Xylem IQ SensorNet ViSolid 700 IQ (SW) - Manual (Page 33)

ViSolid
®
700 IQ (SW) Measuring
4 - 5 ba76040e02 07/2013
4.2.3 Correction factor
The setting of the Correction factor provides a simple option for
adapting the calibration to the current conditions.
With the Correction factor setting you correct the measured value and
have it indicated on the display.
A change of the Correction factor setting is practical if the measured
values of the ViSolid
®
700 IQ (SW) are generally too high or too low in
comparison to reference measurements by a specific factor.
Fig. 4-3 Effect of the Correction factor on the displayed measured value
The Correction factor is calculated using the following formula:
Variable Explanations
F
N
Correction factor, to be recalculated
F
A
Correction factor, currently set
in the Calibration data menu
S
R
TSS value, newly determined from reference
measurement
S
V
TSS value, newly determined from measurement with
ViSolid
®
700 IQ (SW)
TSS [1000 mg/l]
SiO2 [1000 mg/l ]
0,9
0,7
0,5
0,3
0,1
Correction factor 1.00
Correction factor 0.50
F
N
= F
A
* S
R
/S
V