Automated measurement -, - a cleaning and calibrating device for ph - electrodes or electrodes for the measurement of redox potentials

摘要

Automated measurement -, - a cleaning and calibrating device for ph - electrodes or electrodes for the measurement of redox potentials, in particular in the process technology, with a electrodes fitting (4), which the measuring electrode (2) in an operating position or in a maintenance position, the electrode (2) in the maintenance position in a scouring liquid chamber (28) is received, in which a cleaning - and calibrating process can be carried out, and with a pump device (12) for supplying cleaning liquid (16) and calibrating solutions (18, 20) for the scouring liquid chamber (28) via a the pump device (12) and the scouring liquid chamber (28) connected to the feed line (26), wherein a single pumping device (12) with a plurality of supply lines (48) on its suction side and a device (76) for selectively connecting a respective supply (48) with the pump device is provided, and wherein the via the respective supply lines (48) for pumping device (12) selectively conducted media such as cleaning liquid and / or calibrating solution by means of the common circuit lines (26) for the scouring liquid chamber (28), characterized in that the pump device (12) a first with the plurality of..