Endress+Hauser PROMAG 33, Operating Manual

Page: 83 / 126

Function group
SENSOR DATA
POLARITY ECC
Display of the actual current polarity for the Electrode Cleaning Circuitry (ECC).
Depending on the material of the electrode, electrode cleaning is carried out
with a positive or negative current. An incorrect current at the electrode can
damage the material. Using the material data for the electrode stored in the
DAT, the Promag automatically selects the appropriate polarity.
Note!
•
This function is not available with the FL version.
•
The ECC function is described in detail on page 75.
Caution!
If, for any reason, it is necessary to change the polarity (e.g. after a loss of the
DAT), then it is possible to do so with this function. This function is, however,
still protected by a special service code and cannot be changed with the
personal code. Please contact your E+H Service organisation for more
information.
6
POSITIVE with electrodes in 1.4435, Hastelloy C or platinum
NEGATIVE with electrodes in tantalum
Note!
Caution!
Promag 33 6 Description of Functions
Hauser 83