Galvanic Applied Sciences MONITEK MESSENGER, User Manual

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3.2 Factory Calibration
The user may elect to switch to factory calibration if his measurement data using
the process calibration are not correlating. The factory calibration data may be
copied into the “Process Calibration” menu by selecting “Copy factory table”. A
data fit, on this transferred factory data may now be performed by selecting “Fit
Data”, the unit will use the factory calibration data to report the cell sample
analysis. At the factory, Formazin standards were used to create the calibration
data table. The Sensor is calibrated with at least 3 data points: a nominal 0 FTU
standard, a full-scale standard and a mid point standard. This feature is included
to allow easier troubleshooting by referencing known and factory verified
calibration. Alternatively the Field process calibrations may be checked against
the Formazin or diatomaceous calibration data performed at the factory.