sonardyne uk (head office) t. +44 (0) 1252 872288 f. +44 (0) 1252 876100 e. sales@sonardyne.com www.sonardyne.com datasheet autonomous monitoring transponder (amt) description the type 8305 amt is an extension to the functionality provided by compatt 5 (extensively used for subsea survey tasks) but with unique autonomous (without surface control) acquisition of acoustic ranges and sensor data. the data is time- stamped and logged internally for recovery via the integrated high- speed acoustic telemetry modem. the autonomy allows me asurements to be made over a long period of time without a surface vessel or rov being available to command the process. this enables new applications that save vessel and survey time so reducing cost and risk. precision sensors (pressure, temp, sound velocity and dual-axis inclinometers) are integrated and are intelligently powered up at the requested time and sampling period, providing an ultra-low power platform for up to three years deployment, including recovery of all data via telemetry. sampling regimes can be re-programmed remotely via the telemetry link. the amt has many of the same acoustic functions as compatt5, operates in the medium frequency band and is fully sonardyne wideband? compatible. the amt is available with a range of transducers (omni and directional), depth ratings and pressure housings dependent on deployment duration and application. additional sensors can be easily integrated externally via the power and communications port. typical applications ? metocean platform: subsea acquisition of current profile, temperature, sound velocity and tidal height record ? auv survey and metrology reference, acoustic position reference, sv and tidal height correction station ? pipeline buckle monitoring ? structure settleme nt monitoring key features ? autonomous operation: acquires acoustic ranges & sensor data without surface command ? integrated precision sensors: pressure, temp, sv, inclinometers ? options for external sensors: current meters etc. ? easy to set-up with configuration and sampling period programmable via telemetry link ? integrated high speed modem functions ? sonardyne wideband compatible navigation functions ? 3 year deployment battery life: alkaline and lithium battery options ? hipap ? and usbl compatible ? depth rated to 3000 metres: (options for 5000 metres and 7000 metres) ? aluminium bronze or hard- anodised aluminium housing options ? integrated release mechanism option
sonardyne uk (head office) t. +44 (0) 1252 872288 f. +44 (0) 1252 876100 e. sales@sonardyne.com www.sonardyne.com specifications subject to change without notice ? 01/2009 specifications autonomous monitoring transponder (amt) 8305-3411 8305-3111 8305-3112 1003.0 mm [39.49 in] 1034.4 mm [40.72 in] 1009.8 mm [39.76 in] 143.0 mm [5.63 in] n 182.8 mm [7.19 in] n 132.0 mm [5.20 in] ?130.0 mm [5.12 in] ?131.5 mm [5.18 in] ?131.5 mm [5.18 in] feature type 8305-3411 type 8305-3111 type 8305-3112 depth rating* 3,000 metres 3,000 metres 3,000 metres operating frequency mf (18?36khz) mf (18?36khz) mf (18?36khz) mechanical construction aluminium-bronze aluminium aluminium transducer beamshape omni-direction al omni-directional directional transmit source level (db re 1pa @ 1m ) 185-192db (3 levels) 185-192db (3 levels) 190-202db (3 levels) receive sensivity (db re 1pa) 85-120db 85-120db 85-120db relative positioning accuracy* 5cm 5cm 5cm number of unique addresses (wideband) 224 224 224 battery life (listening, disabled) 833 days (alkaline) 1390 days (lithium) 833 days (alkaline) 1390 days (lithium) 833 days (alkaline) 1390 days (lithium) safe working load (4:1) n/a 250kg 250kg dimensions (l x dia) 1003mm x 132mm 1035mm x 143mm 1012mm x 183mm weight in air/water 43kg/30.5kg 22.8kg/11.6kg 26kg/13.6kg endcap sensors and options temperature (0.1 c) standard standard standard tilt switch (30-45) standard standard standard strain gauge pressure sensor ( 0.1%) standard standard standard high precision strain gauge (0.01 %) optional optional optional quartz pressure sensor (0.01%) 1350m, 2000m, 3000m, 6000m optional optional optional high accuracy inclinometer range: 90, accuracy: 0.05 over 0 - 15; 0.2 over 0 - 45 optional optional optional sound velocity (0.06m/s) optional optional optional release mechanism not available standard standard *dependant on fitted sensor **depen ds on knowledge of sound speed
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