# Configuring Analog Inputs In this example we'll configure Local I/O Channel 1 to operate as an analog input measuring a pump pressure sensor. First click on Local I/O Channel 1 in the sidebar to go to the channel settings view:

Then in the view that appears, click **Analog Input**:

Then click save:

Notice how the status panel at the top has changed to show the **Raw Input** (the raw value coming into the input) and the **System Value**:

The **System Value** is the value that gets written to the channel's configured **Tag** (in this case, **channel1**):

The **Raw Input** and **System Value** may differ depending on the **Dead Band, Rounding,** and **Calibration**:

The additional **Units**, **Range Min**, **Range Max**, and **Display Precision** parameters affect how the **System Value** is displayed in gauges:

In this example, we'll enter the following settings for a fictional pump. Make sure to click **Save** after entering these values.

### Calibration To ensure accuracy, the Analog Input must be calibrated. To do this click the **Calibration** button:

The next screen will ask how many calibration points you want to enter. In this example, we'll enter just **2** (the minimum):

Then click **Next**. The following screen will show you the live **Raw Input** value and have you enter the **Actual Value** corresponding to it. For example, say the pressure sensor is driving the input at **5.23 V** when at atmospheric pressure (**101.325 kPa**):

Click **Next**. Then, change your system to another known value (for example **150 kPa**), and enter that as the **Actual Value** corresponding to the **Raw Input** value (in this case, **9.82 V**):

Click **Next** again. The final screen will show you a table of the calibration points to be applied:

Click **OK** to apply these values. This will take you back to the main channel settings view where you can see the calibrated **System Value** showing: