32
14.1 Maintenance information for operation without overflow
prevention
[MEdI] = [Auto] or = [OFF] (overflow prevention OP deactivated)
The unit must be reinitialised in the following cases (switch the operating voltage
briefly off and on again):
• after all maintenance operations.
• after cleaning operations (e.g. water jet cleaning of the sensor probe).
• if the sensor was removed from the tank and then installed again during
operation.
• if the active zone of the sensor was touched with the hand or grounded objects
(e.g. a screwdriver, a cleaning lance).
• if the connection between the sensor and the tank wall / counter-electrode was
changed.
• after a change of the medium with considerably differing dielectric constants.
For manual selection of media, first the [MEdI] setting needs to be adjusted.