1 rdo calibration calculations, Rdo calibration calculations, Oc c – In-Situ Aqua TROLL 400 Modbus and SDI-12 Reference Guide User Manual
Page 35: Oc c o, Osat o c
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4.17.1
RDO Calibration Calculations
Calibrated Oxygen reading:
RU
RC
O
c
c
O
2
1
0
2
×
+
=
where:
RUZ
RUS
O
O
Sat
O
c
2
2
2
1
%
100
−
=
RUZ
O
c
c
2
1
0
×
−
=
where:
Sat
O
%
100
2
is the theoretical 100% saturation point.
RUS
O
2
is the un-calibrated reading at 100% saturation.
RUZ
O
2
is the un-calibrated reading at 0% saturation.
References:
Standard Methods:
4500-0 C. Azide Modification
35
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