Introducing the D270: A Cutting-Edge Portable Echosounder
The D270 stands out as a versatile, portable echosounder designed for seamless integration into Unmanned Surface Vehicles (USVs). This device is ideal for a range of precise bathymetric survey tasks, including river cross-section analyses and evaluations of reservoir capacities. One of its key features is a built-in water temperature sensor, which facilitates real-time adjustments to sound velocity, significantly improving the accuracy of depth measurements.
Advanced Features and User-Kind Interface
Powered by a Linux operating system, the D270 offers an intuitive web-based interface for configuration and chart plotting. With 8GB of internal memory, it can store extensive bathymetric survey data. The OLED display provides users with a detailed overview of essential metrics, such as voltage levels, water depth, and GNSS satellite tracking, along with more specific data on water temperature, sound velocity, and draft measurements.
Connectivity and Compatibility
This echosounder supports both Bluetooth and Wi-Fi connections, allowing for optional wireless integration with a GNSS RTK receiver, enhancing its functionality in various survey environments.
| Operating Frequency | 200 kHz |
| Beam Width | 6.5°±1° (200 kHz) |
| Depth Measurement Range | 0.15 m to 200 m |
| Measurement Resolution | 0.01 m |
| Measurement Accuracy | ± 0.01 m + 0.1% x D (where D = water depth) |
| Maximum Sampling Rate | 30 Hz |
| Sound Velocity Adjustment Range | 1300 m/s to 1700 m/s |
| Maximum Transmit Power | 300 W |
| Power Consumption | 10 W |
| External Power Supply | 10-36 V DC / 100-240 V AC |
| Operating System | Linux |
| Web Access | Compatible with PC/Mobile web pages and Android APP |
| Dialog Ports | RS232 / Network port / Transducer port |
| Wi-Fi Standard | 802.11n – 2.4 GHz |
| Bluetooth Version | BT5.0, backward compatible with BT2.X |
| Data Formats Supported | CHCNAV, NAME SDDPT/SDDBT, Original waveform |
| Storage Capacity | 8 GB, capable of storing water depth data |
| Voice Alerts | Includes shallow water notifications |
| Water temperature Sensor Range | -55°C to +125°C, enabling real-time sound speed corrections |
| dimensions (L x W x H) | 25.7 cm × 12 cm × 6.4 cm (transducer) |
| Weight | 0.84 kg (host), 2.15 kg (transducer) |
| Environmental Conditions | Operating temperature: -20°C to +60°C (-4°F to +140°F); Storage temperature: -40°C to +70°C (-40°F to +158°F) |
| Ingress Protection Rating | IP67 |
| Construction Material | Aluminum Alloy |
| Display Type | 1.46 inch OLED, resolution 128 x 128 |
