A12 Liquid Soundspeed

Definition

Set the liquid Soundspeed. Default: custom.

The sound speed of a fluid varies with temperature. Please refer to the Liquid Temperature vs. Sound Speed Reference Table.

Definition

1. When the user sets A10 (Fluid Type), A12 (Fluid Sound Speed) will be updated accordingly based on the A10 selection.

2. The unit of A12 is determined by B04 (Flow and Sound Speed Unit).

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.

A12 Liquid Soundspeed 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 A12 Liquid Soundspeed, 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).
• Press Blue Button(ESC) to return to the main screen(green backlight).

A12 Options, RS485 Values, Read/Write Commands, and Formats

Input Range of This Parameter	Corresponding Values	RS-485 Value
Default	1482	-
Minimum	100	-
Maximum	3000	-

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