A04 Damping

Definition

• A04 Damping: Smooths flow measurement data. Default: 3.

• Higher value → smoother display, smaller fluctuations, slower response.

• Lower value → faster response, more sensitive to flow disturbances, larger fluctuations.

Notes

1. Process Monitoring Application: It is recommended to set A04 higher than the default value to improve display stability and readability, reducing the effect of short-term fluctuations on the displayed value.

2. Process Control Application: It is recommended to set A04 lower than the default value to minimize measurement delay, allowing flow changes to be reflected in the control system in real time.

3. Function Description: A04 only affects the smoothness of the display and output; it does not affect the actual measurement accuracy of the flowmeter.

4. Setting Confirmation: After adjusting A04, it is recommended to observe the system operation for several minutes to verify that the setting meets the application requirements.

5. Usage Reminder: Setting A04 too high may cause delayed response to flow changes. Adjust according to the actual application scenario.

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 Direction Buttons:

  • Left Gray: Previous Page, decrease value, or select item

  • Right Gray: Next Page, increase 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

A04 Damping Setting Steps
• From the main screen(green backlight), 
press Orange Button(Setup) to enter settings (orange backlight).
• Select A. Measurement by pressing Orange Button(Enter).
• Use Gray Arrow Buttons to select A04 Damping, press Orange Button(Enter).
• Use Gray Arrow Buttons to choose the digit to adjust(highlighted in dark gray).
• Adjust digits: Left Gray Button to increase, Right Gray Button to decrease.
• Press Orange Button(Set) to save the adjusted value.
• Confirm by pressing Orange Button(Save) (or Blue Button(NOT) to cancel).
• Press Blue Button(ESC) to return to the main screen(green backlight).

A04 Options, RS485 Values, Read/Write Commands, and Formats

Parameter Input Range	RS485 Value
Default	3
Minimum	0
Maximum	600