cell constant

cell constant

[′sel ‚kän·stənt]
(physical chemistry)
The ratio of distance between conductance-titration electrodes to the area of the electrodes, measured from the determined resistance of a solution of known specific conductance.
References in periodicals archive ?
Limited Tenders are invited for Procurement Of Conductivity Cell With Cell Constant K: 1.
The NIST traceable, factory calibrated probes, each with an invariant cell constant that is accurate over its entire 8-plus decade range makes the 2100 unique in the field of conductivity meters, allowing it to accurately follow processes through many decades of conductivity.
The calibration procedure determines the cell constant, which is the effective ratio of path length to electrode area for a particular probe in the standard solution.
Features include automatic or manual temperature compensation, automatic conductivity cell constant recognition with auto ranging, and up to five-point calibration.
ABB says, the AC200's high accuracy of cell constant eliminates the need for on-site calibration or entering of cell correction values during installation.
By employing an appropriate cell constant, c, it is possible to determine the specific electrical conductivity from the resistance and temperature measurements (American Public Health Association 1985) as:
The CLS 15 sensors are calibrated with ASTM-produced standards and delivered with NIST certificate and precision cell constant.
The enzyme maintains different ion concentrations on either side of a membrane, a crucial factor in keeping the volume of a cell constant and propagating nerve signals.
The software packages available with the DSC will automatically calculate the cell constant as part of the calibration routine, and then use this value during subsequent experimentation.
Standard solutions are used to determine the effective cell constant, which may deviate from the merely geometrical cell constant because of surface roughness and electrical fields.
it is necessary to keep the temperature of the cell constant within 0.