# A06 Pipe Thickness
### Definition
Set the pipe wall thickness. Default values vary depending on the selected pipe unit.
Pipe OD
DN15
DN20
DN25
DN32
Default
mm
2.7
2.7
3.2
3.2
inch
0.106
0.106
0.126
0.126
Minimum
mm
0.5
0.8
1
1
inch
0.02
0.031
0.039
0.039
Maximum
mm
5
5.5
6
6
inch
0.197
0.217
0.236
0.236
Pipe OD
DN40
DN50
DN65
DN75
Default
mm
3.7
4.1
4.1
5.4
inch
0.146
0.161
0.161
0213
Minimum
mm
1
1
1.4
1.5
inch
0.039
0.039
0.055
0.059
Maximum
mm
6.5
8
10
12
inch
0.256
0.315
0.394
0.472
### Notes
1. Pipe size units are determined by **B06 (Pipe Size Unit)**.
2. Each time the pipe size is changed, please re-execute **Z03 Auto Initialize** and **Z04 Auto Zero Offset** to improve measurement accuracy and ensure stable product performance.
3. On certain firmware versions, a pipe material confirmation page will appear after setting **A06 Pipe Wall Thickness**. Please select the matching pipe material or choose **Custom**. If a predefined pipe material is selected, **A08 (Pipe Material)** will be synchronized automatically.
### Operation Procedure
Button Functions(Click to Expand)
When the main screen is displayed in **green backlight**, the four buttons function as follows:
* **Blue Button (leftmost):** 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):** 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 %}
```
A06 Pipe Thickness 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 A06 Pipe Thickness, press Orange Button(Enter).
• Use Gray Arrow Buttons to choose the digit to adjust(highlighted in dark gray).
• Press Orange Button(Edit) to enter adjustment mode.
• Adjust digits: Left Gray Button to increase, Right Gray Button to decrease.
• Press Orange Button(Set) to confirm each digit; repeat for other digits as needed.
• After all digits are set, press Blue Button(Save).
• Confirm by pressing Orange Button(Save) (or Blue Button(NOT) to cancel).
• On certain versions, a “Pipe Material Confirmation” screen will be displayed.
• Use the gray arrow keys to select the matching pipe material or Custom,
then press the orange Set key to confirm.
• Press Blue Button(ESC) to return to the main screen(green backlight).
```
## A06 Options, RS485 Values, Read/Write Commands, and Formats
| Input Range of This Parameter | Corresponding Values | RS-485 Value |
| ----------------------------- | ------------------------ | ------------ |
| Default | Refer to the table above | - |
| Minimum | | - |
| Maximum | | - |
> 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 float 32 data format.
**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 %}
