59
Safety Manual
00809-0200-5100, Rev GB
Proof Test
February 2017
Proof Test
The following parameters will be presented in the report and the SIL High Alarm Test Results
window:
Table 5-1. Safety parameters
Safety Parameter Description
Safety Status “Alarm” during the SIL High Alarm test. Once the test is finished
successfully, Safety Status will return to “OK”. In the Proof Test Report
Safety Status will be set to “OK” as well.
Safety Mode Should be “Approved” prior to the test is started as well as when the SIL
High Alarm test is performed.
SIL Surface Distance Normally this is the distance from the SIL Reference Point to the product
surface. During the SIL High Alarm Test the 5900 level gauge measures
the distance to the Reference Reflector.
SIL Test Surface Distance Measured distance to the Reference Reflector which simulates the
product surface during the SIL High Alarm Test.
SIL Valid Surface Distance “Yes” if the gauge finds a valid echo from the product surface or the
Reference Reflector.
SIL Surface Amplitude This is the amplitude of the radar signal reflected by the product surface.
During the SIL High Alarm Test the amplitude refers to the signal
reflected by the Reference Reflector which is presented as the SIL Test
Surface Amplitude in the test report.
SIL Test Surface Amplitude Amplitude of the radar signal reflected by the Reference Reflector during
the SIL High Alarm Test.
SIL Measurement Status Equal to 1 during SIL High Alarm Test indicating that measurement is
performed within the High Alarm region. Equal to 0 in normal conditions
when the product surface is located below the SIL High Alarm.
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