# Create measurement group

{% stepper %}
{% step %}
**Connect computer to BactoBox®**

1. Connect your BactoBox® to a computer using the provided USB cable.
2. When the external BactoBox drive appears, double-click the Access file. This will open a browser window. The preferred browsers are Chrome and Firefox.
3. Activate full screen mode, press <kbd>F11</kbd> (or <kbd>Fn+F11</kbd> depending on keyboard configuration).

<figure><img src="/files/QCcFnsvDUxI5alqhS53v" alt=""><figcaption></figcaption></figure>

{% hint style="danger" %}

#### No connection to Access?

For troubleshooting of connectivity issues, please see [Can not connect to Access](https://help.sbtinstruments.com/power-on-works-but.../can-not-connect-to-access).
{% endhint %}
{% endstep %}

{% step %}
**Create a correlation measurement group**

1. Click the *Measurement group* menu item.
2. Click *Create measurement group.*
3. Provide the experiment details in the input fields. You can use either the pointer device or the tab key to move between input fields. Choose the type *correlation*
4. *Click Create to complete the procedure*
5. Finally, click the *open* icon to enter the measurement group you have just created.

<figure><img src="/files/BDY2reUjNFUMxnyTxgbn" alt=""><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

## Summary

You created and opened a measurement group for the growth curve experiment. Next, check the contribution of background particulates from your growth medium.


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