Knowledge Base

Sensor(s) Not Found During X2 Auto-Detection


If an X2 data logger fails to detect a connected sensor following the completion of the auto-detection process, verify the following:

  1. Check for proper wiring of sensor signals and seating of all cable connections.
  2. Verify that the detection script for the sensor has been developed, loaded onto the X2, and enabled to run.
  3. Confirm the required configuration settings for each sensor.
    1. Assign each SDI-12 or Modbus sensor a unique addresses to avoid conflicting with one another.
    2. Connect each RS-232 sensor to a unique port to avoid conflicting with another RS-232 sensor (1 sensor to P0, 1 sensor to P1, 1 sensor to P2).
    3. For multi-parameter sensors, confirm parameter outputs and/or the data formats using manufacturer software.
    4. Many highly customizable sensors, such as a current profiler or wave sensor, require setting the instrument into a ‘deployment mode’ before external communications will work.
  4. Verify sufficient 12VDC power supply to the X2.
    1. The X2 Diagnostic (USB 5V) cable power, for example, may not provide enough current to properly power up certain sensors. This will therefore prevent them from responding during the detection process.
    2. Old, damaged, or insufficiently charged SLA-type batteries may be unable to output the system current required for detection.

Once all of the above have been verified, re-run sensor detection. Contact NexSens Technology for further assistance if X2 auto-detection still fails to identify and connected sensors.