Rion NL-21 - Page 102

90
Store Operations
7. Use the "Auto 1 Samp." item to set the sampling interval for the sound
level or equivalent continuous sound level. Use the key to move the
highlight, and use the and keys to select the setting.
For sound level measurement, you can select 100 ms, 200 ms, or 1 s.
For equivalent continuous sound level measurement, the L
Aeq,1 sec
setting
causes the L
eq
to be continuously stored at 1-second intervals.
For normal Auto 1 store without using the timer mode, proceed to step 9.
8. Set the "Start" date and time (month, day, hour, minute), and then the
"Stop" date and time (month, day, hour, minute). (There is no setting
for the year.)
9. Use the Page Up/Down keys to display the menu screen 1/5.
Use the and keys to move the cursor to the "Meas. time" item,
and use the and keys to select the measurement time.
Manual → 10 sec → 1 min → 5 min → 10 min → 15 min → 30 min
→ 1 hour → 8 hours → 24 hours → Manual → ...
10. Press the Menu key to return to the measurement screen.
11. Set the frequency weighting (A/C/FLAT) and time weighting (Fast/
Slow) to the desired setting.
12. Use the Level Range keys to select the level range. When measuring
environmental noise, select the range of 100, 110 or 120 dB.
If the "
O v
" (Over) or "
U n
" (Under) indicators light up frequently,
change the level range setting.