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April 2012www.marinelink.com 75Measurement Technology NW (MTNW) successful installed and com-missioned winch control systems for two Rowan jack-ups: the J.P. Bussell and the Gorilla II. MTNW collaborated with Ap- plied Measurements of Texas to ensure the winch control retrofit was successful from initial design to final installation and commissioning on several Le- tourneau W-1500 Anchor winches. Before the J.P. Bussell (225-C Tarzan class jack-up) and the Gorilla II (200-CSlotilever class jack-up) commenced contract operations in SE Asia last year, they underwent a controls and equipment retrofit in Singapore at the Keppel FELS shipyard. MTNW was brought in dur- ing the retrofit by Applied Measurements to provide a new PLC-based controls and monitoring solution for the mooringwinch systems which include runningline tensiometers, a PLC control stationwith remote I/O, LCI-90i local displays,and a central computer system combin-ing existing monitoring software with new PLC interface functionality. Now that we offer PLC-based winch controls, software for data-logging and the line rid- ers to monitor winch activity, we are pro- viding a full end-to-end mooring solutionfor customers,? said Tom Rezanka, Man- aging Director of MTNW. Since we de- sign and build every aspect of these winch control solutions from the steel tothe software, we can guarantee better ac- curacy and faster delivery.? Applied Measurements chose to work with MTNW 3-sheave line riders to monitor the jack-ups anchor winches. By inte- grating the line riders with the mooringcontrols, this system provides accurate and real-time feedback regarding the ac- tions of the operator and the position/ten-sion of the mooring line.Given the time constraints, MTNWs line riders were a quick and easy way to monitor the existing winches. We chose line riders because load pins are more ac-curate than hydraulic pressure or electric current in terms of winch monitoring,? said Applied Measurements owner, Graeme Cashen. Their PLC-based con- trol consoles seamlessly integrated with the rest of the system. Every future off- shore retrofit were involved in will have this kind of approach.? Smith Berger Marine, Inc.builds a full range of Shark Jaws for AnchorHandling Tug Supply vessels. Standard ratings are 100, 200, 350, 500 and 750 metric tons and all units have Quick Release at the rated load.Smith Berger flexibility allows us to customize our equipment to suit theoperating characteristics of your vessel. Third party certification, loadtests, release tests and load monitoring systems are available options. Rely on the 100 year history of Smith Berger to outfit your vessel with our rugged and dependable equipment.SMITHBERGERMARINE, INC.OFFERSA COMPLETELINEOF SHARK JAWS ? TOWING PINS ? STERN ROLLERS Smith Berger Marine, Inc.7915 10th Ave., S., Seattle, WA 98108 USA Tel. 206.764.4650 ? Toll Free 888.726.1688 ? Fax 206.764.4653 E-mail: sales@smithberger.com ? Web: www.smithberger.com SAFE - RELIABLE - ECONOMICALMooring Controls Retrofit for Rowan Jack-ups
