NexSens CB-75-SVS Wave Buoy

The CB-75-SVS Wave Buoy offers the latest in real-time wave observations in a compact, affordable, and easy to deploy platform.

Features

  • Measures wave height, period & direction
  • Designed for tethered moorings
  • Integrated SeaView Systems SVS-603HR wave sensor
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The CB-75-SVS Wave Buoy offers the latest in real-time wave observations in a compact, affordable, and easy to deploy platform. At 21” (53.34cm) hull diameter and 40 lb. (18.14kg) weight, it’s ideally suited for tethered moorings. The buoy accurately measures wave height, period, direction, and more using SeaView Systems’ industry-leading SVS-603HR sensor, relied upon in buoy networks by NOAA and many others throughout the world. External sensor ports with wet-mate connectors support GPS, meteorological, and water quality sensors for maximum flexibility.

The buoy is constructed of an inner core of cross-linked polyethylene foam with a tough polyurea skin. A rechargeable battery with integrated solar panels powers the wave buoy continuously, and all electronics are housed in a quick-removable waterproof package with wet-mate connectors. A removeable instrument cage serves as counter-ballast and supports instrument mounting, while three 1.5” (3.81cm) pass-through holes facilitate cable routing of underwater sensors.

Available with integrated 4G LTE or Iridium satellite communications, the CB-75-SVS Wave Buoy sends data in real-time to the cloud-based WQData LIVE datacenter. In the Basic tier, this free service allows users to securely access and analyze data, as well as share data through an auto-report. Subscription-based tiers of WQData LIVE are also available for generating custom alarms, exporting data through an API or custom NDBC/GLOS formats, and providing a publicly-accessible version of the project website.

Wave Sensor: SeaView Systems SVS-603HRi
Parameters: Hs Wave Height (Significant Wave Height), TP (DPD) Wave Period, Dominant Wave Direction, Mean Wave Direction (MWD), Te Energy Period, RMS Tilt Angle, Max Tilt Angle
Range: Wave Height: 0.2-20m; Wave Period: 1.5-20 seconds; Wave Direction: 0-360°
Resolution: Wave Height: 0.001m; Wave Period: 0.001 seconds; Wave Direction: 0.001°
Accuracy: Wave Height: +/- 0.5cm; Wave Period: <1%; Wave Direction: +/-2°

Buoy: NexSens CB-75
Hull Outer Diameter: 21” (53.34cm)
Hull Height: 13” (33.02cm)
Pass-Through Hole Diameter: 1.5" (3.81cm)
Tower Height: 8.2” (20.83cm)
Solar Panels: 3x 4-watts
Weight: 40 lb. (18.20kg)
Net Buoyancy: 75 lb. (34.00kg)
Hull Material: Cross-linked polyethylene foam with polyurea coating & stainless steel deck
Hardware Material: 316 stainless steel, 304 stainless steel (lifting handles)
Tethering Attachments: 3x 3/8” eye nuts

Data Logger: NexSens X3-SVS
Operating Temperature: -40°C to 70°C
Rating: IP68
User Interface: RS-485 to CONNECT Software via USB adapter; WQData LIVE Web Datacenter with optional wireless telemetry; Status beeps
Data Logging: 8 MB non-volatile flash memory (6 MB available)
Real Time Clock (RTC): <30sec/month drift1; Auto-sync weekly2; Internal backup battery
Log Interval: User configurable from 5-minute (20-minute default)3; Unique interval per sensor
Transmit Interval: User configurable from 5-minute (10-minute default)
Transmission Trigger: Time-based; Selective parameter upload option
Sensor Interfaces: RS-232 (2 Channels), SDI-12, RS-485, Pulse Count
Sensor Power: (2) independent switches from input supply4,5
Built-in Sensors: Temperature (-40° to 100°C, 0.016°C resolution, ±0.3°C accuracy); Humidity (0% to 100%, 0.03% resolution, ±4% accuracy from 5 to 95% RH & -20 to 70C); Battery voltage; System current
Sensor Ports: (2) MCBH-8-MP for sensor interface (RS-232, RS-485, SDI-12, Power, GND)
Power Port: (1) MCBH-6-FS for power and communication (12V Solar In, Power Switch, RS-485 Host, GND)
Telemetry Options: 4G LTE global cellular; Iridium satellite
Antenna Port: Type N female

Notes
1Assumes 25ºC operating temperature
2Requires the X3-SVS to be connected to the internet
3Minimum log interval dependent on sensor limitations and processing time
4Cumulative concurrent current limit of all three channels is 2A
5Logger power supply must be able to support current requirements of sensors

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CB-75-SVS wave buoy with global 4G LTE cellular telemetry
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CB-75-SVS wave buoy with Iridium satellite telemetry
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