Perform Proof Test For Sis Applications - Emerson 5301HxxxxxxxxxxxxxxZZ Series Reference Manual

Reference Manual
00809-0100-4530
8.7

Perform proof test for SIS applications

8.7.1 Overview
The following proof tests are recommended. If an error is found in the safety function, the
measuring system must be switched out of service and the process held in a safe state by
means of other measures.
The following proof-tests are suggested:
• (A)
• (B)
• (C)
• (D)
Supervision)
• (E)
Level Supervision)
• (F)
• (G)
Supervision)
Table 8-4
Table 8-4: Suggested Proof-tests
Proof-
test #
A
B
C
D
E
F
G
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.
Note
Before every test, make sure you are connected to the correct transmitter by verifying
QT/QS in the model code on the label and your software version. Also verify that the serial
number on the label matches the one in your configuration tool. Make sure to enable write
protection as soon as you are finished.
Reference Manual
Suggested comprehensive proof-test
Suggested comprehensive, fully remote proof-test
Suggested partial proof-test
Suggested comprehensive proof-test using reference reflector (High Level
Suggested comprehensive, fully remote proof-test using reference reflector (High
Suggested proof-test using reference reflector (High Level Supervision)
Suggested fully remote proof-test using reference reflector (High Level
can be used as a guidance for selecting the appropriate proof-test.
Type Proof-test coverage
(%) of DU
Comprehensive 94%
Comprehensive 85%
Partial 55%
Comprehensive 94%
Comprehensive 86%
Comprehensive 82%
Comprehensive 74%
Safety Instrumented Systems (4-20 mA only)
Remaining dangerous,
undetected failures
6 FIT
14 FIT
43 FIT
6 FIT
13 FIT
17 FIT
25 FIT
April 2019
Can be performed
remotely
No
Yes
Yes
No
Yes
No
Yes
251