Establish Direct Communication with a CB-x50 Buoy

    Sometimes it is desirable to connect a CB-iSIC directly to the PC for configuration, setup, testing, and troubleshooting. This can be accomplished with the included UW-USB-232P-NP cable. Connect the CB-iSIC to the PC by plugging the USB cable into the CB-iSIC’s COM port. The RTU module will need to be disconnected. Power the iSIC-CB by […]

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    Mounting CB-CCA Cage Clamp

    Overview The CB-CCA cage clamp accessory securely connects an instrument cage to the frame of a CB-Series data buoy system and prevents rotation or loosening of the cage. What’s Included (1) Cage security bracket (2) End plates (1) ¾” bolt, 4-½”, with pinhole (3) ¾” bolts, 4-½” (1) ¾” castle nut (3) ¾” nuts (4) […]

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    Opening RTU-C Cellular Telemetry Module

    The RTU-C cellular telemetry module may occasionally need to be opened for servicing the cell modem or installing a SIM card. Follow these steps to safely gain access to the modem:   1. Use a 3/16″ allen wrench or ball-point hex driver to remove the (4) hex cap screws that hold the top bulkhead onto […]

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    Installing or Replacing a CB-A0x-x Battery Harness

    CB-series data buoys may be equipped with a battery harness and solar regulator assembly inside the data well. The battery capacity (and thus the model of the battery harness) varies depending on the buoy model. The available options by buoy are as follows: CB-150: CB-A01-2 battery harness includes (2) A01 8.5 A-Hr batteries CB-450: CB-A05-1, […]

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    Securing Devices to Sensor Mooring Line

    Devices may be secured to 3/16″ vinyl-coated stainless steel mooring lines using MC-600 Instrument Mooring Clamps. 1. Identify the location on the mooring line where the clamp will be placed. Note: The clamp/sensor assembly should be positioned so that there is slack in the sensor cable when the instrument is secured. The entire weight of the assembly […]

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    CB-Series Data Buoy Mooring and Deployment

    This section contains only general information on the available mooring options for CB-series data buoys. To develop an effective mooring strategy, a variety of application-specific criteria must be thoroughly reviewed prior to deployment. Adverse weather conditions, water level fluctuations, currents and wave action, debris loads, and other factors can cause entanglement of mooring lines, submersion […]

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    CB-Series Data Buoy Ballast Weight & Stability

    To prevent overturning of a CB-series buoy system and to ensure that it is stable in the water, ballast weight may be needed. The center of gravity of the buoy is somewhere near the water surface without instruments connected. Any weight added above the water surface must be appropriately counterbalanced by adding ballast weight below […]

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    CB-Series Data Buoy Wiring & Device Connections

    NexSens CB-Series data buoys (CB-150, CB-450, CB-650, CB-950, CB-1250 and CB-1450) consist of a buoy hull with internal data well and lid with solar panel assembly. The data well lid is available with the option to be wired with an integrated NexSens iSIC data logger (part number iSIC-CB) or to be provided with pass-through fittings […]

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    Attaching an Instrument Cage to a Buoy

    Install Instrument Cage CB-series data buoys allow for an instrument cage to be installed on the bottom for stability and/or mounting of sensors.   1. To install the cage, first remove the 3/4”-10 x 4” bolt, 3/4” lock washer and 3/4”-10 castle nut from the cage or buoy frame. 2. Run the bolt downward through […]

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