Liquistation CSF48 Inputs: Conductivity
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11.1.5 Installation factor (only inductive sensors)
In confined installation conditions, the wall affects conductivity measurement in the liquid.
The installation factor compensates for this effect. The transmitter corrects the cell constant by
multiplying by the installation factor.
The size of the installation factor depends on the diameter and the conductivity of the pipe
nozzle, as well as the distance between the sensor and the wall.
If there is a sufficient distance between the wall and the sensor (a > 15 mm (0.59"), from
DN 80), the installation factor f does not have to be taken into consideration (f = 1.00).
If distances from the wall are smaller, the installation factor is bigger for electrically insulating
pipes (f >1), and smaller for electrically conductive pipes (f < 1).
It can be measured using calibration solutions, or a close approximation determined from the
following diagram.
a0005441
Fig. 18: Relation between the installation factor f and the wall distance
1 Electrically conductive pipe wall
2 Electrically insulating pipe wall
Path: Menu/Setup/Inputs/Conductivity
Function Options Info
Inst. factor Read only
(Only available if a sensor is
connected)
Displays the current value. Only changes with a
calibration.
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