# H09 Home Page

### Definition

Sets the **main screen displayed on startup**. The FU-LT flow meter offers **9 main screens**, with the default being **Flowrate (instantaneous flow)**.

To view or select the startup screen, navigate to **HMI → Main Screen**.

### Notes

N/A

### Operation Procedure

<details>

<summary><strong>Button Functions</strong> <em>(Click to Expand)</em></summary>

When the main screen is displayed in **green backlight**, the four buttons function as follows:

* <img src="https://4028902321-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FSBz5Tlpy8GCIkK4ygkgZ%2Fuploads%2FRnX1fMK1ja5FUx043ZYc%2Fimage?alt=media&#x26;token=f31dd577-ba27-4369-af8b-25ce9afcd1f9" alt="" data-size="line"> **Blue Button (leftmost):** Return, exit, or save settings.
* Gray Direction Buttons:
  * <img src="https://4028902321-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FSBz5Tlpy8GCIkK4ygkgZ%2Fuploads%2FR48KXgI2flteQ78PYH8a%2Fimage?alt=media&#x26;token=b5b4ab82-6f88-44c6-8b85-181c7bde6fe9" alt="" data-size="line"> **Left Gray:** Previous Page, decrease value, or select item
  * <img src="https://4028902321-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FSBz5Tlpy8GCIkK4ygkgZ%2Fuploads%2FVWLxHCjTZgj8Y3CXUn6X%2Fimage?alt=media&#x26;token=35556f59-f963-4b03-8db1-34f2953ddb58" alt="" data-size="line"> **Right Gray:** Next Page, increase value, or select item
* <img src="https://4028902321-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FSBz5Tlpy8GCIkK4ygkgZ%2Fuploads%2F0lsHAW4cWIphk6mKtEoK%2Fbutton-orange.png?alt=media&#x26;token=9168c231-821c-4895-9194-0cf61b2fd06a" alt="" data-size="line"> **Orange Button (rightmost):** Rightmost button: Enter settings, edit, or confirm selection

{% hint style="danger" %}
**Do not hold buttons for extended periods to avoid damage.**
{% endhint %}

{% hint style="info" %}
Button functions may change depending on the operation context to improve usability or prevent accidental presses.
{% endhint %}

</details>

```
H09 Home Page Setting Steps
• From the main screen (green backlight), 
  press Orange Button (Setup) to enter settings (orange backlight).
• Use Gray Arrow Buttons to select H. System , press Orange Button (Enter).
• Use Gray Arrow Buttons to select H09 Home Page, press Orange Button (Enter).
• Use Gray Arrow Buttons to choose the options. 
• Press Orange Button (Set) to confirm.
• Press Blue Button (ESC) to return to the main screen (green backlight).
```

<figure><img src="https://4028902321-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FSBz5Tlpy8GCIkK4ygkgZ%2Fuploads%2F7aBf08VxUVkWfFJrL31D%2Ffu-es-H09-en.png?alt=media&#x26;token=218d6ab9-b9c2-4a1d-84cd-1489b3fef9b1" alt="" width="563"><figcaption></figcaption></figure>

### H09 Options, RS485 Values, Read/Write Commands, and Formats

| Options            | Description | RS-485 Numbers |
| ------------------ | ----------- | -------------- |
| Flowrate (Default) | -           | 0              |
| Velocity           | -           | 1              |
| Total              | -           | 2              |
| Flowrate (L)       | -           | 3              |
| Velocity (L)       | -           | 4              |
| Total (L)          | -           | 5              |
| Dosing             | -           | 6              |
| Status Page        | -           | 7              |
| Hybrid1            | -           | 8              |

> Refer to the [Read/Write Memory List](https://docs.lorric.com/qr/fu-es-echosense-instruction-manual/communication/modbus-rtu-protocol/read-write-memory-ram) for the Modbus command format. This parameter uses the Int16 data format.