A07 Pipe ID (Inner Diameter)

Definition

Set the pipe inner diameter. Default values vary depending on the selected pipe unit.

DN	Unit	Default	Minumum	Maximum
DN	Unit	Default	Minimum	Maximum
DN8	mm	9.8	1	14
DN8	inch	0.4724	0.0393	0.5511
DN10	mm	13.4	7	20.6
DN10	inch	0.7086	0.0275	0.8110
DN15	mm	16.6	5	29
DN15	inch	0.8661	0.1968	1.1417
DN20	mm	20.6	7	33.4
DN20	inch	1.0236	0.2755	1.3149
DN25	mm	25.6	12	41
DN25	inch	1.2598	0.4724	1.6141

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 A07 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)

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:

• Blue Button - Leftmost button: Return, exit, or save settings.

Gray Arrow Buttons:

• Left Gray Button: Page up, increase value, or select item

• Right Gray Button: Page down, decrease value, or select item

• Orange Button: Rightmost button: Enter settings, edit, or confirm selection

Do not hold buttons for extended periods to avoid damage.

Button functions may change depending on the operation context to improve usability or prevent accidental presses.

A07 Pipe Inner Diameter 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 A07 Pipe Inner Diameter, 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).

A07 Options, RS485 Values, Read/Write Commands, and Formats

Refer to the table above	Refer to the table above	Refer to the table above
Default	Refer to the table above	-
Minimum		-
Maximum		-

Refer to the Read/Write Memory List for the Modbus command format. This parameter uses the float 32 data format.