Autonomous Monitoring Transponder [8305]

autonomous_monitoring_transponder_product

A long life Acoustic Monitoring Transponder (AMT)

A 3,000 metre rated Acoustic Monitoring Transponder (AMT)

AMTs ready for deployment into seabed frames using an ROV

A long life AMT being deployed for a six year survey

An ROV inspects the as-laid�seabed position on an AMT

Monitor is the software that guides the user through the steps in creating a new autonomous logging project

Overview

Key Features: Incorporates Sonardyne's 6G® Technology; Incorporates Sonardyne's Wideband 2® signal Technology; 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; 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
Datasheet: Autonomous Monitoring Transponder
Quick Start Guides: Transponder Battery Replacement; Transponder Firmware Upgrade Guide
Related Articles: Sonardyne - Connecting you to your subsea world; Subsea 7 deploys AMTs for pipeline creep survey; Left to their own devices: Transponder technology moves toward autonomy

The Type 8305 AMT is a long-endurance Compatt 6 based transponder that is extensively used for subsea survey tasks and is capable of autonomously acquiring acoustic ranges and sensor data without surface control.

The data is time-stamped and logged internally for recovery via the integrated high-speed acoustic telemetry modem. This autonomy allows measurements to be made over a long period of time without requiring a surface vessel or ROV to command the process. This enables new applications that save vessel and survey time so reducing cost and risk.

Precision pressure, temp, sound velocity and dual-axis inclinometer sensors 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. Sampling regimes can be re-programmed and recovery of all data can be achieved via the acoustic telemetry link.

The AMT has many of the same acoustic functions as Compatt 6. It operates in the Medium Frequency (MF) band and is fully Sonardyne Wideband® 2 compatible.

The AMT is available with a range of omni and directional transducers, depth ratings and pressure housings dependent on deployment duration and application. Additional external sensors can be easily integrated via the power and communications port.

Specifications

Feature	Type 8305-3411	Type 8305-3111	Type 8305-3112
Depth Rating*	3,000 Metres	3,000 Metres	3,000 Metres
Operating Frequency	MF (18–36 kHz)	MF (18–36 kHz)	MF (18–36 kHz)
Mechanical Construction	Aluminium-Bronze	Aluminium	Aluminium
Transducer Beamshape	Omni-Directional	Omni-Directional	Directional
Transmit Source Level (dB re 1µPa @ 1m)	186-196 dB (4 Levels)	190-202 dB (4 Levels)	190-202 dB (4 Levels)
Receive Sensivity (dB re 1µPa)	90-120 dB (7 levels)	80-120 dB (7 levels)	80-120 dB (7 levels)
Ranging Precision	Better than 15 mm	±5 cm	±5 cm
Number of Unique Addresses (Wideband)	224	Better than 15 mm	Better than 15 mm
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	250 kg	250 kg
Dimensions (L x Dia)	1003 mm x 132 mm	1035 mm x 143 mm	1012 mm x 183 mm
Weight In Air/Water	35 kg/24.5 kg	22.8 kg/11.6 kg	26 kg/13.6 kg
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%)· Presens or Keller	Optional	Optional	Optional
ParoScientific DigiQuartz 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 (±0.017m/s)	Optional	Optional	Optional
Release Mechanism	Not Available	Standard	Standard

*Dependant on fitted sensor **Depends on knowledge of sound speed

Support

Instrument Firmware
AMT - CPU Firmware	V3.03.03.13
AMT - DAS	V2.05T

Technical Bulletins

Title	Description
AMT 6 Unresponsive when Enabled in HPR and Configured to Address 31xx/63xx and CIS0. No: 12-005	An issue has been identified whereby the transponder can become unresponsive if enabled in common interrogation (CIS) and tracking/serially configuring in HPR mode.

Manuals

Manual Type Definitions: AM = Application Manual; CL= Command Language Manual; IM = Installation Manual; MM = Maintenance Manual; OM = Operation Manual; SM = System Manual; TM = Training Manual; UM = User Manual

To request a manual simply tick the box next to the manual you require and then press the Request Form button. You will then be able to request addition manulas for other products and your request will be emailed to our Customer Support Team who will reply to your enquiry. Alternatively please contact your local office who will be more than happy to help.

Type 8305	UM8300 - Issue A, Revision 4
Transponder Battery Replacement	QSG - Issue A, Revision 0
Transponder Firmware Upgrade Guide	QSG - Issue A, Revision 1

Related Products

Delivering Trusted Solutions For Subsea Acoustics

Products » All Products (A-Z) » Instruments » Autonomous Monitoring Transponder [8305]

Technical Bulletins