31
Rev. 1 20.12.2019
EN
TDS Parameter
COND 7 Vio, PC 7 Vio
The Conductivity measurement can be converted into the TDS Parameter
This parameter uses the Conductivity calibration; therefore, refer to the previous paragraph to calibrate
the sensor
Total Dissolved Solids (TDS) correspond to the total weight of the solids (cations, anions and non-dissociated
substances) in a liter of water. Traditionally, TDS are determined using the gravimetric method, but a simpler
and faster method is to measure Conductivity and convert it to TDS by multiplying it by the TDS conversion
factor.
In measurement mode press
to access the SETUP menu.
Use the directional keys to move to TDS SETTINGS P4.0 and access the menu by pressing the key
.
Press again
to enter the program TDS FACTOR P4.1
When the value flashes, use the directional keys as indicated by the icon
to enter the correct value
and confirm with
.
By default, the TDS factor set is 0.71; the user can change it between 0.40 ... 1.00.
Below are the TDS factors in relation to the Conductivity value:
Conductivity of the Solution
TDS Factor
1-100 µS/cm
0.60
100 – 1000 µS/cm
0.71
1 – 10 mS/cm
0.81
10 – 200 mS/cm
0.94
The TDS measurement is expressed in mg/l or g/l depending on the value.
Instrument’s Settings
In measurement mode
to access the SETUP menu.
Use the directional keys to move to SETTINGS P9.0 and access the menu by pressing the key
.
Move with the keys
and
select the program you want to access.
Содержание 7 Vio
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