VEGA POINTRAC 31 8_16 mA_HART - four-wire With SIL qualification - Manual (Page 23)

23
6 Functional safety (SIL)
POINTRAC 31 • 8/16 mA/HART - four-wire
43388-EN-131119
All parameters changed by the operator are marked automatically so
that they can verified in the next step.
For the verification the PIN must be entered first and a comparison of
two character strings must be carried out. The user must confirm that
both character strings are identical, this is used to check the charac-
ter representation and the communication channels. The verification
texts are provided in German and with all other menu languages in
English.
In a second step, all modified, safety-relevant parameters are listed,
which must all be confirmed. After this process is finished, the instru-
ment will be locked automatically and the safety function is guaran-
teed again.
Warning:
If the described process was not carried out completely or correctly
(e.g. interruption or voltage loss), the instrument remains in the
released and hence unsafe status.
Warning:
In case of a reset to basic settings, all safety-relevant parameters will
also be reset to default. Therefore all safety-relevant parameters must
be checked or readjusted.
Change parameter
Verify parameters/Lock
adjustment
Incomplete process
Instrument reset