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TDS/EC Meter Conversions
for 4 common meter types

Multiply the reading from the meter type in the left column by the Conversion Value
to find the equivalent reading for the meter type in the right column.
Type of Meter the Reading is From X Conversion Value = Equivalent Meter Reading
 
TDS/ppm@.7
X 1.4286
= EC/uS Meter
TDS/ppm@.5 2
EC/mS 1000
 
TDS/ppm@.7 X 0.0014286 = EC/mS
TDS/ppm@.5 0.002
EC/us 0.001
 
TDS/ppm@.5 X 1.4 = TDS/ppm@.7
EC/uS 0.7
EC/mS 700
 
TDS/ppm@.7 X 0.7143 = TDS/ppm@.5
EC/uS 0.5
EC/mS 500

 

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