3 Proof tests
3.1 Overview
The Rosemount 5300 Level Transmitter must be tested at regular intervals to reveal faults
which are undetected by automatic diagnostics. It is the user's responsibility to choose the
type of testing and the frequency of these tests.
Results from periodic proof tests shall be recorded and periodically reviewed. If an error is
found in the safety functionality, the transmitter shall be put out of operation and the
process shall be kept in a safe state by other measures.
Note
For a valid result, always perform the proof test on the product that will be stored in the
tank while the device is in operation.
The following proof-tests are suggested:
• (A) Comprehensive proof-test
• (B) Comprehensive, fully remote proof-test
• (C) Comprehensive proof-test using reference reflector (High Level Supervision)
• (D) Comprehensive fully remote proof-test using reference reflector (High Level
Supervision)
• (E) Proof-test using reference reflector (High Level Supervision)
• (F) Fully remote proof-test using reference reflector (High Level Supervision)
• (G) Partial proof-test
Table 3-1 can be used as a guidance for selecting the appropriate proof-test.
Table 3-1: Proof-Tests
Proof-
test #
Type Proof-test
coverage
(%) of DU
Remaining
DU failures
Remaining
DU failures,
with option
code BR5
Test coverage Can be
performed
remotely
Output
circuitry
Measurement
electronics
A Comprehensive 94% 6 FIT 6 FIT Y Y No
B Comprehensive 85% 14 FIT 16 FIT Y Y Yes
C Comprehensive 94% 6 FIT 6 FIT Y Y No
D Comprehensive 86% 13 FIT 15 FIT Y Y Yes
E Partial 82% 17 FIT 19 FIT N Y No
F Partial 74% 25 FIT 27 FIT N Y Yes
G Partial 55% 43 FIT 47 FIT Y N Yes
Safety Manual Proof tests
00809-1900-4530 September 2020
Rosemount 5300:SIS Level Transmitter 17
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