Class 1 Sound Level Meter NL-53 / Class 2 Sound Level Meter NL-43
with Extended Function Program NX-43EX Instruction Manual Operation Guide

6.9 Restoring factory default settings

To return the settings to the default values, follow the procedure below.

1Touch [Save/Load Settings] at the bottom of the [Menu] screen.

2Touch [Default Settings].

3Touch [YES] on the confirmation screen.

The setting returns to the default values (“Default settings”).

Note

• The time, language and store data are not initialized.

Default settings

The factory default settings for the main setting items are listed below. For information on how to restore the default values, refer to “Restoring factory default settings” .

Item			Default settings
System	LCD	Brightness	2
		Backlight Auto Off	30s
		LCD Auto Off	Continue
	Power	Battery Type	Alkaline
	Security	User Name	USER
		Password	0000
		Key Lock	No Password
	System Information	Index	0001
Display	Bar Graph	Upper Range	130dB
		Lower Range	30dB
	Leq Calc.	Leq	On
		LE	Off
		Lpeak	Off
		Lmax	On
		Lmin	Off
		L5.0	Off
		L10.0	Off
		L50.0	On
		L90.0	Off
		L95.0	Off
		LIeq	Off
		Leq, mov	Off
		Ltm5	Off
	Time-Level		20s
Measure	Sub Channel Settings	Sub1	Off
		Sub2	Off
		Sub3	Off
	Frequency Weighting	Main	A
		Sub1	A
		Sub2	A
		Sub3	A
	Time Weighting	Main	F
		Sub1	F
		Sub2	F
		Sub3	F
	Windscreen Correction		Off
	Diffuse S.F. Corr.		Off
Store	Store Mode		Manual
	Store Name		0000
	Address		0001
	Meas. Duration		10m
	Back Erase		Off
	Delay Time		Off
	Trigger Mode		Off
I/O	Ref. Signal Output		Off
	Signal Output	AC OUT	Off
		DC OUT	Off
	I/O Port		N/A
	USB		N/A
	LAN		N/A