H System

H02 LCD Bri. (LCD Brightness)

Adjusts the brightness of the LCD display. Three levels are available: High, Medium, and Low. The default setting is Medium.

Options	RS-485 Numbers	Remarks
Low	0
Mid	1	Default
High	2

After selecting a command, confirm whether to Save or Not Save.

H03 Green Light

Defines the duration for which the green LCD backlight remains active. Options: 10 seconds, 60 seconds, or Always On. The default setting is Always On.

Options	RS-485 Numbers	Remarks
60s	0
Always On	1	Default
10s	2

After selecting a command, confirm whether to Save or Not Save.

H04 Language

Selects the display language. Currently available options: English, Traditional Chinese.

The default language is English.

Options	RS-485 Numbers	Remarks
Traditional Chinese	0
English	1	Default

After selecting a command, confirm whether to Save or Not Save.

H05 Paddle Init. (Paddle Initialization)

Press "Start" to initialize the paddle. User needs to rotate the paddle at least 20 rounds until the screen shows "Init. Succeed". If screens shows "Init. Failed", please try again. If the problem persists, please replace your paddle.

Options	RS-485 Numbers	Remarks
No	0
Yes	1

After selecting a command, confirm whether to Save or Not Save.

H06 Reset (Restore Factory Defaults)

Clears all custom settings and restores factory default values.

Options	RS-485 Numbers	Remarks
No	0
Yes	1

After selecting a command, confirm whether to Save or Not Save.

H07 Lock Device (Password Protection)

Enables the password protection feature to restrict unauthorised access to the settings page. The password can be configured via H08.

The default setting is Disabled.

Options	RS-485 Numbers	Remarks
Off	0	Default
On	1

After selecting a command, confirm whether to Save or Not Save.

H08 Password (Password Configuration)

Allows modification of the four-digit password to prevent unauthorised access to the settings page. Password protection must be activated in H07.

The default password is 4321 (for older firmware, the default password is 0000).

Default Password	Value
Data Type	int
Default Password	4321
Minimum	0000
Maximum	9999

After selecting a command, confirm whether to Save or Not Save.

H09 Engineering Mode

This mode is intended for manufacturer use only. Do not modify any settings. The item cannot be modified via RS485.

H10 System Info. Pass (System Information)

Displays essential system information, including firmware version and hardware details. The item cannot be modified via RS485.

H11 Home Page (Startup Display)

Defines the default display shown on the startup screen. The default setting is Instantaneous Flow Rate.

Options	RS-485 Numbers	Remarks
Flowrate	0	Default
Hybird	1
Status Page	2
Total <L>	3
Flowrate<L>	4
Total	5

After selecting a command, confirm whether to Save or Not Save.