Lumel N31U - Description of the Frontal Plate

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N31U User manual
All the events of deleting of saved minimum, maximum values and alarm
activation memory are indicated by the meter by displaying an appro-
priate message.
5.3 Programming meter parameters
Programming meter parameters is possible via the RS485 interface and by
direct edition of the parameters using the buttons and the meter display.
Direct programming process is easy thanks to meter menu, which inclu-
des the settings grouped into sections with all parameters related to a gi-
ven functionality, e.g. all parameters of the serial interface are grouped in
the menu .
Switching from a normal operation to meter menu is possible by pressing and
holding for at least 3 seconds the conrm button . If access to change
the parameters is password protected, the user will be requested to enter the
access password before entering the menu. Entering an incorrect password
Cancel button:
• Exiting the menu and exit to the main screen.
• Exiting a lower level of the menu and return to a higher level.
• Canceling changing the set value (when editing the parameter value)
Digit change button:
• Navigating the menu - decreasing the items of the menu.
• Decreasing the controlled quantity while editing a parameter and setting selection from
the list of settings, e.g. alarm type.
• Changing the controlled digit when setting numerical parameters.
• Pressing the button during a normal operation displays a minimum value for 2 se-
conds, then the display returns to displaying a measuring value.
Increase value button:
• Navigating the menu - increasing the items of the menu.
• Increasing the value of the selected parameter or increasing the value of a digit when
changing the numerical value.
• Pressing the button during a normal operation displays a maximum value for 2
seconds, then the display returns to displaying a measuring value.
Conrm button:
• Entering the programming mode (holding down the button for at least 3 seconds).
• Navigating the menu - entering the parameter value editing mode or entering the
selected lower level of the menu.
• Accepting the changed parameter value.
Deleting minimum value. DELMIN message is displayed after deleting.
Deleting maximum value. DELMAX message is displayed after deleting.
Deleting alarm memory - hold down the buttons for 3 seconds. ClrAL message will be
displayed after deleting alarm memory.