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

10.6 Card capacity and store time

Lp Store Interval setting only

NX-43EX
Lp store time SD card capacity
512 MB 2 GB 32 GB
100 ms 56 hours 243 hours 3,540 hours
200 ms 116 hours 468 hours 7,040 hours
1 s 579 hours 2,260 hours 34,490 hours

Leq Store Interval setting only

NX-43EX
SD card capacity
512 MB 2 GB 32 GB
Data sets 1,260,000 sets 5,100,000 sets 77,880,000 sets

Number of bytes per header file

Approx.1,555 Byte per file

The measurement time / number of data sets increases as the number of measurement channels decreases.

Number of channel(s) Measurement time compared to measuring with 4 channels
1 Approx. 2.4 times as long
2 Approx. 1.6 times as long
3 Approx. 1.2 times as long