8305-3112

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 timestamped and logged internally for recovery via the integrated highspeed acoustic telemetry modem. The autonomy allows measurements 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 settlement 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 hardanodised 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 Autonomous Monitoring Transponder (AMT) n132.0 mm [5.20 in] 1003.0 mm [39.49 in] 8305-3411 143.0 mm [5.63 in] Ø130.0 mm [5.12 in] 1034.4 mm [40.72 in] 8305-3111 n182.8 mm [7.19 in] Ø131.5 mm [5.18 in] 1009.8 mm [39.76 in] 8305-3112 Ø131.5 mm [5.18 in] Feature Depth Rating* Operating Frequency Mechanical Construction Transducer Beamshape Transmit Source Level (dB re 1µPa @ 1m) Receive Sensivity (dB re 1µPa) Relative Positioning Accuracy* Number of Unique Addresses (Wideband) Battery Life (Listening, Disabled) Safe Working Load (4:1) Dimensions (L x Dia) Weight In Air/Water Endcap Sensors and Options Temperature (±0.1°C) Tilt Switch (±30-45°) Strain Gauge Pressure Sensor (±0.1%) High Precision Strain Gauge (±0.01%) Quartz Pressure Sensor (±0.01%) 1350m, 2000m, 3000m, 6000m Type 8305-3411 3,000 Metres MF (18–36kHz) Aluminium-Bronze Omni-Directional 185-192dB (3 Levels) 85-120dB ±5cm 224 833 days (Alkaline) 1390 days (Lithium) N/A 1003mm x 132mm 43kg/30.5kg Type 8305-3111 3,000 Metres MF (18–36kHz) Aluminium Omni-Directional 185-192dB (3 Levels) 85-120dB ±5cm 224 833 days (Alkaline) 1390 days (Lithium) 250kg 1035mm x 143mm 22.8kg/11.6kg Type 8305-3112 3,000 Metres MF (18–36kHz) Aluminium Directional 190-202dB (3 Levels) 85-120dB ±5cm 224 833 days (Alkaline) 1390 days (Lithium) 250kg 1012mm x 183mm 26kg/13.6kg Standard Standard Standard Optional Optional Optional Optional Not Available Standard Standard Standard Optional Optional Optional Optional Standard Standard Standard Standard Optional Optional Optional Optional Standard High Accuracy Inclinometer Range: ±90°, Accuracy: ±0.05° over 0 - ±15°; ±0.2° over 0 - ±45° Sound Velocity (±0.06m/s) Release Mechanism *Dependant on fitted sensor **Depends on knowledge of sound speed Specifications subject to change without notice – 01/2009