> 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/fu-lt-english-v1/parameters/d-alarm-and-info/d12-iout-alarm.md).

# D12 Iout Alarm

### Definition

Set the flow meter’s alarm mode for analog output exceeding the 4–20 mA range. Default: Off. The alarm code belongs to Alarm – B.

### Notes

The corresponding values ​​for 4 mA and 20 mA can be adjusted in parameters E07 (4 mA) and E08 (20 mA) respectively.

Do Not Disturb mode indicates that when an anomaly occurs, the screen display color will not change, but the numbers in the communication section and the bits in the status page will still indicate the anomaly.

{% hint style="info" %}

#### **DND (Do Not Disturb) Mode**

* System detects abnormalities, but **red backlight remains off**.
* Example: **Alarm-A “4 Off Pipe”** triggers no backlight.
* Abnormalities still appear on the **Abnormalities page**.
* **RS485** connection still sends alarm signals.
* **OCT output** continues to signal alarms if configured.
  {% endhint %}

### Operation Procedure

<details>

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

The main unit has **four buttons**. The **bottom line (Line 3)** of the LCD displays the current function of each button. Under normal operation, the button functions are as follows:

* <img src="/files/bdd75120acea6361d128fd3deec06f1a8277e667" alt="" data-size="line"> **Blue Button -** Leftmost button: Return, exit, or save settings.

Gray Arrow Buttons:

* <img src="/files/2e37e572251371c6020ab6d9e11c1fcdd5ef0369" alt="" data-size="line"> **Left Gray Button:** Previous Page, decrease value, or select item
* <img src="/files/50a67ff5744401e217d5b9e838da3f7909be732f" alt="" data-size="line"> **Right Gray Button:** Next Page, increase value, or select item
* <img src="/files/6c0b22a2048cf9b2afd86fac7a65e414feb967d4" alt="" data-size="line"> **Orange Button:** 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>

```
D12 Iout Alarm Setting Steps
• From the main screen (green backlight), 
  press Orange Button (Setup) to enter settings (orange backlight).
• Use Gray Arrow Buttons to select D. Alarm & Info , press Orange Button (Enter).
• Use Gray Arrow Buttons to select D12 Iout Alarm, 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/5ptEtaNHwG6RZb2ieboa" alt="" width="375"><figcaption></figcaption></figure>

### D12 Options, RS485 Values, Read/Write Commands, and Formats

| Option         | Description | RS-485 Value |
| -------------- | ----------- | ------------ |
| Off (Default)  | -           | 0            |
| On             | -           | 1            |
| Do Not Disturb | -           | 2            |

> Refer to the [Read/Write Memory List](/qr/fu-lt-english-v1/communication/modbus-rtu-protocol/read-write-memory-ram.md) for the Modbus command format. This parameter uses the Int16 data format.


---

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