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TDS factor
TDS factor is a conversion factor used to convert conductivity to TDS by the equation: TDS = Factor x EC
25
.
The TDS conversion factor can be set from 0.40 to 1.00. A typical TDS conversion factor for a strong ionic
solutions is 0.5, while for a weak ionic solutions (e.g. fertilizers) is 0.70.
Example:
TDS factor
0.5 µS/cm x 0.41 = 0.205 ppm NaCl
The default value is 0.50.
This option allows the user to set the TDS factor:
• Press
while in
TDS
mode.
• Press
.
• Use
or
to highlight the
TDS Factor
option
.
• Press
to confirm your selection and use
or
to increase / decrease the value.
• Press
to confirm your selection or press
to
cancel operation.
Sample ID -
see
Conductivity Setup
section.
Log -
see
Conductivity Setup
section.
Alarm -
see
Conductivity Setup
section.
TDS SETUP
The
TDS Setup
menu allows the user to set the parameters related to the TDS measurement. This parameter
must be set on Channel 2.
Accessing TDS Setup
• Press
and then
to select TDS (Total
Dissolved Solids) measurement mode.
• Press
and then
to access
TDS Setup
menu.
To access a
TDS Setup
option:
• Use
or
to highlight the desired option.
• Press
to access the selected option.
The following is a description of the TDS Setup option screens.
Profile -
see
Conductivity Setup
section.
Reading Mode
- see
Resistivity Setup
section.
Temperature
-
see
Conductivity Setup
section.
Units
This option allows the user to set the TDS measuring unit
ppm
(mg/L),
ppt
(g/L) or
AutoRanging
units.
To select the suitable unit:
• Press
while in
TDS
mode.
• Press
.
• Use
or
to highlight the
Units
option.
• Press
to confirm and then use
or
to
highlight the desired unit.
• Press
to confirm your selection or press
to
cancel operation.
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