# EMI Testing

These instructions detail how to use the data viewer during EMI testing.

1. Update to get the newest EMI window config
	1. Open a terminal
    2. `cd ocigse`
    3. `git pull`
    4. Close terminal
2. On the bottom menu bar, click on `ocidataview` and select the `OCI Data Viewer` window.

[![](http://wiki2.xina.io/uploads/images/gallery/2022-06/scaled-1680-/image-1655400490703-27-46.png)](http://wiki2.xina.io/uploads/images/gallery/2022-06/image-1655400490703-27-46.png)

3. At the top of this window is a menu bar. Select `Setup` -> `Restore Windows`

4. Select `emi` and click OK. This will load the 'emi' window configuration and may take up to a minute to reload the cached data.

5. You can switch between the open viewers by clicking on the `ocidataview` in the menu bar and then selecting a viewer from the list.

6. The 4 main viewers you will be using are:
	- **SSM Ch Stats vs. Time - AVG** -  Displays AVG counts for the whole scan per SSM channel.
    - **SSM Ch Stats vs. Time - SD** - Displays SD for the whole scan per SSM channel.
    - **Stats Per Pixel vs. Time - AVG** - Displays AVG counts for the whole scan per FPA pixel.
    - **Stats Per Pixel vs. Time - SD** - Displays SD for the whole scan per FPA pixel.

<p class="callout info">  Susceptibilities are more apparent in the SD variants; below is an example of what this may look like:
</p>``    

[![](http://wiki2.xina.io/uploads/images/gallery/2022-06/scaled-1680-/image-1655774792298-25-56.png)](http://wiki2.xina.io/uploads/images/gallery/2022-06/image-1655774792298-25-56.png)