How to diagnose and resolve issues causing a Late Reading Alarm.
A late reading alarm indicates that the Node is behind schedule in reporting its next reading and is therefore marked as offline.
This alarm could be caused by a number of issues including:
- Device is powered off
- Poor cellular reception
- A cellular network outage or other related communications outage
- Low battery
Device is powered off
If the device has been powered off, and you have not stopped recording data on Dashboard, it will be marked as offline and a Late Reading Alarm will be raised. Please inspect the device to make sure it is correctly deployed and powered on. If it has been removed from the field, please stop recording data on Dashboard.
Poor cellular reception
If the device has had poor cellular reception in the past, this alarm could be related and the Troubleshooting a Weak Signal alarm article should be consulted.
Cellular network outage
If there is a cellular outage, usually multiple devices will go offline at the same time. If this is the case, you may want to check our connectivity partners’ status page to see if there are any reported issues. Clarity will often send an email to notify you when outages start and get resolved.
Low Battery
If your device has low battery and you are also seeing this alarm, please refer to the Troubleshooting device Power, Battery, and Charging alarms.
None of the above
If none of the above reasons seem to explain the Late Reading Alarm, please power cycle the Node-S as follows:
- Unplug the solar panel or power adapter from the Node-S power connector
- Wait 30 seconds, and plug it back in - screwing the connector's ring firmly in place
- Listen for the Node-S Power On sound and Connection Successful sound
- If you hear a Low Battery sound instead, please charge the device for at least 24 hours
- If you hear the Power On sound but not the Connection Successful sound:
- Check that the antenna is securely attached
- If possible, relocate the device to an area with stronger cell reception
- It is often helpful to test whether the Node-S connects successfully inside your office or in a place where you know there is good cell reception
If these steps are not resolving the issue, please contact our Support team and we will get back to you shortly.