YSI CarboVis 705 IQ TS - Manual (Page 25)

CarboVis 70x IQ TS
Measuring / Operation
4 - 1 ba75950e02 11/2012
4 Measuring / Operation
4.1 Determination of measured values
Fig. 4-1 Determination of measured values
During a measurement, the absorbance spectrum of the test sample is
recorded and set against the stored absorbance spectrum of a zero
adjustment (measurement in ultrapure water). The algorithm for the
calculation depends on the selected application and/or the measuring
location. The resulting raw value can be adjusted to an independent
reference measurement with the aid of a so-called user calibration.
Absorbance spectrum
of zero adjustment
Absorbance spectrum
of measurement
Physical sensor, series number xxx
Main
sensor
software Second. sensor
& virtual sensor
software
Main sensor meas. mode
(algorithm)
User calibration data
of main sensor
Main sensor raw value
Meas. value of main sensor
Secondary sensor
raw value & virtual sensor
Meas. value of sec. sensor
& virtual sensor
Second. sensor
& virtual sensor
meas. mode (algorithm)
User calibration data
of secondary sensor
& virtual sensor
IQ Sensor Net