A21 Auto Initialize

Definition

Auto-detect fluid ultrasonic velocity to complete environmental parameter setup after mechanical installation, electrical installaton and parameter configuration.

The function starts only after pressing Start. Upon execution, it will automatically update the Z03 (Auto Initialization) settings.

Currently, A21 does not support Modbus read/write command operation.

Notes

1. This step must be performed when the pipeline is fully filled with liquid. If A21 is executed when the pipeline is not full, it may cause flow measurement errors and fluctuating readings. If this occurs, repeat A21 under fully filled conditions.

2. The Auto Initialization of A21 must be performed with the pipeline full. Whether the fluid is flowing or stationary does not affect the result.

3. Each time the system is reinstalled or the pipeline size/material is changed, this function should be executed again.

4. The A21 function is equivalent to Z03, and the user may choose to execute either one. (Z-series parameters are designed for quick setup, mainly during installation, consolidating multiple necessary parameters into a single series for faster completion.)

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.

A21 Auto Initialize Setting Steps
• From the main screen (green backlight), 
press Orange Button (Setup) to enter settings (orange backlight).
• Use Gray Arrow Buttons to select A. Measure , press Orange Button (Enter).
• Use Gray Arrow Buttons to select A21 Auto Initialize, 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).