Xylem IQ SensorNet ViSolid 700 IQ (SW) - Manual (Page 34)

Measuring ViSolid
®
700 IQ (SW)
4 - 6 ba76040e02 07/2013
Determining the
Correction factor
Setting the Correction
factor
Note
The Correction factor setting affects each TSS measuring mode and all
calibration data. Also, if there is a change of the measuring mode or
calibration data, the Correction factor is retained.
Therefore, after every change of the settings in the Calibration data
menu, check the Correction factor.
1 Bring the sensor into the measuring position.
2 In the setting table of the TSS sensor, note down the currently
set Correction factor as the value for F
A
.
3 Switch to the measured value display with .
4 When the measured value is stable, read the TSS value,
convert it into the unit (mg/l) if necessary,
and note it down as the value for Sv.
5 Take a sample as close to the same time as the TSS
measurement as possible and as close to the sensor as
possible.
6 Determine the level of total suspended solids of the sample
according to a reference procedure (e. g. gravimetric
according DIN 38414), convert it into the unit (mg/l) if
necessary,
and note it down as the value for S
R
.
7 Calculate the Correction factor.
F
N
= F
A
* S
R
/S
V
8 Set the new Correction factor in the Calibration data menu (see
section 3.5.3).