# Main Screen

<details>

<summary>Table of Contents</summary>

[#screen-1-flowrate](#screen-1-flowrate "mention")

[#screen-2-hybrid1](#screen-2-hybrid1 "mention")

[#screen-3-status-page](#screen-3-status-page "mention")

[#screen-4-dosing](#screen-4-dosing "mention")

[#id-5-total-less-than-large-greater-than](#id-5-total-less-than-large-greater-than "mention")

[#screen-6-velocity](#screen-6-velocity "mention")

[#screen-7-flowrate-less-than-large-greater-than](#screen-7-flowrate-less-than-large-greater-than "mention")

[#screen-8-total](#screen-8-total "mention")

[#screen-9-velocity](#screen-9-velocity "mention")

[#debug-screens](#debug-screens "mention")

[#h09-home-page-setting](#h09-home-page-setting "mention")

</details>

The FU-ES features **nine main screens**. The **H09 Home Page** function allows selection of the screen displayed at startup. [Detailed instructions for H09 operation](#h09-home-page-setting) are provided at the end of this chapter.\
There are also two debugging screens, which are displayed when [H10](/qr/fu-es-echosense-instruction-manual/parameters/h-system/h10-debug-page.md) is enabled.

The FU-ES display consists of an upper **LED display** and a lower **LCD display**. The LED display shows real-time flow data (up to five digits). The LCD display changes content according to the main screen selected.

<figure><img src="/files/oRQDb0DecFAVvi1mPBHd" alt="" width="563"><figcaption></figcaption></figure>

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

* <img src="/files/bdd75120acea6361d128fd3deec06f1a8277e667" alt="" data-size="line"> **Blue Button (leftmost):** No function
* Gray Direction Buttons:
  * <img src="/files/2e37e572251371c6020ab6d9e11c1fcdd5ef0369" alt="" data-size="line"> **Left Gray:** Page navigation
  * <img src="/files/50a67ff5744401e217d5b9e838da3f7909be732f" alt="" data-size="line"> **Right Gray:** Page navigation
* <img src="/files/uJJ6BEZ4sukIlwQaHrUB" alt="" data-size="line"> **Orange Button (rightmost):** Switches to the **Settings screen**, changing the backlight from green to orange

## Main Screen Menu

### Screen 1: Flowrate

Displays instant flowrate. \
The LED display shows data (up to 5 digits). The first line of the LCD shows the flow unit **(L/m)**, the second line shows **Instant Flowrate**, and the third line shows the flow signal on the lower left and **Setup** on the lower right, indicating that pressing the orange button switches to the **Settings screen**.

<figure><img src="/files/UwyDC9tzGYCYexjek8Zs" alt="" width="563"><figcaption></figcaption></figure>

{% hint style="info" %}
A single-bar signal indicates a poor measurement environment, while less than one bar may be caused by air bubbles or other interference. When below one bar, **Noisy** is typically displayed. Adjusting the pipe according to the installation instructions is recommended to improve the signal.
{% endhint %}

### Screen 2: Velocity

Displays flow velocity. \
The LED display shows data (up to 5 digits). The first line of the LCD shows the velocity unit (**m/s**), the second line displays **Velocity**, and the third line shows the flow signal on the lower left and **Setup** on the lower right, indicating that pressing the orange button switches to the **Settings screen**.。

Velocity units can be adjusted in [B04 Velocity Unit](/qr/fu-es-echosense-instruction-manual/parameters/b-unit/b04-velocityunit.md).

<figure><img src="/files/ygEssVTlYChPu8rh5q11" alt="" width="563"><figcaption></figcaption></figure>

### Screen 3: Total&#x20;

Displays total accumulated flow. \
The LED display shows data (up to 5 digits). The first line of the LCD shows the total flow unit (**L**), the second line displays **Total Flow**, and the third line shows the flow signal on the lower left and **Setup** on the lower right, indicating that pressing the orange button switches to the **Settings screen**.

Total flow units can be adjusted in [B03 Total Unit](/qr/fu-es-echosense-instruction-manual/parameters/b-unit/b03-total-unit.md).

<figure><img src="/files/asgKWLBaE1Bif8BkARsM" alt="" width="563"><figcaption></figcaption></figure>

{% hint style="info" %}
Flow in Simulation Mode is also included in the total flow.
{% endhint %}

### Screen 4: Flowrate \<Large>

Displays instant flowrate with enlarged digits for easy viewing. \
The LED display shows data (up to 5 digits). The LCD large digits show the flowrate, and the lower right displays the unit (**L/m**). Pressing the orange button at the lower right switches to the **Settings screen**.

Flow units can be adjusted in [B01 Vol. Unit](/qr/fu-es-echosense-instruction-manual/parameters/b-unit/b01-vol.unit.md) and [B02 Time Unit](/qr/fu-es-echosense-instruction-manual/parameters/b-unit/b02-time-unit.md).

<figure><img src="/files/PnTIa8NZYQImt0MdFkKT" alt="" width="563"><figcaption></figcaption></figure>

### Screen 5: Velocity \<Large>

Displays flow velocity with enlarged digits for easy viewing. \
The LED display shows data (up to 5 digits). The LCD large digits show the velocity, and the lower right displays the unit (**m/s**). Pressing the orange button at the lower right switches to the **Settings screen**.

Velocity units can be adjusted in [B04 Velocity Unit](/qr/fu-es-echosense-instruction-manual/parameters/b-unit/b04-velocityunit.md).

<figure><img src="/files/GUa4zOzx5dnAXWaoKHoz" alt="" width="563"><figcaption></figcaption></figure>

### Screen 6: Total \<Large>&#x20;

Displays total flow with enlarged digits for easy viewing. \
The LED display shows data (up to 5 digits). The LCD large digits show **Total Flow**, **POS** at the bottom indicates forward direction, and the lower right shows the flow unit (**L**). Pressing the orange button at the lower right switches to the **Settings screen**.

Total calculation method can be adjusted in [C01 Total Method](/qr/fu-es-echosense-instruction-manual/parameters/c-total/c01-total-method.md): **POS** (Forward), **NET** (Net), **NEG** (Reverse), and total flow units can be adjusted in [B03 Total Unit](/qr/fu-es-echosense-instruction-manual/parameters/b-unit/b03-total-unit.md).

<figure><img src="/files/49EcFdTe9A1JH78zi1os" alt="" width="563"><figcaption></figcaption></figure>

{% hint style="info" %}
Flow in Simulation Mode is also included in the total accumulated flow.
{% endhint %}

### Screen 7: Dosing

Used for batch or quantitative control (**Dosing**). \
The LED display shows data (up to 5 digits). The first line of the LCD shows the **Dosing Reset Time**, the second line shows **Total Flow**, and the third line shows the flow signal on the lower left and **Setup** on the lower right, indicating that pressing the orange button switches to the **Settings screen**.

The dosing reset time can be adjusted in [C05 Dosing Reset Time](/qr/fu-es-echosense-instruction-manual/parameters/c-total/c05-dosing-reset-time.md), and total flow units can be adjusted in [B03 Total Unit](/qr/fu-es-echosense-instruction-manual/parameters/b-unit/b03-total-unit.md).

<figure><img src="/files/16utMO2mqV9bNbnuGdAA" alt="" width="563"><figcaption></figcaption></figure>

### Screen 8：Status Page

Displays system status and diagnostics, showing **Alarm A, B, C codes** and the system **S code**. \
A red flowmeter indicator signals a problem requiring attention; switching to this screen allows confirmation of flowmeter abnormalities. For details, refer to the [Alarms and System Status](/qr/fu-es-echosense-instruction-manual/user-interface/alarms-and-system-status.md) section.

<figure><img src="/files/qkjcmOLVoUvDXI0ULBXa" alt="" width="563"><figcaption></figcaption></figure>

{% hint style="info" %}
Record a video or take a photo of this page for factory verification when an issue occurs.
{% endhint %}

### Debug Screens

Two additional debug screens are available and are displayed when [**H10**](/qr/fu-es-echosense-instruction-manual/parameters/h-system/h10-debug-page.md) is enabled. These screens are intended for diagnostics and factory troubleshooting.

<figure><img src="/files/1IHPeUQJpwtnydONNaiw" alt="" width="563"><figcaption></figcaption></figure>

{% hint style="info" %}
If a problem occurs, record a video or take a photo of these screens for factory confirmation.
{% endhint %}

### Screen 2: Hybrid1

The hybrid screen displays both **Instant Flowrate** and **Total Flow** simultaneously. \
The LED screen displays data (up to five digits). The LCD first line shows **Instant Flowrate**, the second line shows **Total Flow**, and the third line shows the flow signal on the lower left and **Setup** on the lower right, indicating that pressing the orange button switches to the **Settings screen**.

Instant flow units can be adjusted in [B01 Vol. Unit](/qr/fu-es-echosense-instruction-manual/parameters/b-unit/b01-vol.unit.md) and [B02 Time Unit](/qr/fu-es-echosense-instruction-manual/parameters/b-unit/b02-time-unit.md), while total flow units can be adjusted in [B03 Total Unit](/qr/fu-es-echosense-instruction-manual/parameters/b-unit/b03-total-unit.md).

{% hint style="info" %}
The **Hybrid1** home screen display is available from **firmware version P1203 onwards**.
{% endhint %}

<figure><img src="/files/vaXELzv1YYsHYQ7oF4Eq" alt="" width="563"><figcaption></figcaption></figure>

<figure><img src="/files/Vakr85W2AduXevSxPnmU" alt="" width="563"><figcaption></figcaption></figure>

### H09 Home Page Setting

The [**H09 Home Page**](/qr/fu-es-echosense-instruction-manual/parameters/h-system/h09-home-page.md) parameter allows you to select which screen is displayed at startup.

<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="/files/bdd75120acea6361d128fd3deec06f1a8277e667" alt="" data-size="line"> **Blue Button (leftmost):** Return, exit, or save settings.
* Gray Direction Buttons:
  * <img src="/files/2e37e572251371c6020ab6d9e11c1fcdd5ef0369" alt="" data-size="line"> **Left Gray:** Previous Page, decrease value, or select item
  * <img src="/files/50a67ff5744401e217d5b9e838da3f7909be732f" alt="" data-size="line"> **Right Gray:** Next Page, increase value, or select item
* <img src="/files/uJJ6BEZ4sukIlwQaHrUB" 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="/files/CPcQtIJoFJ4o2I9eDF8A" alt="" width="563"><figcaption></figcaption></figure>


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