Endress+Hauser Proline Promag 300 - Alarm and Warning Messages; Proof Testing

Proof testing Proline Promag 300 HART
30 Endress+Hauser
In some other cases (e.g. short circuit of cabling), output currents of ≥ 21 mA occur
irrespective of the configured failure current.
For alarm monitoring, the downstream automation system must be able to recognize both
maximum alarms (≥ 21 mA) and minimum alarms (≤ 3.6 mA).
6.5 Alarm and warning messages
Additional information is provided by the alarm and warning messages output in the form of
diagnostic events and associated event texts.
NOTICE
A diagnostic message is displayed even though the diagnostic event is no longer active in
the unlocked SIL mode.
When SIL mode is activated, additional diagnostics are activated. If a diagnostic event is
pending and the locked SIL mode is deactivated, the diagnostic message remains as long as
the error is still present.
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In this case, the device must be disconnected briefly from the power supply .
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When the device is then restarted, a self-check is carried out, and the diagnostics event is
reset where applicable.
This behavior occurs in the event of the following diagnostic message:
803 Current loop diagnostic message
After a period of 20 to 30 s, the diagnostic message changes from 803 Current loop
diagnostic message to F375 I/O- 1 to n communication failed diagnostic message. If
a check run in the device's event logbook confirms the previous 803 Current loop
diagnostic message diagnostic message, the installation must be checked for a cable
break.
7 Proof testing
The functional integrity of the device in the SIL mode must be verified during
commissioning, when changes are made to safety-related parameters, and also at
appropriate time intervals. The time intervals must be specified by the operator.
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CAUTION
The safety function is not guaranteed during a proof test.
Suitable measures must be taken to guarantee process safety during the test.
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The safety-related output signal 4 to 20 mA must not be used for the protective system
during the test.
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Any test that is performed must be documented; the template in the appendix can be used
for this purpose →  47.
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The operator specifies the testing interval and this must be taken into account when
determining the probability of failure PFD
avg
of the sensor system.
If no operator-specific proof testing requirements have been defined, the following is a
possible alternative for testing the transmitter depending on the measured variable used for