TDS From Conductivity Calculator
Apply explicit caller local reference-temperature conductivity/TDS linear calibration including intercept; not direct gravimetric measurement or universal 0.5/0.7 factor.
Description
Conductivity and total dissolved solids require a local calibration on a consistent temperature basis.
Conductivity and total dissolved solids require a local calibration on a consistent temperature basis. A universal conversion factor cannot describe every ionic mixture.1
Enter nonnegative conductivity list, positive calibration slope and finite signed offset. Return estimates; any negative modeled concentration fails.
When to use TDS From Conductivity Calculator
Use TDS From Conductivity Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. An empty observation list is permitted. No gravimetric measurement, temperature normalization or universal factor is supplied.
Prepare the observed lake or sample measurements and explicit calibration, reference values or thresholds requested. Keep depth coverage, units, dates and sampling conditions consistent.
How to use TDS From Conductivity Calculator and understand its results
- Prepare the observed lake or sample measurements and explicit calibration, reference values or thresholds requested. Keep depth coverage, units, dates and sampling conditions consistent.
- Enter referenceConductivityMicroS, callerTdsMgLiterPerMicroS, callerCalibrationOffsetMgLiter using the field table and calculation rules, then run the tool.
- Read calibratedTdsMgLiter. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| referenceConductivityMicroS | Reference conductivity micro s | list of number | Required |
| callerTdsMgLiterPerMicroS | Caller tds mg liter per micro s | number | Required |
| callerCalibrationOffsetMgLiter | Caller calibration offset mg liter | number | Required |
Enter nonnegative conductivity list, positive calibration slope and finite signed offset. Return estimates; any negative modeled concentration fails.
estimatedTDS=referenceEC×callerSlope+callerOffset Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| calibratedTdsMgLiter | Calibrated tds mg liter | list of number |
{
"input": {
"referenceConductivityMicroS": [
100,
200
],
"callerTdsMgLiterPerMicroS": 0.5,
"callerCalibrationOffsetMgLiter": 10
},
"output": {
"calibratedTdsMgLiter": [
60,
110
]
}
}Limitations and assumptions
An empty observation list is permitted. No gravimetric measurement, temperature normalization or universal factor is supplied.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Conductivity Salinity Freshwater Approximation Converter: Freshwater conductivity-to-salinity conversion needs local calibration and a stated temperature normalization. Ionic composition affects the relation. For a complementary task, use Morphoedaphic Index MEI Calculator: The morphoedaphic index has alternative measurement conventions. This tool explicitly uses dissolved solids divided by mean depth.
References
-
TDS From Conductivity Calculator — tool.io
Similar or alternative tools
- Conductivity Salinity Freshwater Approximation Converter
Freshwater conductivity-to-salinity conversion needs local calibration and a stated temperature normalization. Ionic composition affects the relation.
- Morphoedaphic Index MEI Calculator
The morphoedaphic index has alternative measurement conventions. This tool explicitly uses dissolved solids divided by mean depth.