EXTECH
INSTRUMENTS
8
SDL900
‐
en
‐
GB_V1.4
5/15
Manual
Datalogging
In
the
manual
mode
the
user
presses
the
LOG
button
to
manually
log
a
reading
to
the
SD
card.
For
Manual
Datalogging,
the
sampling
rate
must
be
first
set
to
‘0’
seconds
as
described
in
the
Set
Mode
section
above.
Press
and
hold
the
LOG
button
for
at
least
2
seconds
and
the
DATALOGGER
icon
will
appear
on
the
LCD;
the
lower
portion
of
the
display
will
show
p
‐
n
(
n
=
memory
location
number
1
‐
99).
Momentarily
press
the
LOG
button
to
store
a
reading.
The
DATALOGGER
icon
will
flash
each
time
a
data
point
is
stored.
Use
the
▲
and
▼
buttons
to
select
one
of
the
99
data
memory
positions
in
which
to
record.
To
exit
the
manual
datalogging
mode,
press
and
hold
the
LOG
button
for
at
least
2
seconds.
The
DATALOGGER
icon
will
switch
off.
Spreadsheet
data
example
RS
‐
232/USB
PC
Interface
For
streaming
of
data
to
a
PC
via
the
RS232
Output
jack,
the
optional
407001
‐
USB
kit
(RS232
to
USB
cable
and
driver
CD)
along
with
the
407001
software
(available
free
at
www.extech.com/instruments)
are
required.
AC
Power
Adaptor
This
meter
is
normally
powered
by
six
(6)
1.5V
‘AA’
batteries.
An
optional
9V
power
adaptor
is
available.
When
the
adaptor
is
used,
the
meter
is
permanently
powered
and
the
power
button
will
be
disabled.
