7801 SONARDYNE | Alldatasheet
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Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. sales@sonardyne.com www.sonardyne.com Datasheet Compatt Mk4 EHF (Discontinued)
Description
The COMPuting and Telemetering Transponder (Compatt) is a microcomputer controlled subsea transponder used for acoustic navigation and positioning. The EHF system is suitable to a wide range of tasks such as underwater measurement, remote control and monitoring. The Type 7801 Compatt Mk4 is the Extra High Frequency (50-110 kHz) version of Sonardyne’s fourth generation family of transponders built to complement the existing range of Long Baseline products. Its lightweight design permits easy sub- sea installation and removal by divers and ROVs making it an ideal tool for use in spoolpiece measurement applications. Key Features
- Sequential mode operation with twelve individual channel frequencies
- Simultaneous receiver card for high speed positional updates fitted as standard
- Unique addresses allow up to 768 Compatts to be used in close proximity
- Programmable address codes
- Conventional Enable and Disable commands for normal transponder operation
- Advanced telemetry facility replies to all commands with Compatt address, confirmation of command executed and error-checking
- Direct measurement of baselines between Compatts greatly improves array calibration accuracy
- Baseline measurement 20 mm
- Temperature and depth measurements allow sea-bed sound velocity evaluation
- Battery check records remaining battery capacity and time since last charge
- Remote status Monitory
- Cycle mode permits up to eight preset commands to be executed on receipt of one command
- Internal tilt sensor ±45°
- Battery count auto-disable at 90% battery pack usage.
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 - 10/2006 Specifications Compatt Mk4 EHF (Discontinued) Feature Type 7801 Depth Rating 2,500 Metres Operating Frequency EHF (50-110kHz) Transducer Beamshape Omni-Directional Maximum Acoustic Range 1Km Relative Positioning Accuracy 0.02–0.15m Transmit Source level (dB re 1µPa @1m) 190dB Receive Threshold (dB re 1µPa) 90 - 125dB Quiescent Life 1071 days (Alkaline) 1786 days (Lithium) 89 days (Ni-Cad) Dimensions (LxDia) 1132mm x 178mm Weight in Air 24.1kg Weight in Water 11.2kg Endcap Sensors (Fitted as Standard) Temperature (PRT), Tilt switch (±30-45°), Depth (Strain Gauge Pressure transducer), Conductivity, Power for external sensors