> 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-tx320-english-v1/parameters/a-measurement-setup/a02-preset-pipe-spec.md).
# A02 Preset Pipe Spec
### Definition
This function is used to select the piping specifications used by the flow meter, with CNS PVCU as the default.
Pipe Spec Options (Metal) Pipe Spec Options (Plastic) Pipe Spec Options (Others) ASTM SCH40 SUS ASTM SCH80 SUS ASTM SCH120 SUS JIS G3459 SCH40 ISO SUS PFA DIN1850 SUS Cooper Type L CNS W CNS E JIS K6742 ASTM SCH40 ASTM SCH80 ASTM SCH120 ISO 15494 PP-H ISO 10931 PVDF ISO 8061 PVC-U ISO 4427 PE ISO 15493 ABS PFA
### Notes
1. 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。
2. Tube specifications vary depending on the model and firmware version. Confirm the machine’s model and version to select the correct tube specification table. To check the model and version, follow the steps below:：
H12 System Info Startup Screen Access parameter H12 – System Info to verify the device model and main unit version.
2604 : Device firmware version (identical to the version shown on the startup screen)D0002 and S10 : Hardware versionThe startup screen is displayed for approximately three seconds after the flowmeter is powered on.
LORRIC : TrademarkFU-TX320 : Device model v2604 Device firmware version
### Operation Procedure
Button Functions (Click to Expand)
A02 Present Pipe Spec 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 A02 Preset Pipe Spec, press Orange Button (Enter).
• Use Gray Arrow Buttons to choose the pipe specification.
• Press Orange Button (Set) to confirm.
• Press Blue Button (ESC) to return to the main screen (green backlight).
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**Orange Button (rightmost):** Rightmost button: Enter settings, edit, or confirm selection
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**Do not hold buttons for extended periods to avoid damage.**
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{% hint style="info" %}
Button functions may change depending on the operation context to improve usability or prevent accidental presses.
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