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Operation
Setup ODO
→
Setup
→
ODO
Local DO
: Enable or disable localized DO% measurements. When enabled, the
calibration value is set to 100% regardless of altitude or barometric pressure.
When enabled, an L will be shown next to DO% on the run screen. DO mg/L mea-
surements are unaffected when Local DO is enabled.
LDS
: Last Digit Suppression (LDS) rounds the DO value to the nearest tenth,
e.g.
8.27 mg/L becomes 8.3 mg/L.
Sensor Cap Coefficients
: The sensor cap coefficients must be updated after
sensor cap replacement. Update the sensor cap coefficients using the coefficient
sheet provided with the new sensor cap. Once updated, the coefficients are saved
to the ODO sensor and do not need to be re-entered.
NOTE:
The coefficients stay with the sensor even when used with different
handheld meters.
Setup pH
→
Setup
→
pH
Select USA auto-buffer recognition (4.00, 7.00, and 10.00) or NIST auto-
buffer recognition (4.01, 6.86, and 9.18). Calibration values are automatically
compensated for temperature for both buffer sets.
Setup Turbidity
→
Setup
→
Turbidity
TSS Coefficients
: Total Suspended Solids (TSS) can be measured if correlation
coefficients are calculated in Kor.
To obtain these coefficients, collect turbidity data at the sampling site with
corresponding grab samples. Analyze the samples in a lab to determine a true
TSS measurement (mg/L). At least 2 and up to 6 value pairs of turbidity and TSS
measurements can be used.
Correlation data must be collected for each unique sampling site, as this
correlation is site-specific.
In Kor Software, enter the field-obtained turbidity measurements and the
corresponding lab-obtained TSS measurements in the Instrument and Sensors
menu. Coefficients can then calculated with Kor Software and sent to the sensor.
NOTE:
Although correlation coefficients can be entered directly into the
handheld, only Kor Software can calculate the coefficients.