Xylem DO600 Dissolved Oxygen Meter - Manual (Page 10)

DO600 - Version 5.0 8/05 10
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.