Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. [email protected] www.sonardyne.com Datasheet Lightweight Actuation Transponder (LAT) Description Key Features Part of Sonardyne’s Coastal Acoustic product range, the Type 8044 Lightweight Actuation Transponder (LAT) is a low cost acoustic device that provides cable-less, through water control of subsea electrical equipment. Applications for the LAT include activating the inflation of buoyancy bags and opening or closing valves. The LAT can also be interrogated from the surface to determine its position on the seabed and provide confirmation of electrical activation. • Provides acoustic command and control of subsea electrical devices The output from the LAT can be configured to provide multi-width and multi-pulse electrical outputs to suit a wide range of requirements. A rugged underwater connector ensures reliable activation. The LAT is remotely controlled from the surface using a low-cost deck unit supplied with a dunking transducer and 10 metres of cable. The deck unit is used to program the acoustic identity of the LAT from several thousand available and then test the unit prior to deployment. Once in the water, the deck unit can measure ranges to the transponder and after sending a secure actuation command, relocate the transponder. . • Configurable signal output to suit customer electronics • Depth rated to 500 Metres • Up to 4½ years deployment with Long-life Lithium battery pack • Rugged, compact design • Robust underwater connector • Thousands of secure identities; field programmable with deck unit • Compatible with ROV-Homer and Homer-Pro relocation systems and Scout and Prospector positioning system LATs are also compatible with Sonardyne’s ROV-Homer and HomerPro target relocation systems. Deployed at a point of interest, the LAT can be interrogated, weeks or years later, to provide range and direction guidance to a ROV pilot or diver wishing to home back on to it Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. [email protected] www.sonardyne.com Specifications Lightweight Actuation Transponder (LAT) Feature Depth Rating Operating Frequency Transmit Source Level Receive Sensitivity Number or Unique Addresses Switch On Battery Life Alkaline Lithium Lone Life Lithium Max Actuation Current Actuation Pulse Voltage Actuation Pulse Width Actuation Pulses Per Command Total Number of Actuations Connector Type Mechanical Construction Dimensions (LxDia) Weight in Air Weight in Water Deck Unit Type 8044 500 Metres HF (35-50kHz) 185dB re 1µPa @1m <110dB re 1µPa 3609 (Field Program) Continuously Operating (No On/Off switch) 18 months 34 months 52 months 120mA increasing with shorter pulse widths (Higher currents available) 10-15V DC 2 Second typical (other options available upon request) 1 Typical (other options available upon request) <100,000 (2 seconds @ 1mA) 8 way Sub con MCBH8FAL/2-0 Bulkhead Female Plastic/ S/Steel / Aluminium Alloy (Anodised) 63mm (2.4”) x 490mm (19.3”) 1.7kg 0.4kg Type 7967-000-02 (Includes Transducer and 10 metres of cable) Ordering Information Type 8044-000-01 Type 7967-000-02 Lightweight Actuation Transponder (LAT) LAT Surface Control System Specifications subject to change without notice - 10/2006