When make the
measurement should
immerse the " Sensing
Electrode " immersed
wholly into the measured
solution.
4-2 TDS measurement
Same procedures as above " 4-1 Conductivity
measurement " but should select the measuring unit to
" ppm " at first, the procedures are following :
Press " Unit Button " ( 3-4, Fig. 1 ) continuously at
least two seconds until the " Display " show the unit
" ppm " instead of " uS ", then release the button.
Now the meter is ready for TDS ( Total Dissolved Solids )
measurement.
Remark :
If the measurement value > 9990 ppm, then the last
digit will present in the low display as :
For example :
1235 12350 ppm
0 ppm
7
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