Ballast weight may be needed to prevent overturning a buoy system and ensure stability in the water. The center of gravity of NexSens data buoys is near the water surface without instruments connected. Therefore, any top-side weight added above the water’s surface (e.g. navigation aids, sensors, sensor mounts) must be appropriately counterbalanced by ballast weight below […]
Articles Tagged: data buoys
Buoy Ballast Weights
The table below indicates the minimum recommended buoy ballast weights for each NexSens data buoy, assuming no additional topside weight and calm environmental conditions. Included instrument cages mounted to the buoy frame help stabilize the buoy and provide a deeper location for mounting additional weight. The small model instrument cage (10 lbs.) is included with […]
Replace a M650 Beacon Battery
Remove the beacon from the top of the buoy solar tower by removing the three top-facing bolts using a 7/16″ socket wrench. Invert the beacon. Remove the small Phillips screw holding the cover in place and turn it counterclockwise. Lift up on the cover to remove it. Press down on the […]
Replace Desiccant
Each X2-CB/X2-CBMC ships with a bag of desiccant inside the logger enclosure. This desiccant bag should be replaced whenever: The X2-CB/CBMC enclosure is opened. The Internal Humidity diagnostic parameter reads 50% or greater. Caution!!!- Be sure to statically ground yourself prior to touching any of the electronics inside the X2 logger! Any appropriately-sized […]
Data Buoy Storage Requirements
The following buoy storage requirements are required when storing a CB-Series data buoy with an X2-CB data logger: Storage Requirements Store the buoy in a dry environment that is kept above freezing. A climate-controlled location may be necessary. Extremely cold temperatures can negatively impact the performance of the batteries. Cold or excessively fluctuating storage temperatures […]
Replace a Battery in a CB-Series Data Buoy
The 12V sealed lead acid (SLA) batteries installed in the data well of CB-Series buoys may require replacement when the charge falls below ~10V or every 2-3 years as their integrity declines with age. This guide shows the steps to replace the A05 12V 28 A-Hr battery commonly equipped in harnesses with one to four […]
Apply Power to the X2-CB
The X2-CB has an innovative power design that allows for simple connectivity and interfacing with sensors on NexSens CB-Series buoys. Power Jumper CB-Series solar towers have a special UW-6 plug with a jumper built in that completes the circuit for the battery to supply power to the X2-CB data logger. The X2-CB will not receive […]
Remove an X2-CB for repair
If an X2-CB data logger needs to be sent in for evaluation or repair, please reference the following steps for removal: Tools Required 9/16″ Socket Wrench Instructions Disconnect the 6-pin solar panel or UW-6 USB cable from the X2-CB/X2-CBMC SOLAR/COM port to remove power from the data logger. [For CB-150/250/450 buoys only] […]
UW-6 Power Bulkhead Connector Assembly Wiring
CB-Series Buoys supplied with a CB-PTL Pass-Through Lid for integration of user-supplied electronics include a UW-6 power bulkhead connector (UW6-BULK) port on the lid. The UW6-BULK connects to the solar tower on the outside of the buoy and has bare wires with Molex connector on the inside of the data well. Information regarding the port […]
Increase Flash Intensity
The minimum and maximum flash brightness settings of a M550 beacon are dependent on the configured flash code. For the 066 flash code typically set on NexSens-supplied beacons, the maximum effective intensity that can be set is 20cd as demonstrated by Carmanah’s table below. A complete listing of Flash Codes is available in Carmanah’s manual […]