人機介面簡介

LCD screen displays 3 rows of information

Prolonged or excessive pressure on the buttons may cause damage. Avoid pressing and holding buttons for extended periods.

The main unit is equipped with four control buttons, and the bottom line of the LCD screen displays the current function assigned to each button.

• The leftmost button generally functions as “Exit” or “Back” to return to the previous screen.

• The two central buttons allow the user to navigate between pages, adjust values, or select options.

• The rightmost button typically serves as “Enter”, “Confirm”, or “Set”.

Please note that these definitions apply under standard operating conditions. In certain situations, the button functions may be intentionally redefined to improve usability or to reduce the risk of unintended operation.

Prolonged or excessive pressure on the buttons may cause damage.

Avoid pressing and holding buttons for extended periods.

LCD Three-color large indicator lights

LCD Backlight Status Indicators

The LCD display is equipped with three-colour backlighting, with the following status definitions:

• Green: The unit is operating normally, displaying real-time information, and all values are within the specified operational range.

• Flashing Red: A critical system alarm (Alarm A) has been triggered. Refer to the alarm warning page for further details.

• Solid Red:

  • Alarm B: A user-defined condition has been met — operator attention is required.

  • Alarm C: The internal real-time clock battery requires replacement.

• Amber (Orange): The unit is functioning normally, and the screen is currently displaying historical data or parameter configuration menus.

Frequency Refresh Rate

Due to the high-frequency nature of real-time flow measurements, the device continuously refreshes the LCD display. However, a delay of approximately 0.1 seconds may exist between the internal data acquisition and the displayed value.