UGteck™ | 900.101- Musasino Float type Gauging Problems & Advice https://www.ugteck.com UGteck™ Thu, 10 Feb 2022 14:56:04 +0000 en-US hourly 1 https://wordpress.org/?v=6.5.2 900.101- Musasino Float type Gauging Problems & Advice https://www.ugteck.com/900-101-musasino-float-type-gauging-problems-advice/ Thu, 10 Feb 2022 14:33:15 +0000 https://www.ugteck.com/?p=7140

900.101- Musasino Float type Gauging problems & advice 

Every superintendent deals with these issues during lifecycle of the ship. While it is a reputed brand with wide service network however like any other equipment, dealing with equipment brings own sets of problem. Mostly on older ship owners are always in a fix how much to spend on maintenance and are in fix how to go about resolving this.

Float Type Level Gauge with built-in tank pressure monitoring and tank temperature sensors. Some of them have Local indicator and some have only in control room where a panel is provided for display. At the top of the cargo tank is provided with various signal outputs (PCBs).

Following are main problems

Cargo tank level not shown in CCR and Local indicator.

Float: Check the float condition for any damage and its floating. This can be carried only by man entry for which gas freeing is required. The level can be moved by a rope tied up and move the float up and down. If the readings either locally or at CCR are corresponding with the float, then it is Float issue. The usual thing is the replace the float however it can be refurbished also in our service Lab.

Level Sensor: If the Float is moving but the reading is still not changing, Level sensor could be defective. If the local display is provided same to be checked else check the sensor supply voltage should be around 5-volt dc and output signal should be 0- 5-volt dc as per tank level on tank top. The sensors are intricate part and usually ship is required to be renewing same with new one. The sensors is a

long rod which has series of Reed switches having an outside float which has magnet. As the float moves up and down, the resistance changes accordingly and hence the level is measured.

Repair Options of Sensors: The new is expensive and at times the owners can look at option of repairing them which can be sent to our service lab for thorough checking and repairing if repairable.

Barrier: Check the tank level signal in CCR before and after barrier, should be 0-5 volt dc as per tank level, if output signal on tank top is ok and not proper at barrier input then

cable from CCR Console to tank top be broken needs to be replaced. If signal on tank top and at barrier input is ok and not proper at barrier output, then barrier is defective and needs to be replaced.

Check the indicator device id is correct and replace with another working indicator if possible.

If the tank signal after barrier is ok and level is not shown, then the input card might be defective needs to be replaced. It is good practice to keep spare PCBs. You can land the defective PCBs in our service Lab for refurbishing.

Cargo tank level jumping/ Skipping the reading or Erratic & unreliable

Check the float is floating straight and not tilted. Could be checked once the cargo tank is gas free.

Level sensor might be damaged. Check the sensor supply voltage should be around 5 volt dc and output signal should be 0- 5 volt dc as per tank level on tank top.

Cargo tank high (95%) and high- high (98%) alarm.

Check the supply voltage on tank top. And output signal. If not proper sensor needs to be replaced.

When the alarm is simulated using magnet the voltage should drop. If output signal on tank top is ok and not proper at barrier input, then cable from CCR console to

 

tank top be broken needs to be replaced. If signal on tank top and at barrier input is ok and not proper at barrier output then barrier is defective and needs to be replaced.

 

Check whether the high / high-high alarm indication on level indicator and relay output (contact) in indicator is active while the alarm is simulated. If not then relay inside level indicator is defective needs to be replaced.

If the relay contact inside the level indicator is ok then the alarm logic for 95% and 98% needs to be checked.

General guidelines- There are two set of system. The tank level guaging system and overfill alarm are different set of systems. On the panel there is Ullage, temp and pressure of each tank.

The sensors which are fitted on each tank for pressure or vaccum must be checked that they are funcitioning. The function test can be carried out by the kit which is provided onboard which basically is a syringe. This allows only to check that with change in pressure OR vaccum the readings are changing. The guidelines for same can be found in manual or our form 900.102

In case the display indicator is defective, you can land with us for possible repair. For programming of the indicator, we need the setting which possibly be avilable with the client from makers.

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Reinvent Superintendent’s Role in Digital world https://www.ugteck.com/reinvent-superintendents-role-in-digital-world/ https://www.ugteck.com/reinvent-superintendents-role-in-digital-world/#respond Thu, 20 Jan 2022 11:23:43 +0000 https://www.ugteck.com/?p=6787

Ship Management is not an easy business to be in, and no one knows better than Management bosses. For shipping companies, the revenue model has not changed for years whereas operating expenses have increased continuously, hence, to be in business you must outsmart your own way of working to reduce your operating cost whereas the Management fees cannot be exceeded beyond certain numbers.

Superintendent is usually the most expensive component of ship management cost. Each company may have tried different possibilities like in a fleet of 25 ships managed by 4 to 6 superintendent and a fleet Manager who himself work as back up for superintendent & always busy with dealing critical issues. Each ship must be visited by superintendent in 6 months and usual visit could last for a week at least or more and in drydock for almost a month hence it calls for expensive redundancy at office. Each additional superintendent cost around $12K monthly to company which is a big cost.

However, with this conventional thought process, the management commercial efficiency is linked to superintendent experience and his efficiency who himself is a human being and has a capacity restriction. As the superintendent gains more experience to take more responsibilities so is his salary rise and end of the day owners cost numbers are still fluctuating around certain window.

Our recent era has been rewarded by technology connectivity in real time & Covid 19 forced companies not just to work remotely but realize also that this is an option which can work. The

availability of internet onboard has made it possible thing which possibly we would not have thought just few years ago.

If we analyze the superintendent job, it is around 30% of time is spent in job for which he is hired ie use his expertise to run the ship where are rest are mundane job which can be done by persons 1/3rd of his salary. So if the superintendent is engaged on all jobs, he is not utilized to his potential.

So superintendent is like a commodity like any other business, say a hotel business where the profit margin depends on the hotel occupancy. If we take App-based hotel chain model ( Say OYE) where any hotel across the country they give the same room at much cheaper price then if you directly contact the hotel for same room. This is possibly by improving the occupancy of the hotel by use of digitalization. So if they have improved the occupancy from 40% to 70%, the room which was available from hotel at $50, for same revenue, the room can be priced at $30 which is a big reduction.

And this is the business model what shipping owners should aspire, improve Occupancy of superintendent.

There can be an argument that dedicated superintendents do better is not appropriate anymore. He knows the ship better than other but at what price? Today a Superintendent can do the remote attendance of his vessel to get the feel of his ship whereas physical attendance can easily be carried by virtual superintendent available at each location with similar effectiveness as superintendent. This off course call for effective use of digital technologies for effective collaboration ensure that virtual superintendent attendance is in line with your attendance .

Similarly if we think that superintendent analyze the monthly performance better than any 3rd party dedicated team is totally incorrect. A dedicated person or team who spends good time on performance is expected to do better analysis due to his better understanding.

Other than this, the virtual call centers by use of technology whereby technical support on type of ship problem is a possibility thereby reducing the reliance on superintendent.

The digital world is doing wonders and owners would be fool if they cannot take the advantage to their benefit.

By Vijay Arora- MD UGteck™ Marine Pvt ltd

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