Lutron Electronics SL-4033SD - 10. RS232 PC SERIAL INTERFACE; 11. CALIBRATION

2) Loose the
" Battery Cover
Screws
"
(
3-15, Fig.
I
)
and
take away
the
"
Battery
Cover
"
(
3-17,
Fig, L
)
from the instrument
and remove the battery.
3)Replace
with
DC 1.5
V battery
(
UM3,
AA,
Alkaline/heavy
duty
)
x 6 PCs, and relnstate
the cover.
4)Make
sure
the battery cover
is secured after changlng
the
battery.
The ins,trument
has RS232
PC
serial lnterface vla
a 3.5
mm termlnal
(
3-12,
Flg. 1
).
The data
output ls a
16 diglt stream
whlch
can be
utillzed
for user's speclflc
application.
A RS232
lead wlth
the followlng
connection
will be
requlred
to
link the
instrument wlth
the PC serlal
port.
The 16 digits data
stream
wlll be displayed
ln the
followlng
format
:
10.
RS232 PC SERIAL
INTERFACE
Center
Pln........
(3.5
mm
Jack
plug)
Ground/shield...
I
Pin 4
Pin
Pin
2.2K
reslstor
2l
Each
d
it indicates
the
followi
status
:
RS232
FO
RMAT:
9
600
N
B
1'l Preoare the
optional
"
SOUND
CAUBRATOR
".
such
as
-'
i
st-s+r "
or'"
sC-942
"
(
set
range
to
94'0
dB
)'
Poyver
on
inl
sorna
calibrator
ti
plug calibrator
outp-ut
socket
into
ttt"
"
Microphone
"
head
(
3-9,
FIg'
1
)
of the
Sound
Level
meter.
2)Select
manual
range
to'50
-
100
dB
"
:isetect
"
Time
Weighting
" at "
Fast
"
position'
1
Start
Word
D15
4
D14
send
the
uPPer
disPlaY
data
=
1
send
the
lower
dis
data
=
2
D13
D
for
atocl
r
nun
B=17
D12,
D11
1=N
ative
Polarity
=
Posltive
D10
tion
from
right
to
the
left
becimal
Polnt(DP
),
posi
0=NoDP
1=
1DP
2=2DP
3=3DP
D9
Dlsplay
reading,
D1
=
For
examPle
:
If the
display
reading
is 1234,
then
DB
to
LsD,
D8
=
MSD
D1
ls: 00001234
DB
tO
D1
End
Word
DO
9600
Baud
rate
No
Pa
I
Data
bits
Data
bit
no.
bit
1
bit
11.
CALTBRATION
20