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

7 Store Operation

This device can save measurement data (calculated values such as sound levels and equivalent continuous sound levels, measurement conditions such as frequency weighting and time weighting) to the internal memory or SD card.
This section describes saving to and loading from the internal memory.
There are three store modes: Manual, Auto, and Timer Auto.

Important

Use SD cards that are genuine and provided by RION. The performance of other cards is not guaranteed (“SD card”).
Do not turn off the power or remove the SD card while in the middle of storing. Doing so may corrupt the data.
Saving to the internal memory is not possible when an SD card is inserted in the card slot.

Note

Prior to measurement, first format the SD card for storing data with this device.

NX-43EX

Precautions when using the environmental measurement data management software AS-60

When processing the measurement data with AS-60, measure with the device set to store in Auto and Timer Auto mode because AS-60 cannot read data stored in Manual mode.

About store mode

Store mode	Description
Manual	All calculated values except sound level L_p are considered as a single data set, and the measurer manually saves each data. When the person taking measurements performs the store operation after measuring, the calculated value that was measured and measurement conditions are saved together with the measurement start time. If the SD card is not installed, data is automatically saved to the internal memory of the main unit. If the SD card is installed, data is automatically saved to the SD card.
Auto	The device performs continuous recording of the time-weighted sound level (L_p) at the configured L_p store interval (L_p store) and continuous recording of the calculation results (L_eq, L_Ieq, L_eq,mov, L_E, L_max, L_min, L_N, L_peak, L_tm5) at the configured L_eq calculation interval (L_eq store). In L_p store, the device simultaneously records L_eq, L_Ieq, L_max, L_min, and L_peak, along with L_p. This mode can be used by installing an SD card. When one of the following conditions occurs, the store is stopped, and data is saved: When the time reaches the set total measurement time. When the number of file splits per hour in L_p store reaches 9,999. When the L_eq store reaches 60,000,000 entries (with files split every 60,000 entries reaching 1,000). When the capacity of the SD card becomes insufficient.
Timer Auto	You can set the start time and stop time and perform auto store. This mode can be used by installing an SD card. By setting the measurement cycle, you can limit L_p store and L_eq calculation to be performed only during the period when store is required. When one of the following conditions occurs, the store is stopped, and data is saved: When the time reaches the set stop time. When the number of file splits per hour in L_p store reaches 9,999. When the L_eq store reaches 60,000,000 entries (with files split every 60,000 entries reaching 1,000). When the capacity of the SD card becomes insufficient.