Thermo Fisher Scientific CyberScan DO 5000 - Manual (Page 90)

Instruction Manual CyberScan DO5000
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At this point, the initial DO and all of the above information about the
sample will be stored in the data log. After an incubation period of at
least one day, the DO of the sample must be measured again.
Final DO Measurement
1. Access the BOD mode from the main mode screen.
2. Once the DO reading is stable, touch BOD.
3. Using the Manual ID numeric touch pad, key in the sample bottle
ID number.
If the meter’s bar code feature is employed, simply scan the bottle to
record its bottle ID number.
If, at this point, the meter matches the above sample parameters in
the memory and the sample date, it accepts the current DO
measurement as a final measurement. Using this value along with
the initial DO value and associated information, a BOD for the sample
is calculated, and displayed on the screen along with associated test
parameters, including the average BOD value based on all samples
that have the same description and starting date.
.