DO600-en-GB_V7.4 12/16
12
Operational
Matrix
for
the
Model
DO600
Function
/
Resulting
Action
Power
Status
Mode
Setting
Required
Button
Press
Sequence
Comments
On/Off
Any
Any
Momentary
press
of
the
ON/OFF
button
Water
Saturated
Air
Calibration
On
Any
Place
Electrode
in
Calibration
Cap
Press
&
hold
CAL/RECALL
button
for
2
seconds
Zero
Calibration
On
Any
Place
Electrode
in
Zero
Solution,
wait
for
stability
Press
&
hold
CAL/RECALL
button
for
2
seconds
Also
works
with
probe
removed
(Cal
at
zero
current)
Store
Reading
On
Any
Momentary
press
of
the
MODE/HOLD
button
Stores
and
holds
reading
“HOLD”
displayed
Hold
Release
On
While
In
Hold
Mode
Momentary
press
of
the
MODE/HOLD
button
Enter
Memory
Retrieval
On
Any
Momentary
press
of
the
Cal
button
followed
by
a
momentary
press
of
the
MODE/HOLD
button
(w/in
4
seconds)
If
no
data
is
stored
in
memory,
“End”
is
displayed
briefly,
and
then
returns
to
last
mode.
Scroll
Stored
Readings
On
Memory
Recall
Momentary
press
of
the
MODE/HOLD
button
Exit
Memory
Retrieval
On
Memory
Recall
Momentary
press
of
the
CAL/RECALL
Clear
Stored
Memory
On
Any
Measure
‐
ment
Mode
Press
and
hold
the
ON/OFF
button
for
4
seconds
“clr”
is
displayed.
Change
Measurement
Mode
On
Any
Press
and
hold
the
MODE/HOLD
button
for
at
least
two
seconds
(the
modes
will
scroll
until
the
button
is
released)
Enter
Salinity
Compensation
On
Any
Press
and
release
the
CAL/RECALL
button
twice
(momentary)
in
succession
(Displays
SAL)
Changing
Salinity
Compensation
On
SAL
Momentary
press
of
the
MODE/HOLD
button
(each
button
press
increases
the
ratio
by
1
ppt
(part
per
thousand),
the
value
cycles
from
0
to
50)
Exit
Salinity
Compensation
On
SAL
Press
and
release
CAL/RECALL
button
for
2
seconds
to
enter
Altitude
Compensation,
Or
Press
and
release
Cal
Button
one
more
time
to
enter
measurement
mode
It
is
necessary
to
press
the
CAL/RECALL
button
to
save
changes.
If
the
unit
times
out,
no
changes
are
saved.
Enter
Altitude
Compensation
On
Any
or
SAL
Press
CAL/RECALL
twice
(momentary).
Unit
enters
Salinity
Mode.
Press
CAL/RECALL
for
2
seconds
to
enter
Altitude
Compensation
Mode.
(Displays
Ald)
Unit
times
out
in
5
seconds
if
no
button
is
pressed,
reverts
to
previous
mode.
Changing
Altitude
Compensation
On
Ald
Momentary
press
of
the
MODE/HOLD
button(each
button
‐
press
increases
altitude
by
1,000ft,
the
value
cycles
from
0
to
20)
Exit
Altitude
Compensation
On
Ald
Momentary
press
CAL/RECALL
button
to
exit
and
save
changes.
It
is
necessary
to
press
the
CAL/RECALL
button
to
save
changes.
If
the
unit
times
out,
no
changes
are
saved.
Change
Temperature
Units
Off
n/a
(off
mode)
Press
and
hold
the
CAL/RECALL
button
then
momentarily
press
the
ON/OFF
button.
Release
the
CAL/RECALL
button
after
the
"SELF
CAL"
lights
Override
Autopower
Off
On
Any
Press
CAL/RECALL
button
(momentary)
then
simultaneously
press
and
hold
the
MODE/HOLD
and
ON/OFF
buttons
for
for
2
seconds.
Default
Reset
Off
n/a
(off
mode)
Simultaneously
press
ON/OFF,
CAL/RECALL
and
MODE/HOLD
momentarily.
“dFLt”
will
be
displayed.
