Liquid Analysis
Conductivity meters are devices for measuring the electrical conductivity in a solution. Distilled water is a poor electrical conductor and the substances or salts dissolved in the water determine how conductive the solution will be, as the number of dissolved ions increases, so does the solution’s ability to carry an electrical charge. This electrical charge is what allows a conductivity meter to measure the conductance of a solution.How do they work?A conductivity meter consists of a probe that measures conductivity. A small electrical current flows between two electrodes set a certain distance apart, usually around 1 cm. If there is a high concentration of ions in the solution, the conductance is high, resulting in a fast current. The electrical current is slower and gives a smaller reading when a lower concentration of ions is present.They are commonly used in hydroponics, aquaculture and freshwater systems to monitor the number of nutrients, salts or impurities in the water. Conductivity meters must be calibrated to provide accurate results.Advantages• Available as a controller or an analyser to be implemented in process situations• Able to make a sampling measurement in less than one second Disadvantages• Cannot distinguish between different types of ions• Conductivity meters are temperature dependent, conductance increases approximately 2% per °C• Does not measure the number of ions in a solution directlyUses• Agriculture to measure the salinity levels of surface water and of soil samples• Wastewater treatment facility to measure the quality of water• Water conditioning (softener, demineralisation, aquariums, pollution control)
Showing 25–48 of 56 results
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RS PRO Hydrometer
VND1,809,434.88 -
Hanna Instruments HI 98304 Conductivity Meter
VND1,945,641.28 -
Hanna Instruments HI 70010P pH Buffer Solution, 20ml Sachet, 10.01
VND1,992,258.40Lot (1 Lot of 25) -
Hanna Instruments HI-7010/1L Buffer Solution, 1L Bottle, 10.01pH
VND2,092,015.20 -
Hanna Instruments HI-7004/1L Buffer Solution, 1L Bottle, 4.01pH
VND2,092,015.20 -
Hanna Instruments HI-7007/1L pH Buffer Solution, 1L Bottle, 7.01
VND2,092,015.20 -
Hanna Instruments HI 98304 Conductivity Meter
VND0.00 -
Chauvin Arnoux CA 10001 pH Meter, 14pH max, +60 °C max
VND2,955,103.36 -
Hanna Instruments CHECKER1 pH Meter, +14pH max
VND3,223,679.36 -
Hanna Instruments HI 98107 pH Meter, +14pH max
VND3,463,095.68 -
Kern Sugar Refractometer, 80% max, 0% min, Analogue
VND3,656,662.24 -
Hanna Instruments HI-98308 Conductivity Meter, 0 → 99 μS/cm
VND3,684,862.72 -
Testo 206 pH1 pH Meter, +14pH max, +60 °C max
VND4,774,322.08 -
Kern Sugar Refractometer, 80% max, 0% min, Analogue
VND0.00 -
Hanna Instruments PEI Conductivity Sensor, Gel + BNC Interface
VND5,301,690.24 -
Hanna Instruments PEI Conductivity Sensor, Gel + BNC Interface
VND0.00 -
Facom Refractometer
VND6,570,520.00 -
Hanna Instruments HI98312 Water Conductivity Meter, 0 → 20 mS/cm
VND7,119,182.40 -
RS PRO Mix Cutting Fluids Refractometer, 18% max, 0% min
VND7,178,269.12
