Endress+Hauser Proline Promag 300 - Test Sequence E (PTC = 19 %)

Proof testing Proline Promag 300 HART
40 Endress+Hauser
NOTICE
At least 52 % of dangerous, undetected failures can be detected using the test sequences
described (PTC = 0.52). The influence of systematic errors on the safety function is not
fully covered by the test. Systematic errors can be caused, for example, by medium
properties, operating conditions or buildup.
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If one of the test criteria from the test sequences described above is not fulfilled, the device
may no longer be used as part of a protective system.
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Take measures to reduce systematic errors. For detailed information on the orientation,
medium properties and operating conditions, see the "Operating Instructions" →  10
7.4 Test sequence E (PTC = 19 %)
• Device restart
• Heartbeat Verification
• Inspection and on-site visual check
Detection of additional systematic errors with Heartbeat Verification: influence of the process
on the device (e.g. formation of buildup in the sensor).
Preparation
Byassing of safety function of process control system, to prevent accidental activation of the
safety function.
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Deactivate the locked SIL mode →  28.
7.4.1 Test sequence: Device restart
The device restart resets every parameter whose data are in the volatile memory (RAM) to the
factory setting (e.g. measured value data). The device configuration remains unchanged.
The device can be restarted using one of the following methods:
• Disconnecting and reconnecting the terminal voltage.
• In the Device reset parameter, select the Restart device option.
Setup → Advanced setup → Administration
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Restart the device.
NOTICE
Wrong option selected in the "Reset device" parameter.
If the "To factory defaults" or "To delivery settings" option is selected, the device configuration is
reset and the device must be reconfigured!
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In the Device reset parameter, select only the Restart device option.
Evaluation of results: Device restart
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Test restart of device.
 After a successful startup, the local display switches automatically from the startup
display to the operational display. If the device restarts and no diagnostic message is
displayed, this step has been completed successfully.
If nothing appears on the local display or a diagnostic message is displayed, refer to
the "Diagnostics and troubleshooting" section of the "Operating Instructions" →  10