16
To calibrate 0 % saturation:
1.
Rinse the probe well with deionized
rinse water or rinse solution.
Do not
touch the membrane.
2.
Press the MODE key
to select the
% saturation mode.
See figure
2.
Place the probe in zero oxygen
solution.
Stir the probe gently to
homogenize the sample. Make sure
that the sample is continuously flowing
past the membrane sensor.
3.
Press the CAL key.
The CAL indicator
will appear above the primary display.
The primary display shows the current
value of the measurement and the
secondary display will show 0.0.
See figure
4.
Wait for the reading to stabilize.
If the
Ready indicator feature is enabled, it
will appear when the reading is stable
(see page 43 for Ready indicator setup).
5.
Press the ENTER key.
The meter auto-
matically calibrates to 0.0% saturation
and returns to Measurement mode.
See figure
Notes
The reading in the primary display in step
3 must read at 10% or under for the calibra-
tion to work correctly. Whenever an error
occurs during calibration, the ERR indicator
appears in the lower left hand corner of the
display.
You can offset your % DO calibration:
see page 40 for directions.
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D
E
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