The color of the LED indicator on the Vernier Go Direct® Sensors can represent a variety of statuses for the units (detailed below):
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Charging the Sensor |
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Blue LED solid |
Charging |
Sensor is connected to the Micro USB Cable or Charging Station. |
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Blue LED off |
Fully Charged |
Charging is complete. |
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Powering the Sensor |
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Red LED flashes |
Turning on the sensor |
Red LED indicator flashes when sensor is on and not connected to Lt.
To initiate, press button once. |
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Red LED off |
Putting the sensor in sleep mode |
Red LED indicator stops flashing when sleeping.
To initiate, press and hold button for more than three seconds to put into sleep mode. |
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Connecting the Sensor |
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Blue and Green LED solid |
Connected and charging |
Sensor is connected to Lt via USB and is charging. (Green LED indicator is obscured by the blue LED indicator.)
The sensor is ready to sample or is currently sampling. |
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Green LED solid |
Connected, fully charged |
Sensor is connected to Lt via USB and the sensor is fully charged.
The sensor is ready to sample or is currently sampling. |
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Troubleshooting the Sensor |
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Red LED flashes |
Looking for a connection |
The sensor is not connected to GA or kCDA.
Potentially the kCDA is not recognizing the sensor as expected, and/or the sensor does not recognize the kCDA as expected. |
If you experience persistent Red LED flashes, an error message indicating “Sampling equipment not found” may appear (see below):
Selecting “Reset Hardware” will prompt a dialog box to open with a workflow to check through common problems and restart the kuraCloud Desktop application (kCDA).
You can also restart the kCDA by selecting 'Restart kuraCloud Desktop' on the kCDA tray icon. This will initiate kCDA to start automatically scanning and connecting to Go Direct® sensors for Lt sampling.
If the issue does not resolve, please:
- Confirm that you are using the most up-to-date kCDA on a PC. The latest kCDA can be downloaded and installed here.
- Verify that there are no pending Windows updates on the device.
- Try a different USB port or hub.
- Try a different USB cable.
For additional assistance with the Lt or the kuraCloud Desktop application (kCDA), please contact your local ADInstruments Technical Support Representative.