ACS-Z
page 4 ACS-Z K03/1022
4. Regulation Use
Any use of the device, which exceeds the manufacturer’s specification, may
invalidate its warranty. Therefore, any resulting damage is not the responsibility of
the manufacturer. The user assumes all risk for such usage.
5. General
These operating instructions are valid for electrolytic conductivity cells as per data
sheets ACS-Z.
Electrolytic conductivity cells are used in conjunction with suitable transmitters for
industrial chemical analysis, to determine the electrolytic conductivity of liquids, or
the resistance in high-purity water.
6. Measurement principle
Two conductive electrodes of a defined surface are immersed in the medium at a
certain distance to each other. They are supplied with an a.c. voltage of a specific
frequency (depending on the measurement range) from a separate transmitter.
Because of the conductive components in the medium (ions, salts), an alternating
current is produced between the electrodes, which the transmitter uses to
determine the conductivity, display it and convert it to a standardized signal.
7. Laboratory or industrial cells
Conductivity cells consist of a flow-through, immersion or screw-in body made from
plastic or stainless steel and the electrodes embedded in it. Depending on the type,
application and measurement range, the two electrodes are made from stainless
steel, titanium or special graphite. The conductivity cells are supplied ex-factory
with a fixed cell constant K [1/cm]. Typical cell constants are, for example. K = 0.01;
0.1; 1.0; 3.0 or 10.0. Intermediate values are possible for customer-specific
versions.
The subsequent transmitter must be set to the cell constant of the cell. In addition,
temperature probes can be incorporated in the cell for specific applications.
