# D Alarm & Info

<table data-header-hidden><thead><tr><th width="74.62109375">No.</th><th width="155.263671875">Name</th><th>Description</th></tr></thead><tbody><tr><td>No.</td><td>Name</td><td>Description</td></tr><tr><td>D01</td><td><p>Board </p><p>Communication</p><p>Alarm</p></td><td>Set the flow meter’s alarm mode for carrier communication module malfunctions. Default: Do Not Disturb. The alarm code belongs to Alarm – A.</td></tr><tr><td>D03</td><td>Bad Signal Alarm</td><td>Set the flow meter’s alarm mode for poor ultrasonic signal conditions. Default: Do Not Disturb. The alarm code belongs to Alarm – C.</td></tr><tr><td>D05</td><td><p>FlowLIM Ala<br>(Flow Volume</p><p> Limit Alarm)</p></td><td>Set the flow meter’s alarm mode for flow exceeding the instantaneous flow range. Default: Off. The alarm code belongs to Alarm – B. (D05 , D06 , D07 , and D08 work together to enable the flow range over-limit alarm function.)</td></tr><tr><td>D06</td><td><p>Up LIM </p><p>(Upper Limit)</p></td><td>Set the upper limit of the normal flow range. Default: 100.<br>(D05 , D06 , D07 , and D08 work together to enable the flow range over-limit alarm function.)</td></tr><tr><td>D07</td><td><p>Low LIM</p><p>(Lower Limit)</p></td><td>Set the lower limit of the normal flow range. Default: 0.<br>(D05 , D06 , D07 , and D08 work together to enable the flow range over-limit alarm function.)</td></tr><tr><td>D08</td><td>Hysteresis<br>(Hysteresis Percentage)</td><td><p>Set the hysteresis percentage for clearing flow upper and lower limit alarms. This ensures the alarm is only cleared when the flow stabilizes back within the set range. The percentage is defined relative to the span between the upper and lower limits. Default: 03 (3%).</p><p>(D05 , D06 , D07 , and D08 work together to enable the flow range over-limit alarm function.)</p></td></tr><tr><td>D09</td><td><p>Total Ala.</p><p>(Total Alarm)</p></td><td>Set the flow meter’s alarm mode for totalizer values exceeding the set range. Default: Off. The alarm code belongs to Alarm – B. (D09 , D10 , and D11  work together to enable totalizer target alarm functionality.)</td></tr><tr><td>D10</td><td><p>Total Trig. </p><p>(Total Alarm </p><p>Trigger </p><p>Condition)</p></td><td><p>Set the notification condition for the totalizer target. Default: Greater than target.</p><p> (D09 , D10 , and D11  work together to enable totalizer target alarm functionality.)</p></td></tr><tr><td>D11</td><td>Total Target</td><td><p>Set the totalizer target value. Default: +100.</p><p> (D09 , D10 , and D11  work together to enable totalizer target alarm functionality.)</p></td></tr><tr><td>D12</td><td>Iout Alarm</td><td>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.</td></tr><tr><td>D13</td><td>Speed Alarm</td><td>Set the flow meter’s alarm mode for flow rate exceeding the absolute value of 6 m/s. Default: Off. The alarm code belongs to Alarm – B.</td></tr><tr><td>D14</td><td>PulseOverlap</td><td>Set the flow meter’s alarm mode for overlapping output signals caused by an excessively long E03 Pulse Width. The alarm code belongs to Alarm – B.</td></tr><tr><td>D15</td><td><p>IoutStatAla </p><p>(Iout Status Alarm)</p></td><td>Set the flow meter’s alarm mode for abnormal 4–20 mA current output (Iout). Default: Do Not Disturb. The alarm code belongs to Alarm – C.</td></tr><tr><td>D16</td><td>Dosing Alarm</td><td>Set the flow meter’s alarm mode when the totalizer reaches the preset target (C04). Default: Do Not Disturb.</td></tr></tbody></table>

{% hint style="info" %}
In **Do Not Disturb mode**, the screen color remains unchanged during an abnormal condition, but values and status bits still indicate the issue.
{% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.lorric.com/qr/fu-lt-english-v1/parameters/d-alarm-and-info.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.