# A03 Pipe Geo Unit

### Definition

This function sets the unit for the flow meter’s tube size. The default unit is **mm**.

### Notes

1. After executing this function, the setting for B06 (Tube Size Unit) will be automatically updated.
2. <mark style="color:red;">Each time the pipeline size is changed, perform Z03 Auto Initialize and Z04 Auto Zero Offset to ensure accurate flow readings and maintain stable product quality.</mark>

### 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>

```
A03 Pipe Geo Unit Setting Steps
• From the main screen (green backlight), 
press Orange Button (Setup) to enter settings (orange backlight).
• Use Gray Arrow Buttons to select A. Measurement , press Orange Button (Enter).
• Use Gray Arrow Buttons to select A03 Pipe Geo Unit, 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%2FPfCIAa3XquUG7vPo8V4n%2FFU-ES-A03-en.png?alt=media&#x26;token=6d1a544d-c60a-428f-9949-495a99b28669" alt="" width="563"><figcaption></figcaption></figure>

### A03 **Options, RS485 Values, Read/Write Commands, and Formats**

| Options      | Description | RS-485 Value |
| ------------ | ----------- | ------------ |
| mm (Default) | mm          | 0            |
| inch         | inch        | 1            |

### **Pipe Size Reference Table (Outer Diameter / Inner Diameter / Wall Thickness / Circumference)**

The allowable input ranges for parameters A04 to A07 vary depending on the unit setting of A03 and the device model.\
If values for A04 to A07 are entered first and the unit setting of A03 is changed afterward, the system will automatically perform unit conversion.

For example, if A04 (pipe outer diameter) is entered as 1.0 in inch mode and A03 is later switched to mm, the displayed value of A04 will be automatically converted to 25.4.

{% hint style="info" %}

1. Since the inner diameter is calculated from the outer diameter and wall thickness (ID = OD − 2 × thickness), all four parameters are interdependent. If an entered value causes any parameter to exceed its allowable range, the system will not permit the value to be saved.
2. All system values are calculated using float32 precision. As a result, displayed or calculated values may include non-integer numbers.
3. Millimeters (mm) are used as the base unit, while inches are provided as converted values (conversion reference: 1 inch = 25.4 mm).
4. If a value exceeds four decimal places, it will be truncated to four decimal places without rounding.
   {% endhint %}

### FU-ES015 (mm)

<table><thead><tr><th>Parameter</th><th>預設值</th><th data-type="number">最小值</th><th data-type="number">最大值</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) 管路外徑</td><td>22</td><td>15</td><td>30</td></tr><tr><td>A05 Pipe Perimeter 管路圓周</td><td>69.08</td><td>47.1</td><td>94.2</td></tr><tr><td>A06 Pipe thickness 管路厚度</td><td>2.7</td><td>0.5</td><td>5</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>16.6</td><td>5</td><td>29</td></tr></tbody></table>

### FU-ES020 (mm)&#x20;

<table><thead><tr><th>Parameter</th><th>預設值</th><th data-type="number">最小值</th><th data-type="number">最大值</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) 管路外徑</td><td>26</td><td>18</td><td>35</td></tr><tr><td>A05 Pipe Perimeter 管路圓周</td><td>81.64</td><td>56.52</td><td>109.9</td></tr><tr><td>A06 Pipe thickness 管路厚度</td><td>2.7</td><td>0.8</td><td>5.5</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>20.6</td><td>7</td><td>33.4</td></tr></tbody></table>

### FU-ES025 (mm)

<table><thead><tr><th>Parameter</th><th>預設值</th><th data-type="number">最小值</th><th data-type="number">最大值</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) 管路外徑</td><td>32</td><td>24</td><td>43</td></tr><tr><td>A05 Pipe Perimeter 管路圓周</td><td>100.48</td><td>75.36</td><td>135.02</td></tr><tr><td>A06 Pipe thickness 管路厚度</td><td>3.2</td><td>1</td><td>6</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>25.6</td><td>12</td><td>41</td></tr></tbody></table>

### FU-ES032 (mm)

<table><thead><tr><th>Parameter</th><th>預設值</th><th data-type="number">最小值</th><th data-type="number">最大值</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) 管路外徑</td><td>38</td><td>30</td><td>53</td></tr><tr><td>A05 Pipe Perimeter 管路圓周</td><td>119.32</td><td>94.2</td><td>166.42</td></tr><tr><td>A06 Pipe thickness 管路厚度</td><td>3.2</td><td>1</td><td>6</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>31.6</td><td>18</td><td>51</td></tr></tbody></table>

### FU-ES040 (mm)

<table><thead><tr><th>Parameter</th><th>預設值</th><th data-type="number">最小值</th><th data-type="number">最大值</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) 管路外徑</td><td>48</td><td>36</td><td>65</td></tr><tr><td>A05 Pipe Perimeter 管路圓周</td><td>150.72</td><td>113.04</td><td>204.1</td></tr><tr><td>A06 Pipe thickness 管路厚度</td><td>3.7</td><td>1</td><td>6.5</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>40.6</td><td>23</td><td>63</td></tr></tbody></table>

### FU-ES050 (mm)

<table><thead><tr><th>Parameter</th><th>預設值</th><th data-type="number">Minimum</th><th data-type="number">最大值</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) </td><td>60</td><td>46</td><td>78</td></tr><tr><td>A05 Pipe Perimeter </td><td>188.4</td><td>144.44</td><td>244.92</td></tr><tr><td>A06 Pipe thickness </td><td>4.1</td><td>1</td><td>8</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>51.8</td><td>30</td><td>76</td></tr></tbody></table>

### FU-ES065 (mm)

<table><thead><tr><th>Parameter</th><th>預設值</th><th data-type="number">Minimum</th><th data-type="number">最大值</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) </td><td>76</td><td>58</td><td>92</td></tr><tr><td>A05 Pipe Perimeter </td><td>238.64</td><td>182.12</td><td>288.88</td></tr><tr><td>A06 Pipe thickness </td><td>4.1</td><td>1.4</td><td>10</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>67.8</td><td>38</td><td>89.2</td></tr></tbody></table>

### FU-ES075 (mm)

<table><thead><tr><th>Parameter</th><th>預設值</th><th data-type="number">Minimum</th><th data-type="number">最大值</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) </td><td>89</td><td>70</td><td>120</td></tr><tr><td>A05 Pipe Perimeter </td><td>279.46</td><td>219.8</td><td>376.8</td></tr><tr><td>A06 Pipe thickness </td><td>5.4</td><td>1.5</td><td>12</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>78.2</td><td>46</td><td>117</td></tr></tbody></table>

## A03 為 inch 模式時A04\~A07參數輸入範圍

### FU-ES015 (inch)

<table><thead><tr><th>Parameter</th><th>預設值</th><th data-type="number">Minimum</th><th data-type="number">最大值</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) </td><td>0.866</td><td>0.591</td><td>1.181</td></tr><tr><td>A05 Pipe Perimeter </td><td>2.720</td><td>1.854</td><td>3.709</td></tr><tr><td>A06 Pipe thickness </td><td>0.106</td><td>0.02</td><td>0.197</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>0.654</td><td>0.197</td><td>1.142</td></tr></tbody></table>

### FU-ES020 (inch)

<table><thead><tr><th>Parameter</th><th>預設值</th><th data-type="number">Minimum</th><th data-type="number">最大值</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) </td><td>1.024</td><td>0.709</td><td>1.378</td></tr><tr><td>A05 Pipe Perimeter </td><td>3.214</td><td>2.225</td><td>4.327</td></tr><tr><td>A06 Pipe thickness </td><td>0.106</td><td>0.031</td><td>0.217</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>0.811</td><td>0.276</td><td>1.315</td></tr></tbody></table>

### FU-ES025 (inch)

<table><thead><tr><th>Parameter</th><th>Default</th><th data-type="number">Minimum</th><th data-type="number">Maximum</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) </td><td>1.260</td><td>0.945</td><td>1.693</td></tr><tr><td>A05 Pipe Perimeter </td><td>3.956</td><td>2.967</td><td>5.316</td></tr><tr><td>A06 Pipe thickness </td><td>0.126</td><td>0.039</td><td>0.236</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>1.008</td><td>0.472</td><td>1.614</td></tr></tbody></table>

### FU-ES032 (inch)

<table><thead><tr><th>Parameter</th><th>Default</th><th data-type="number">Minimum</th><th data-type="number">Maximum</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) </td><td>1.496</td><td>1.181</td><td>2.087</td></tr><tr><td>A05 Pipe Perimeter </td><td>4.698</td><td>3.709</td><td>6.552</td></tr><tr><td>A06 Pipe thickness </td><td>0.126</td><td>0.039</td><td>0.236</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>1.244</td><td>0.709</td><td>2.008</td></tr></tbody></table>

### FU-ES040 (inch)

<table><thead><tr><th>Parameter</th><th>Default</th><th data-type="number">Minimum</th><th data-type="number">Maximum</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) </td><td>1.890</td><td>1.417</td><td>2.559</td></tr><tr><td>A05 Pipe Perimeter </td><td>5.934</td><td>4.45</td><td>8.035</td></tr><tr><td>A06 Pipe thickness </td><td>0.146</td><td>0.039</td><td>0.256</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>1.598</td><td>0.906</td><td>2.48</td></tr></tbody></table>

### FU-ES050 (inch)

<table><thead><tr><th>Parameter</th><th>Default</th><th data-type="number">Minimum</th><th data-type="number">Maximum</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter) </td><td>2.362</td><td>1.811</td><td>3.071</td></tr><tr><td>A05 Pipe Perimeter </td><td>7.417</td><td>5.687</td><td>9.643</td></tr><tr><td>A06 Pipe thickness </td><td>0.161</td><td>0.039</td><td>0.315</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>2.039</td><td>1.181</td><td>2.992</td></tr></tbody></table>

### FU-ES065 (inch)

<table><thead><tr><th>Parameter</th><th>Default</th><th data-type="number">Minimum</th><th data-type="number">Maximum</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter)</td><td>2.992</td><td>2.283</td><td>3.622</td></tr><tr><td>A05 Pipe Perimeter </td><td>9.395</td><td>7.17</td><td>11.373</td></tr><tr><td>A06 Pipe thickness </td><td>0.161</td><td>0.055</td><td>0.394</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>2.669</td><td>1.496</td><td>3.512</td></tr></tbody></table>

### FU-ES075 (inch)

<table><thead><tr><th>Parameter</th><th>Default</th><th data-type="number">Minimum</th><th data-type="number">Maximum</th></tr></thead><tbody><tr><td>A04 Pipe OD(Outer Diameter)</td><td>3.504</td><td>2.756</td><td>4.724</td></tr><tr><td>A05 Pipe Perimeter </td><td>11.002</td><td>8.654</td><td>14.835</td></tr><tr><td>A06 Pipe thickness </td><td>0.213</td><td>0.059</td><td>0.472</td></tr><tr><td>A07 Pipe ID(Inner Diameter)</td><td>3.079</td><td>1.811</td><td>4.606</td></tr></tbody></table>

> 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/read-write-memory-read-list) for the Modbus command format. This parameter uses the Int16 data format.