> For the complete documentation index, see [llms.txt](https://docs.lorric.com/qr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lorric.com/qr/fp-as510-paddle-wheel-flowmeter-manual-en-v2/human-machine-interface/monitoring-screen.md). # Main Screen The FP-AS510 features **7** main screens, displaying real-time data monitoring. The last 15 pages are the current date, time and historical cumulative volume for the past 14 days. All the pages can be viewed cyclically by pressing the middle 2 direction buttons. Each definition on these 22 pages could be found below. When the main screen is displayed in **green backlight**, the four buttons function as follows: * **Blue Button:** Leftmost button: Return, exit, or save settings. * Gray Direction Buttons: * **Left Gray:** Previous Page, decrease value, or select item * **Right Gray:** Next Page, increase value, or select item * **Orange Button (rightmost):** Enter settings, edit, or confirm selection ## **Main Screen Menu** ### Screen 1: **Flowrate** The first line of the LCD shows the flow unit, 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**. {% 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 installation instructions is recommended to improve the signal. {% endhint %} ### **Screen 2: Velocity** 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**. ### **Screen 3: Total** 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**. {% hint style="info" %} Flow in Simulation Mode is also included in the total flow. {% endhint %} ### **Screen 4: 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** page. {% hint style="info" %} Record a video or take a photo of this page for factory verification when an issue occurs. {% endhint %}
### **Screen 5: Flowrate \** Displays **instant flowrate** with enlarged digits for easy viewing. The 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** and **B02 Time Unit**. ### **Screen 6: Velocity \** Displays flow velocity with enlarged digits for easy viewing. The 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**. ### **Screen 7: Total \** Displays total flow with enlarged digits for easy viewing. The 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**: **POS** (Forward), **NET** (Net), **NEG** (Reverse), and total flow units can be adjusted in **B03 Total Unit**. {% hint style="info" %} Flow in Simulation Mode is also included in the total accumulated flow. {% endhint %} --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.lorric.com/qr/fp-as510-paddle-wheel-flowmeter-manual-en-v2/human-machine-interface/monitoring-screen.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.