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

5.5 Message display

When you press the START/STOP key or PAUSE/CONT key, one of the following messages will be displayed for about 1 second.

Display	Description
	Appears when the START/STOP key is pressed, and the measurement starts.
	Appears when the START/STOP key is pressed and measuring is finished.
	Appears when the PAUSE/CONT key is pressed and display or measuring is paused. II （Manual） The device will be paused in the measurement state, and this symbol will flash in the upper right corner. II The device will be paused in the current state, and this symbol will be displayed in the upper right corner.
	Appears when the PAUSE/CONT key is pressed while measuring when back erase is set (“Back Erase (Manual mode)”).
	Appears when the PAUSE/CONT key is pressed to resume display or measuring.