H Category Options and Descriptions

H01 LED Bri. (LED Brightness)

Adjusts the brightness of the LED indicator. 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.

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 (Power Saving Mode for Green Backlight)

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
60 seconds	0
Always On	1	Default
10 seconds	2

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

H04 Language (Language Settings)

Selects the display language. Currently available options: English, Traditional Chinese, and Simplified Chinese. The default language is English.

Options	RS-485 Numbers	Remarks
Traditional Chinese	0
English	1	Default
Simplified Chinese	2

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).

Parameter Input Range	Value
Data Type	int
Default Password	4321
Minimum	0000
Maximum	9999

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

H09 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
Status Page	1
Dosing	2
Total (L)	3
Velocity (L)	4
Flowrate (L)	5
Total	6
Velocity	7

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

H10 Debug Page (Diagnostics Display)

Activates the diagnostics display. After enabling, return to the main screen and capture the displayed debug information to share with the manufacturer for troubleshooting assistance.

Options	RS-485 Numbers	Remarks
OFF	0
ON	1	Default

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

H11 Engineering Mode

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

H12 System Info. Pass (System Information)

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

H13 Pipe Sensor System (Pipe Diameter Sensor System)

Configures or displays data related to the pipe diameter sensing system. The item cannot be modified via RS485.