Emerson Rosemount 8800D Series Safety Manual

3.4 Proof test interval
The time intervals for proof testing are defined by the SIL verification calculation (subject
to the PFDAVG). The proof tests must be performed more frequently than or as frequently
as specified in the SIL verification calculation in order to maintain the required safety
integrity of the overall SIF.
Results from periodic proof tests shall be recorded and periodically reviewed. For the
specification of customer requirements required to fulfil this SIS requirement, please see
IEC-61511.
3.5 Tools required
• HART host or Field Communicator
• mA meter
3.6 Proof test options
The flowmeter has two proof tests you can use to detect failures. Proof tests can be
performed using ProLink III software or the Field Communicator.
Proof test optionsTable 3-1:
Device Proof test Description
DU failure
detection
8800D Partial • Low/High alarm checks
• Visual inspection of flow meter
• Single point reasonability check or internal
flow simulation at 2 points
• Checking for alarms
• Checking configuration
High flow trip:
85%
Low flow trip:
77%
Comprehen-
sive
• Low/High alarm checks
• Visual inspection of flow meter
• 3 to 5-point calibration check using reference
standard
• Checking for alarms
• Checking configuration
High flow trip:
94%
Low flow trip:
92%
3.7 Partial proof test
The partial proof test is recommended for all Rosemount 8800D Series SIL 2/3 Capable
Vortex Flowmeters.
Proof tests
16 Rosemount
™
8800D Safety Manual

Emerson Rosemount 8800D Series Specifications

General

Brand	Emerson
Model	Rosemount 8800D Series
Category	Measuring Instruments
Language	English