Reson SeaBat 7125

Name: Reson SeaBat 7125
Brand: RESON
SKU: 1932

Dual-Frequency Multibeam Echosounder

Description

The RESON SeaBat 7125 is a multibeam echosounder for bathymetric surveys, operating at 200 kHz or 400 kHz with dual frequency available. It is offered in three configurations that use the same transducer set: the 7125-SV2 for surface vessels, the 7125-ROV2 for ROVs and the 7125-AUV for AUVs.

The SeaBat 7125 forms 512 beams (EA/ED) at 400 kHz and 256 beams at 200 kHz, with a maximum ping rate of 50 Hz (±1 Hz), pulse length of 33–300 µs and depth resolution of 6 mm. Along-track transmit beamwidth is 2° at 200 kHz and 1° at 400 kHz, and across-track receive beamwidth is 1° at 200 kHz and 0.5° at 400 kHz. Typical depth is 0.5–150 m at 400 kHz and 0.5–400 m at 200 kHz, and maximum depth is 175 m at 400 kHz and 450 m at 200 kHz. The datasheet states compliance with IHO SP44Ed5 over the entire depth range.

Listed features include real-time roll stabilisation, variable and steerable swath, and simultaneous output of bathymetry, sidescan, snippets backscatter and raw water column data in 7K data format. The maximum swath angle is given as 140° (165°), and FlexMode is optional. Operating temperature is −2 to +35 °C.

The 7125-SV2 has a surface transceiver with integrated multiport card, runs on 111/220 VAC (500 W average), uses a 25 m transducer cable and has a system depth rating of 25 m; it is available with RESON PDS2000 software pre-installed. The 7125-ROV2 runs on 48 V DC (200 W max), includes a 6000 m rated titanium interface bottle and has a 6000 m system depth rating. The 7125-AUV runs on 48 V DC (110 W max), has its electronics on an aluminium frame and offers an optional 6000 m rated titanium electronics housing.

Technical Specification

Frequency: 200 kHz or 400 kHz (dual frequency available)
Along-track transmit beamwidth: 2° at 200 kHz, 1° at 400 kHz
Across-track receive beamwidth: 1° at 200 kHz, 0.5° at 400 kHz
Max ping rate: 50 Hz (±1 Hz)
Pulse length: 33–300 µs
Number of beams: 512 EA/ED at 400 kHz, 256 EA/ED at 200 kHz
Max swath angle: 140° (165°)
Typical depth: 0.5–150 m at 400 kHz; 0.5–400 m at 200 kHz
Max depth: 175 m at 400 kHz; 450 m at 200 kHz
Depth resolution: 6 mm
Data output: Bathymetry, sidescan and snippets, 7K data format; raw water column data
IHO compliance: IHO SP44Ed5 over entire depth range
Roll stabilisation: Real-time
Operating temperature: −2 to +35 °C
FlexMode: Optional
Power requirement (7125 SV2): 111/220 VAC, 50/60 Hz, 500 W average
Power requirement (7125 ROV2): 48 V DC (±10 %), 200 W max
Power requirement (7125 AUV): 48 V DC (±10 %), 110 W max
Transducer cable length (7125 SV2): 25 m standard
Transducer cable length (7125 ROV2 / AUV): 3 m standard; 10 m (optional)
LCU to processor cable length (7125 ROV2): 25 m (ST), 6 m, 5 m (pigtail)
System depth rating: SV2: 25 m; ROV2: 6000 m; AUV: 6000 m (optional)
Components (7125 SV2): EM 7216 receiver, TC 2181 dual frequency 200/400 kHz projector, SV transceiver with monitor, keyboard and pointer device
Components (7125 ROV2): EM 7216 receiver, TC 2160 400 kHz projector, TC 2163 200 kHz projector (optional), 7-Link control unit, sonar processor unit with monitor, keyboard and pointer device
Components (7125 AUV): EM 7216 receiver, TC 2160 400 kHz projector, TC 2163 200 kHz projector (optional), 7-I integrated control and processor unit
TC 2181 DF 200/400 kHz projector (H × W × D, weight): 87 × 93 × 280 mm; 4.5 kg in air, 3.4 kg in water
TC 2160 400 kHz projector (H × W × D, weight): 77 × 62 × 285 mm; 2.7 kg in air, 1.7 kg in water
TC 2163 200 kHz projector (H × W × D, weight): 115 × 100 × 280 mm; 7.5 kg in air, 5 kg in water
EM 7216 200/400 kHz receiver (H × W × D, weight): 137 × 496 × 102 mm; 10.7 kg in air, 5.7 kg in water
Surface transceiver (H × W × D, weight): 5U × 19-inch × 557 mm; 20 kg in air
LCU bottle (H × Ø, weight): 530 mm × Ø174 mm; 15.7 kg in air, 5.2 kg in water
ICPU frame (H × W × D, weight): 172 × 166 × 497 mm; 10 kg in air
Sonar processor (H × W × D, weight): 5U × 19-inch × 630 mm; 30 kg in air
Software: RESON PDS2000, available pre-installed and configured (7125-SV2)
Options: Mounting bracket with fairing; SVP-70 sound velocity probe with 25 m cable; extended warranty/support and maintenance contracts; fibre-optic conversion for ROV installations (optional)

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Download Datasheet