Tds Parameter; Instrument Setup Menu - Dostmann pH 7 Vio Manuel D'utilisation

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 measure mode press
•
Use the directional keys to move to TDS SETTINGS P4.0 and access the menu by pressing the key
•
.
• Press again to access the TDS FACTOR P4.1 program.
• When the value flashes, use the directional keys as indicated by the icon
value and confirm with
By default, the TDS factor is set at 0.71; the user can change it between 0.40 ... 1.00.
Here below, the TDS factors in relation to the Conductivity value are shown:
The TDS measurement is expressed in mg/l or g/l depending on the value.

Instrument Setup menu

• In measure mode, press key
• Use the directional keys to move to SETTINGS P9.0 and access the menu by pressing the key
• Move with the keys
The table below shows the setup menu structure for the general settings of the instrument; for each
program, there are the options that the user can choose and the default value:
Program Description
P9.1 TEMPERATURE U.M.
P9.3 BACKLIGHT MODE
P9.4
BRIGHTNESS
P9.5 SLEEP MODE
P9.6* SELECT PARAMETER
P9.8 RESET
P9.9 AUTO POWER-OFF
* Function available for PC 7 Vio only.
Series 7 Vio ENG Version 2.0 April 2020
to access the SETUP menu.
.
Conductivity of the Solution
1-100 µS/cm
100 – 1000 µS/cm
1 – 10 mS/cm
10 – 200 mS/cm
to access the SETUP menu.
and to select the program to access.
°C / °F
INDOOR – OUTDOOR
LOW – NORMAL - HIGH
OFF – 2 MIN – 5 MIN
YES – NO for each parameter
YES - NO
YES – NO
30
to enter the correct
TDS Factor
0.60
0.71
0.81
0.94
Options
.
Factory Default
Settings
°C
INDOOR
NORMAL
2 MIN
YES
NO
NO
EN