LogTag errors – what they mean and how to fix them
If you’ve ever had a LogTag throw an error message at you, don’t stress. Most issues are easy to sort out once you know what’s going on. Whether you’re downloading data or setting up a logger, here’s a quick guide to common LogTag errors and how to fix them.
Update your software first
- Open LogTag Analyzer
- Go to Help → Check internet for updates
- Or grab the latest version from our software page
Check the battery
Low battery can cause all sorts of weird behaviour. If your logger’s been in use for a while or stored somewhere cold, check the battery status and let it warm up to room temp before trying again.
Common error messages and what to do
Here are a few of the usual suspects and how to deal with them:
“Cannot connect to LogTag…” / “$4:USB.0012345” / “Failed to respond [20]”
These errors mean the software can see the logger but can’t talk to it properly. Try this:
Clean the contact pads – use a soft cloth or a pencil eraser to remove any grime or corrosion.
Check the cradle pins – there should be three spring-loaded pins inside. If one’s stuck, gently loosen it.
Use a powered USB hub – unpowered hubs might not give enough juice. Plug directly into your computer or use a powered hub.
Try again – sometimes a second go does the trick.
Switch USB ports – faulty ports can cause connection issues.
Don’t yank the logger too early – wait until the download finishes before removing it.
Cold conditions
If your logger’s just come out of a freezer, let it warm up before downloading. Cold batteries can drop voltage and mess with performance.
Water damage
Not all LogTags are waterproof. If water’s gotten in, the unit might still work for a bit but eventually stop communicating. Check your model’s IP rating and usage guidelines.
EMC or radiation exposure
Strong electromagnetic fields or radiation can corrupt internal memory. If you suspect this, get in touch with support for help.
“LOGTAG NOT FOUND Error [23]”
Still stuck? Explore more troubleshooting tips in our Support section or get in touch with our team. Keeping your software up to date and your hardware clean goes a long way in keeping things running smoothly.
Why can’t I see the LogTag interface?