7970 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 Super Sub-Mini Transponder/Responder (SSM)
Description
Sonardyne’s range of Super Sub- Mini Transponder/Responders (SSMs) represent the latest design developments in the acoustic positioning of ROVs, towfish and other subsea targets. The Type 7970 Super Sub-Mini is designed for deepwater applications up to 4,000 metres and has a high- power directional transducer with an acoustic output comparable to Sonardyne's most powerful Compatt transponders. For improved positioning accuracy, a built-in pressure transducer provides depth; this can be telemetered to Sonardyne's USBL systems as part of the positioning cycle. A dual external channel selection control, or serial data link, allows the SSM to be used with all of the popular acoustic navigation systems. The unit's 'bilingual personality' mode automatically senses the type of positioning system interrogating it and switches mode accordingly. In addition, Super Sub-Minis now support more Sonardyne frequencies and all HPR 300 and HiPAP® channels. The Type 7970 is available with either 2,000 metre or 4,000 metre rated depth sensors. Key features
- Depth telemetry capability with choice of 2,000 or 4,000 Metre rated sensors
- 1,000 Metre rated SSM also available
- Directional transducer with class leading acoustic power output
- Channel selection via dual external controls or serial data port by PC
- Long-life, fast charging NiMH battery
- Compact and rugged design
- Windows based software for test and setup
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 Super Sub Mini Transponder/Responder (SSM) Feature Type 7970 (2,000 Metre Version) Type 7970 (4,000 Metre Version) Depth Rating 2,000 Metres 4,000 Metres Operating Frequency MF (19-36kHZ) MF (19-36kHZ) Transducer Beamshape +/-45º (-10dB), +/-30º (-6dB), +/-20º (-3dB) Transmit Source Level (dB re 1µPa @1m) 202dB 202dB Receive Sensitivity (dB re 1µPa) <95dB <95dB Quiescent Life 42 Days 42 Days Maximum Update Period 750ms 750ms Number of Replies Responder Transponder Unlimited 45,000 Unlimited 45,000 Depth Telemetry Yes Yes Power Supply Long life NiMH battery or External 24v via ROV’s umbilical Long life NiMH battery or External 24v via ROV’s umbilical Mechanical Construction Aluminium Alloy, Hard Anodised Aluminium A lloy, Hard Anodised Weight in Air 4.5kg 4.5kg Weight in Water 2.4kg 2.4kg
Ordering Information
Type 7970-000-01 2,000m Super Sub-Mini Type 7970-000-02 4,000m Super Sub-Mini Type 7970-054 Responder Lead (5 meters) Type 7972 SSM Charger/Interface Kit