Thermo Fisher Scientific CyberScan 6000 Series Meters v.2 - Manual (Page 67)

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DO Operation: SOUR Measurement
DO6000 and PCD6500 meters
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This mode is used to measure Specific Oxygen Uptake Rate (SOUR). The SOUR is used to
determine the oxygen consumption or respiration rate, is known as the milligram of oxygen
consumed per gram of volatile suspended solids per hour. Remember to setup your SOUR
measuring mode parameter from the SOUR Setup screen.
To Take SOUR Measurements
1. Touch SOUR Start icon to being SOUR measurement.
2. The screen will indicate the test is in progress with RUNNING and a timer on the main
screen (the time the test is run is setup in the SOUR Setup option, see page 76). The
SOUR value in mg/hr/g and the DO reading appears as mg/L.
3. To end the SOUR test, touch Stop SOUR icon or let the timer expire.
If you touch the Stop SOUR icon before the timer expires, you will get a message
indicating your measurement reading might not be accurate.
If you let the timer expire, the message states the measurement has been stopped.
4. Touch OK to confirm either message.
5. Another dialog box appears asking if you wish to save current SOUR result. Touch OK to
save or Cancel to erase and return to SOUR measurement screen.
6. If you touched OK, a new dialog box appears to ask if you want to view the results.
Touch OK to proceed to the Result View screen showing SOUR value and other
important test details.
7. Touch Exit to exit Result View screen and return to SOUR measurement screen. Touch
Delete All to delete all SOUR test results in memory. OR Touch Print to send the SOUR
test results to a computer or printer.
SOUR measurement in progress. SOUR Measurement View Result
Screen