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The Type 8070 Dual Release Wideband Sub-Mini (WSM) is a 4,000 metre rated transponder/ responder designed for positioning seabed equipment packages, ROVs, towfish and other subsea targets.
This versatile and compact unit features a high-power directional transducer and incorporates Sonardyne Wideband® Technology which offers superior ranging accuracy, operation in a multi-user, multi-vessel environment and fast USBL position updates.
In addition to supporting new Sonardyne Wideband® signals, all WSMs also support traditional Sonardyne tone and HPR 300 and HiPAP® channels. A link allows the WSM to be configured for use with all of the popular acoustic navigation systems.
The Type 8070 External Release WSM differs from standard WSMs in that it has the ability to activate an external release mechanism in order to recover the WSM and any equipment package that it maybe attached to, back up to the surface.
Two external release options are available; a dual contact closure actuation where the power for the release mechanism is provided externally to the WSM (Version 04) or a dual voltage output where the battery voltage of the WSM is used to drive the release directly (Version 08). This version is compatible with Sonardyne's Type 8083-000-01 release mechanism. The type of release function required must be specified at the time of ordering. The depth sensor fitted to standard WSMs is not available on the 04 or 08 version units.
WSMs are also available in 1,000 metre and 4,000 metre versions without an external release capability.
| Feature | Type 8070-000-04 | Type 8070-000-08 | |
|---|---|---|---|
| Depth Rating | 4,000 metres | 4,000 metres | |
| Operating Frequency | MF (19-36kHz) | MF (19-36kHz) | |
| External Release Type (XR) | Dual Contact Closure (CC) Rated at 0.3A 125V AC, 1A 30V DC Max 125V AC, 60V DC Closure period 29 seconds |
Dual Voltage Output (VO) Nominally 18V, 300mA for 29 seconds Motor stall sensing at 600mA reverses O/P for 2 seconds |
|
| Operating Channels | All Sonardyne Wideband/Tone HPR 300 & 400 Channels |
All Sonardyne Wideband/Tone HPR 300 & 400 Channels |
|
| Transducer Beamshape | Directional | Directional | |
| Transmit Source Level (dB re 1µPa @ 1m) | (External Power) (Battery – High Power) (Battery – Low Power) |
202dB 199dB 196dB |
202dB 199dB 196dB |
| Receive Sensivity (dB re 1µPa) | High Gain Low Gain |
||
| Power Supply | Long-Life Ni MH battery or ext. 24V via ROV's umbilical |
Long-Life Ni MH battery or ext. 24V via ROV's umbilical |
|
| Number of Replies (Responder*) | Unlimited with External Power | Unlimited with External Power | |
| Depth Sensor | Not Available | Not Available | |
| Maximum Update Period | 750ms | 750ms | |
| Quiescent Life | 60 Days | 60 Days | |
| Mating Connections (Bulkhead connector) | Subconn MCIL8M | Subconn MCIL8M | |
| Mechanical Construction | Aluminium Alloy, Anodised | Aluminium Alloy, Anodised | |
| Dimensions (LxDia) | 408mm (16.1”) x 95mm (3.7”) |
408mm (16.1”) x 95mm (3.7”) |
|
| Weight in Air | 5.0kg | 5.0kg | |
| Weight in Water | 2.6kg | 2.6kg | |
| Battery Charger | 7972-000-03 | 7972-000-03 | |
| Instrument Firmware | |
|---|---|
| Wideband Sub-Mini (all types) | V2.07 |