Patented Acoustic Lens Technology
Effectively corrects acoustic refraction caused by oil-filled acoustic windows, ensuring sharp and clear images.

The Kongsberg 1171 Series Clariscan Sonar (Model P/N 975-21190000) is a 4000m-class multi-frequency imaging sonar specifically designed for deep-sea applications. It integrates a wide bandwidth composite transducer with patented acoustic lens technology, effectively solving the beam defocusing problem caused by temperature and depth variations in traditional oil-filled acoustic windows. This maintains beam focus under various harsh conditions, delivering unprecedented high-definition imaging quality.
This sonar supports RS485 and RS232 communication interfaces, with automatic detection and configuration upon startup. Users can flexibly control the sonar and visualize data through MS1000 software, making it an ideal tool for deep-sea exploration, high-precision underwater scanning, and scientific research.

Effectively corrects acoustic refraction caused by oil-filled acoustic windows, ensuring sharp and clear images.
Supports 300-600 kHz and 605-1200 kHz frequency bands, continuously adjustable in 5 kHz steps, adapting to various detection scenarios.
Built-in 8 commonly used frequency presets, covering 330 kHz to 1100 kHz, meeting different resolution and range requirements.
Supports 360° continuous scanning, and customizable sector areas for flexible task adaptation.
Communication rate can be automatically or manually optimized between 9600 bps and 921 kbps, ensuring stable data transmission.
Pressure rated to 4000 meters depth, key components made of corrosion-resistant materials such as aluminum bronze and titanium, suitable for extreme deep-sea environments.

Provides high-definition acoustic images within 4000m depth range, supporting target search and identification.
Used for deep-sea pipeline inspection, underwater facility condition assessment, and engineering support.
Provides high-quality acoustic vision for underwater platforms, ensuring navigation and operational safety.
Provides reliable high-definition acoustic data for marine geology, environmental, and biological research.
| Category | Parameter | |
| Performance Parameters | ||
| Frequency Range | Low Frequency Model: 300–600 kHz* ; High Frequency Model: 605–1200 kHz, adjustable in 5 kHz steps (supports CW and LFM modes) | |
| Preset Frequencies |
330, 450, 600, 675, 800, 900, 1000, 1100 kHz |
|
| Beam Width |
2.7°×26° (@330kHz), 2.2°×19° (@450kHz), 1.6°×16° (@600kHz), 1.4°×36° (@675kHz), |
|
| Maximum Range |
300m (@330 kHz),100m (@675 kHz),50m (@1000 kHz) |
|
| Minimum Range |
0.5 m |
|
| Range Resolution |
≥ 3.75 mm(Variable, depends on transmitted pulse width) |
|
| Sampling Options | Sampling Options: 238, 476, 952, 1904 (Low Resolution, High Resolution, Zoom ×2, Zoom ×4) | |
| Scan Speed (Typical) | 3.7 seconds/360° (@5m range, 1.8° step); 34 seconds/360° (@100m range, 1.8° step) | |
| Scan Angle | 360° continuous (user-configurable sector scan) | |
| Step Angle |
0.45° – 7.2°(User Selectable) |
|
| Interface and Electrical | ||
| Communication Interface | RS485 or RS232 (auto-detecting and configuring) | |
| Data Link | Downlink/Uplink: 9600 bps to 921 kbps (user-selectable or auto-optimizing) | |
| Power Requirements |
22–26 VDC @ ≤ 0.8 A |
|
| Mechanical and Environmental | ||
| Operating Depth |
4000 m |
|
| Operating Temperature | -10°C to +40°C | |
| Storage Temperature |
-30°C to +40°C |
|
| Connector |
Seacon RNG-4-BCL(Optional based on customer requirements) |
|
| Materials | Aluminum 6061-T6, 300 Series Stainless Steel, Polyurethane | |
| Surface Treatment | Anodized (Black/Blue), compliant with MIL-A-8625 type II standard | |
| Dimensions (excluding connector) | Diameter 130 mm × Length 292 mm | |
| Weight | 4.1 kg (in air); 1.8 kg (in seawater) | |