Illustration of a buoy and land based NexSens system in a wetlands. Both systems are equipped with solar panels.

2.5 Power and Solar Charging

With remote monitoring also comes the need for an autonomous, efficient power supply to ensure the continuous operation of sensors, data loggers, and telemetry equipment. Systems installed at or near existing infrastructure can receive power from the electrical grid.  However, fixed power supplies are not available in many applications, so alternative means are required. In […]

Read More

Replace a Battery in a CB-Series Data Buoy (CB-X3L Lid)

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 […]

Read More

Performing a Measurement System Power Budget

Analyzing a measurement system power budget is a useful practice to help ensure that a proposed system design will meet the monitoring objectives and reliably deliver data. To aid with this, NexSens has developed a power budget tool which can quickly estimate the expected power performance of systems using the most common NexSens buoy platforms, […]

Read More

X2-SDLMC/X3-SUB Port Pinout

The X2-SDLMC & X3-SUB data loggers include a series of ports with MCIL connectors. The port pinout information is given below.     8-Pin Sensor Port Signal Information Note: All splitter extensions contain the same pinout and signal configuration; however, only one 232 sensor can be connected to each splitter/port. The arrow on the 2-way […]

Read More

Apply Power to the X2-SDL

The X2-SDL has flexible power input choices that provide several options in terms of type and number of power sources.     Basic Requirements  5-24 VDC [+/-10%] (Reverse polarity protected) Current Draw (Typical @ 12VDC): Low power sleep: 350uA; Logger Active: 35mA; Wi-Fi Transmitting: 43mA; Cellular Transmitting: 300mA Peak Current: 500mA @ 12V for 1 […]

Read More

Cycle Power

Performing a power cycle on an SDL data logger such as the X2-SDL is often useful for troubleshooting purposes. To cycle power on an SDL: Locate the white battery lid at the top of the SDL. Rotate the cap counter-clockwise to remove it. Note: Due to the double O-ring lid seal, this will take significant […]

Read More

At what voltage should batteries be replaced?

Depending on the total power demand of an X2-SDL system, the minimum acceptable operation voltage can vary. Factors such as the number and types of connected sensors, logging interval, transmission interval etc. influence the required power supply. A general rule of thumb is to consider replacing the X2-SDL’s (16) D-Cell batteries when the voltage falls […]

Read More

Install Batteries in the X2-SDL Data Logger

The battery compartment of the X2-SDL data logger accommodates (16) D-Cell Alkaline batteries for system power.  These batteries should be replaced once the reported secondary power falls to 8V to avoid data collection interruption. Locate the white battery lid at the top of the X2-SDL. Rotate the lid counter-clockwise to remove it. Note: Due to […]

Read More

Verify Battery Voltage of a CB-Series Buoy

Use a DC volt/multimeter to verify the battery voltage of a CB-Series data buoy on the UW-6 (6-pin) SOLAR port on the data well top plate. This method works for both user-supplied battery systems with CB-PTL pass-through lid and NexSens-supplied CB-A01 and CB-A05 SLA battery systems. Measure the voltage between pins 3 (V+) and 4 […]

Read More

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 […]

Read More