Skip to main content

FAQ

Measurements & calibration issues​

Measurements Giving Wrong Values

High Analog Zero Offset (in volts range)

Ensure that the red DIP-switch positions correspond to the settings on the Configuration page.

Small, Significant Analog Zero Offset

If analog inputs are not 0V, calibrate the Uberlogger using the Calibration button. Please note that the values will always fluctuate around ±0.02V for 12-bit resolution and ±0.01V for 16-bit resolution.

Temperature Sensor Discrepancies

Unequal Readings Between Two Open-Air Temperature Sensors

A temperature difference between sensors in open air can occur due to environmental factors.

Digital Input Issues

Digital Inputs Not Triggering

Digital inputs require a minimum of 2.0V to trigger a state change.

Calibration Issues After Zero Calibration

Zero Calibration Results Seem Off

Make sure all NTCs and analog wires are disconnected. Set all analog inputs to the analog input mode and select a range of -10V / +10V. Then, recalibrate the Uberlogger. If the issue persists, please contact support.

Wi-Fi issues​

Unable to Connect to Uberlogger in Hotspot Mode
  • Check Proximity: Ensure you are within range of the Uberlogger's hotspot signal. Walls or obstacles can degrade signal quality.
  • Reboot the Uberlogger: Power-cycle or reset the Uberlogger to refresh its settings and try connecting again.
  • Check for Interference: If you are in an area with multiple Wi-Fi networks, check if the Uberlogger hotspot channel is not interfering with another network. You can change the network channel as described here.
Unable to Connect the Uberlogger to a Local Access Point
  • Check Access Point Frequency: Ensure the access point is operating on the 2.4 GHz band, as 5 GHz networks are not supported.
  • Check RSSI Signal: Verify that the RSSI (Received Signal Strength Indicator) of the access point is strong enough. The signal strength should be better than -80 dB.
  • Confirm Password: Ensure the correct password is entered for the local access point.
  • Change Wi-Fi Channel: Ensure the Wi-Fi channel set on the access point is compatible with the Uberlogger.
  • Reboot Both Devices: Power-cycle both the Uberlogger and the local access point, and try reconnecting after a minute.
  • Guest and Enterprise Networks: Uberlogger does not support guest networks that require login portals or networks with enterprise-level certificates.
  • Check for MAC Filtering: If the local access point has MAC address filtering enabled, add the Uberlogger's MAC address to the whitelist.

Red LED flashing & error codes​

Overview of codes

In case of an error, the red LED on the Uberlogger will flash, and you can see the error code on the configuration page. Below is the list of error codes and their meanings.

Error CodeMeaningSolution
1Unable to open log file.Check the SD card for errors on your PC or if the SD card is full.
4, 8, 32, 256Internal hardware errorContact customer support and report the error code.
16Unable to write on SD card.Check free disk space. If the issue persists, contact support.
32Sync errorUnable to synchronize with support chip. Contact customer support.
128Unable to mount SD cardTry reading the SD card on a PC and reinsert it into the Uberlogger. If it fails, try another SD card.
512No free spaceYou need at least 200 kB of free space. Remove files from the SD card to free up space.
4096Max file size reachedThe maximum file size of 4 GB has been exceeded.

Customer Support​

If you cannot solve the issue using the above FAQ, you can contact customer support by visiting www.uberlogger.com/support.