cable from the switch board to the turbine generator alarm panel
2. Add a one relay to transmit a signal to a general alarm and excessive vibration trip
3. Buzzer Turbine Generator Alarm panel does not work 
4. General Alarm system in T.G alarm panel , Not correct functioned.

Problem solving and result 

1. ALERT ALARM :

• Pulling the cable 2x1.5mm of vibration monitors to Turbine Generator Alarm Panel are use to signal indicators and general alarm 
• Set up a control cable for auxiliary contacts are used for general alarm 
• Fix the broken buzzer 

2. DANGER ALARM :

• Pulling the cable 2x1.5mm of vibration monitors to Turbine Generator Alarm Panel are use to signal indicators and general alarm 
• Installing the relay, which is used to send signals to the Turbine Generator Alarm Panel and Control Turbine Generator Panel (place : Turbine Generator)
• Set up a control cable for auxiliary contacts are used to setting up contact relay and power relay
• Connect the alarm output signal danger to EXCESSIVE VIBRATION TRIP in the control TG panel

3. T.G ALARM PANEL : 

• Correcting wiring General Alarm in the inside T.G Alarm Panel 
• Get you auxiliary contact of R1 R2 R3 R4 R5 R6 and incorporate in the terminal General Alarm.