IMO accepts pressure sensors and alarm systems

Apr 01 2014

The question of pressure alarms and sensors has now come to a head.

With the IMO now accepting pressure sensor and alarm systems as a means of protecting cargo tanks from overpressure, installing such systems is not only ideal for retrofit situations, but also the most cost-effective route to compliance.

A complete end-to-end pressure measurement system, delivered by PSM and its partner Tile Marine, is providing an economical solution for shipowners who need to comply with the new cargo tank overpressure legislation, the companies claimed.

In partnership with its UAE based accredited sales and engineering partner Tile Marine, PSM has already helped one vessel owner to conform with the regulations by supplying a complete system of pressure sensors, displays and alarms.

Together, the two organisations can provide a fully integrated service from surveying and system specification, through to installation and testing, PSM said.

Tile Marine initially carried out a vessel survey to understand the precise mechanical and electrical installation requirements for monitoring cargo tank overpressure. Based on the findings of the survey, UK-based PSM, has designed and supplied the complete turnkey system to address the vessel’s specific needs.

Once delivered from PSM, Tile Marine installed the whole system in a UAE shipyard and then carried out commissioning and testing to ensure smooth operation and minimum disruption for the owner.

PSM’s ict 1000 pressure transmitters, which are IACS UI SC 140 compliant, are fully protected against positive, or negative overloads and submersion. They are available with a choice of flanged, or threaded fittings for installation directly to the tank top or piping into the venting system.

The MTU display unit located in the cargo control room provides a monitoring station that gives an indication of   normal, or alarm, status for each tank, as well as the actual pressure.

PSM said that it had drawn upon 30 years of global marine experience to develop the ict 1000 series of pressure transmitters; its cooperation with Tile Marine now provides shipowners with a single, co-ordinated source for cargo tank overpressure protection.

Mark Jones PSM sales director, said: “Through this partnership with Tile Marine, PSM is able to deliver an even greater, cost effective, service to customers.

Tanker owners throughout the UAE region can benefit from a complete end-to-end system of surveying, system design, engineering, installation, commissioning and testing.”

About pSM

Established for over thirty years, PSM Instrumentation is a specialist in the design, manufacture and supply of advanced marine control instrumentation and marine protection systems for the marine transportation industry. PSM offers a range of application solutions for designers, shipbuilders and end-users, to ensure vessels operate efficiently and reliably and are compliant with legal, safety and environmental regulations. Main application solutions include:

ClearView: Award winning monitoring and control systems for oily water separators, oil record book automation and bunker fuel management

TankWatch: Marine tank level monitoring and supervision systems for ballast, cargo, service and bunker fuel oil tanks

BulkSafe: Water ingress detection systems and water level alarm systems to protect bulk carriers in accordance with SOLAS regulations

PSM products carry all required type approvals from the main leading marine societies, in addition to many country specific approval standards. PSM is approved to BS EN ISO 9001:2000.

PSM has also launched the BilgeSafe flood detection system, which identifies and alarms water ingress in bilge, void and watertight spaces.

The system provides a robust flood monitoring and alert package for commercial vessels and offshore installations.

Delivered as a complete flood detection package, each BilgeSafe system comprises PSM’s BLS 2000 bilge level switch, along with a PSM TankWatch graphical display unit and software to provide a constant, clear status of all spaces being monitored.

Claimed to be simple to install and operate with only one switch required per watertight space, the system is scalable for multiple detection points.

Switches can be easily tested without external tooling or services required and, in accordance with the SOLAS requirements, the system is configured to be failsafe. Any loss of power, or communications to any detector will result in an immediate bilge alarm warning.

The BilgeSafe switch is also fully submersible to IP68 and resistant to all common marine fluids, such as sea water, fuel oil and hydraulic fluid. The switch is tested and approved for marine duty by Lloyd’s Register, Bureau Veritas and DNV GL.

To provide maximum flexibility in monitoring and reporting, the TankWatch display and alarm software can also interface to other shipboard monitoring systems, or remote annunciators.

“Whether you need to comply with regulation, or are simply installing flood detection systems as good practice,” said Mark Jones, PSM sales director, “we are pleased to offer BilgeSafe as an approved, simple to operate system that provides a vital marine safety function in one complete solution.”

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