User Guide

Instruction Manual CyberScan DO5000

1. Touch OUR on the main mode screen.

2. Touch setup to set parameters essential for the OUR calculation.

These include dilution ratio, minimum run time, maximum run

time, minimum DO required to end the test.

3. Touch start to initiate the OUR test.

4. Touch stop to terminate the test at any time.

A timer on the OUR screen will display the time of the test. When the

test concludes, the OUR results in mg/L/hr will be displayed. Touch

print to save the data into the data log, or touch OK to return to the

OUR screen.

The calculation employed for the OUR result is:

OUR= [DO

start

(mg/L) – DO

end

(mg/L) / T

duration

(sec)] * (3600sec/hr)

* dilution ratio = mg/L/hr