DO700-en-GB_v2.3 3/15
18
Parameter Settings
Prompt
Parameters
Code
Selections
P1
Resolution selection
0.01/0.1(mg/L and ppm)
0.1/1(%)
P2
Salinity calibration
Refer to explanation below
P3
Barometric pressure setting
66 to 200kPa
P4
Temperature unit setting
o
C/
o
F
P5
Back light display time setting
0-1-3-6 min
P6
Auto power off time setting
0-10-20 min
P7
Restore to producer setting
OFF-On (shut-set)
P1 - Resolution selection
Press the MODE key to enter the P1 parameter mode.
Use the CAL key to select the resolution: 0.01
→
0.1;
Press the MODE key to enter into the next parameter setting or press ENTER to return to
the normal measurement mode.
P2 - Salinity Auto-Compensation
From the P1 parameter, press the MODE key to enter P2.
Immerse the DO electrode in the 12.88mS/cm calibration solution (the solution level should
cover the electrode). After stirring, allow the electrode to rest in the solution and press the
CAL key. When the value stabilizes, the smile face icon appears on the LCD along with a
flashing “12.9”. The calibration will finish after several minutes and will display a stable
value.
Press the MODE key to enter the next parameter or press ENTER to confirm and return to
the measuring mode.
P3 – Manual Barometric Pressure setting
From P2, press the MODE key to enter P3, the LCD will display the current barometric
pressure value (unit of measure is kPa), for example, 101.3kPa.
Use the CAL or RM key to change the setting (refer to the standard Barometric pressure
table). Press and hold CAL or RM to quickly scroll the value.
Press MODE to move to the next parameter or press ENTER to confirm and return to the
measuring mode.
