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Problems connecting to my data logger

Tinytag Explorer will automatically detect data loggers when they are started or downloaded. If you are having trouble connecting your data logger to the software, your logger's battery may have run flat, you may be running an older version of Tinytag Explorer or the USB cable/pad drivers may not have installed correctly.

If Tinytag Explorer cannot see a data logger, it will return the following error message:

A dialogue box from Tinytag Explorer. It reads

Failed to connect to a data logger. Please check the connection and battery and try again.

Follow the steps below to troubleshoot this error.

1. Check 'automatic com port detection' is turned on

Tinytag Explorer can detect data loggers automatically, but this feature might not be turned on in your software.

To check whether Tinytag Explorer is set to automatically detect data loggers, go to Options >> Communication Options and ensure that the Use Fully Automatic Com Port Detection option has been selected.

If this option is not present in the version of the software you are using, you should upgrade to the latest version as described below.

2. Check for software updates

Upgrading to the latest version of Tinytag Explorer is free of charge. You can check to see if you are running the latest version of Tinytag Explorer here.

3. Manually installing USB drivers

If you have tried the above steps and Tinytag Explorer still does not recognise your data logger, it is likely that the device drivers for your USB cable or pad have not installed properly and you will need to install them manually.

Before manually installing USB drivers, you should check whether the drivers have installed correctly:

  1. Plug your USB cable or pad into your computer.
  2. Go to your Device Manager:
    1. Windows 7 Users: Start Button >> Control Panel >> Hardware and Sound >> Device Manager
    2. Windows 8 Users: Settings >> Control Panel >> Hardware and Sound >> Device Manager
    3. Windows 8.1 and 10 Users: Right click on the 'Start' Button and select 'Device Manager'
  3. Check whether your USB cable or pad is listed under 'Ports (COM and LPT)' as a USB Serial Port (with a 'COM' number listed after it).

If your device is not listed as a USB Serial Port, it may be listed as a Gemini USB cable with a yellow exclamation mark next to it under 'Unknown' or 'Other Devices'. If this is the case, you will need to manually install the drivers for your USB cable or pad by following the instructions below.

If your device is listed under 'Ports (COM and LPT)' as a USB Serial Port and you have checked that Tinytag Explorer's 'Use Fully Automatic Com Port Detection' setting is turned on (see above) but your USB device is still unable to connect, please contact your supplier or email help@tinytag.info for further assistance.

How to manually install USB drivers:

  1. Right click on the entry for your device in Device Manager and select 'Update driver'. This will prompt a hardware wizard to open in a new window.
  2. In the new window, click the Browse button and select the folder C:\Program Files(x86)\Tinytag\Tinytag Explorer\Drivers, then click 'Next'. Confirm your agreement to the installation if you are prompted to do so.
  3. Once the drivers have installed, click 'Finish'.

If your device is still listed with a yellow exclamation mark against it, repeat the above process once again. This will set the device up as a COM port (the installation is a two-step process, first installing the drivers for the cable/pad, and then setting up the cable/pad as COM port).

When you have completed the installation for the second time, the device should move to 'Ports (COM and LPT)' and be listed as a USB Serial Port (with a 'COM' port number after it) and your USB cable or pad should be ready to use.

4. Check the data logger's battery life

If your data logger's battery has run flat, it will not be visible to the software.

If you believe you need a new battery for your data logger, details of the service kits we supply can be found here: Tinytag Service Kits.

If you have followed all of the above steps and are still unable to communicate with your data logger, please contact your supplier or email help@tinytag.info for further assistance.

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