Rosemount® CTS - Emerson Process Management

Primary and Secondary CTS in one unitRosemount ® CTS - System DescriptionEd 04Product Data SheetFebruary 2013Rosemount ® CTS - System DescriptionCustody Transfer Measurement System for LNGProduct Data SheetFebruary 2013Ed 04By tradition Rosemount ® Tank Radar AB has measured cargoullage on tankers since 1976. Dual/triple measurementchannel technology was introduced more than a decadeago, and has since been applied in several thousand radargauges. From 1999 and until today we have supplied over160 CTS systems for LNG Carriers worldwide. We have alsobeen providing radar based High Level and Overfill Alarmsystems developed specifically for LNG Carriers since 2007.The new Rosemount ®CTS is a revolutionary product,combining the dual measurement channel technology withour CTS experience into a system that measures Primaryand Secondary CTS levels, temperatures and pressures.With a single still pipe installation, and full integration ofdata from both Primary and Secondary sensors, the needfor a separate backup level measurement system is gone.©2013 Emerson Process Management. All rights reserved.Emerson Process ManagementRosemount Tank Radar ABBox 13045SE-40251 SwedenT +46 31 337 00 00F +46 31 25 30 22www.EmersonProcesss.com/mtmThe Emerson logo is a trademark and service mark of Emerson Co. Rosemount and theRosemount logotype are registered trademarks of Rosemount Inc.The contents of this publication are presented for information purposes only, and while effort hasbeen made to ensure their accuracy, they are not to be construed as warranties or guarantees,expressed or implied, regarding the products or services described herein or their use orapplicability. Standard Terms and Conditions of Sale can be issued by contacting RosemountTank Radar AB. We reserve the right to modify or improve the designs and specifications of ourproducts at any time without notice. Rosemount Tank Radar AB accepts no responsibility for anyerrors that may appear in this publication.www.EmersonProcess.com

Rosemount ® CTS - System Description February 2013Rosemount ® CTSRosemount ® CTS is a Custody TransferMeasurement System (CTMS) for LNGCarriers. It is primarily designed as a tankgauging system, providing alarm handlingand communicating information to a cargocontrol system for marine use.System ConfigurationStandard FeaturesRosemount CTS for LNG carriers is a complete system for level,pressure and temperature gauging.The system includes the following features:• Radar ullage measurement• Temperature measurement• Vapor pressure measurementThe Rosemount ® CTS provides accurate calculation ofthe transferred volume according to custody transferstandard methods. Built on proven technology,verified methods and long experience within the areaof tank gauging, Rosemount ® CTS is composed ofseveral subsystems offering a wide range of functionsand solutions.The foundation of the system is built on theintrinsically safe and intelligent Tank Gauge Unit(TGU 53), the Supply and Communication Unit (SCU)that acts as the connection hub and the WorkstationUnit (WSU) as the operator and computer interface.The TGU 53 measures the distance to the cargosurface using a radar signal and sends the measureddata to the SCU that communicates the processeddata with the WSU.Rosemount ® CTS has a high degree of safety built intothe system and meets the requirements of all themajor international marine classification societies.The system also meets all relevant requirementsfrom the IGC code and international standards forLNG Custody Transfer.www.EmersonProcess.comRosemount ®CTS is developed as a combined primaryand secondary level gauging system and a fail-safesolution for the marine environment. The built-inindependency and redundancy supports uninterrupteddata acquisition regardless of sensor failure.A typical configuration is built on two independent radarchannels, primary and secondary, and can be combinedwith several redundancy functions, such as two setsof temperature sensors, two vapor pressure sensors,all included in the one and same TGU. Besides that aworkstation redundancy is added to the system providinga fail-safe solution. The intelligent and intrinsically safe TGUhandles the signals from the radar sensor and the signalsfrom vapor pressure sensors and temperature sensors. Withup to two channels in the TGU, measuring independentlyfrom each other, the measured data is also monitored fromthe two separate service displays on the SCU.Rosemount ® CTS can also be configured with one channelonly using the different redundancy solutions mentionedabove.SCC = Supply and Communication ComputerSCD = Supply and Communication DisplaySCT = Supply and Communication Tank InterfaceSCU = Supply and Communication UnitTGE = Tank Gauge ElectronicsTGU = Tank Gauge UnitWSU = Workstation Unit• Calculation of liquid levels• Volume calculation on the basis of tank tables (tank capacitytable, trim/list correction table and thermal expansion/contraction)• Custody transfer reporting of calculated values• Data logging and report printing• Data transmission to cargo control system, ship computer and/or load calculator• Workstation computer graphical interfaceOptional FeaturesRosemount CTS also has the following optional features:• Handling of dual channel configurations, with Primaryand Secondary CTS gauging. The user can select whichmeasurement data that is used on screens and in CTS reports.• Flexible Cargo Report System• Draft gauging with the LevelDatic system• Field bus modules for analog and digital inputs and outputs• Independent Overfill and High Level Alarm, either with floatswitch or radar sensor technology• Tank display units• Ship’s inclinometer• Status information in Workstation mimic from independentHigh Level and Overfill alarm system• CTS measurement with offshore filtering of level readings• Integration with IAS system