66
Measurement
Important
Because sampling for L
N
is performed at 100 ms
intervals, a measurement time of 10 seconds or
less will not yield correct results.
5. Use the menu to set the measurement time.
Press the Menu key to call up the menu screen 1/5.
6. 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 → ...
When Manual is selected, the measurement time is controlled by the
operator. The maximum time is 200 hours.
S t a r t
S t o p S t o r e
M o d e
P a u s e
C o n t
F a s t
S l o w
M e n u
P a g e
R a n g e
R e c a l l
F r e q
L i g h t
P r i n t
P o w e r
S O U N D L E V E L M E T E R
R e c a l l
d a t a
D o w n
C a l a d j
C a l
U p
A
C
F L A T
N L - 2 1
F a s t
P a g e
D o w n
U p
A C
F L A T
S l o w
P r e s s i n g t h e M e n u k e y e n a b l e s
t h e P a g e U p / D o w n k e y f u n c t i o n
M e n u k e y
A / C / F L A T k e y
P a u s e / C o n t k e y
F a s t / S l o w k e y
R a n g e k e y s
P o w e r k e y
1 5
< S y s t e m >
M e a s . t i m e : 1 0 m i n
B a c k E r a s e : O f f
C a l M o d e : I n t e r n a l
F i l t e r : O f f
M e a s u r e m e n t t i m e
( a c t u a l t i m e )
M e n u s c r e e n 1 / 5
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