User`s guide

DO700 V1.0 8/09
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.