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Thermo Fisher Scientific CyberScan DO 5000 User Manual

Page 77

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Instruction Manual

CyberScan DO5000

74

Measuring DO with Auto Read ON

The measure screen provides a readout of the current sample
measurement. If Auto Read is active, the meter will lock onto a
reading until meas is touched. If Auto Read is inactive, the meter will
continuously monitor the DO and the reading will indicate any change
in the DO level, Regardless of the status of the Auto Read mode, a
STABLE message is displayed when the measurement meets the
stability criteria chosen.

Once the meter has been standardized, you are ready to take DO
measurements.


To Measure DO with Auto Read ON

1. Insert the probe into the sample

2. Provide stirring, such as that provided by the self-stirring BOD

probe.

3. Touch

meas, and permit the reading to stabilize

4. Record the reading


Prior to sample measurement, it is important to verify the salinity of
the sample and enter that’s salinity value using the DO setup menu.


To Measure DO with Auto Read OFF


1. Insert the probe into the sample

2. Provide stirring, such as that provided by the self-stirring BOD

probe.

3. Record the reading when the STABLE message appears.