5-2 Dissolved Oxygen ( DO) measurement
1)After the meter be calibrated ( above procedure 5-1 ),
the meter is ready for DO measurement.
2)Slide the " O2/DO selector " ( 4-11, Fig. 1 ) to the " DO "
position.
3)"% Salt" compensation of the probe :
a. Push the " % Salt button " ( 4-10, Fig. 1 )
first, and the display will show. :
0 %
S
b. Push the " Factor Adj. button " ( 4-8, Fig. 1 ) once
will add " 1 % " to the original salt % value until the
adjusting reading reach the desired salt values.
Then push the " % Salt button " ( 4-10, Fig. 1 )
again to finish the adjusting procedures. At this
moment the new % salt values will be executed.
c. If the measured liquid is the pure water or the
factor of salt % can be neglected, then adjust %
salt compensation value to 0%.
4)"Height" compensation of the probe :
Bear in mind that the DO measurement is considered
to be taken at sea level. However if the measuring
environment is not at sea level ( 0 meter ), then
should adjust the " Height " values for the probe
compensation when make the DO measurement.
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