An automatable measuring, cleaning and calibrating device for pH-electrodes or
electrodes for measuring redox potentials, specifically in process engineering,
having an electrode armature which keeps the measuring electrode in an operating
position or in a maintenance position, whereby the electrode is retained in the
maintenance position in a rinsing chamber in which a cleaning and calibration procedure
can be performed. The device has a pump device to supply cleaning fluid and calibration
solutions to the rinsing chamber over a delivery line connecting the pump device
and the rinsing chamber. In order to configure the device more compactly, the pump
device includes several feeds on its intake side, and a device is furnished to
selectively activate a particular feed, and the media (cleaning fluid, calibration
solution, etc.) brought selectively over the particular feeds to the pump device
reach the rinsing chamber over the common delivery line.