2 Installation and commissioning
2.1 Safety Instrumented System (SIS) certification
For safety instrumented systems usage, the 4-20 mA analog output is used as the primary
safety variable. It is configured to activate the alarm function if an error occurs. If a
measured value goes beyond the measurement range, the transmitter enters saturation
mode (limit alarm is disabled) or alarm mode, depending on the current configuration.
The minimum time for the alarm condition is 200 ms.
The measurement signal used by the logic solver must be the analog 4-20 mA signal
proportional to the level generated. The HART
®
protocol can only be used for setup,
calibration, and diagnostic purposes, not for safety critical operation.
The Rosemount
™
5300 Level Transmitter is IEC 61508 certified accordingly:
• Low and high demand: Type B element
• SIL 2 for random integrity @ HFT=0
• SIL 3 for random integrity @ HFT=1
• SIL 3 for systematic capability
2.2 Safety-certified identification
All Rosemount 5300 Level Transmitter must be identified as safety-certified before
installing into SIS systems. Table 2-1 lists the versions of the Rosemount 5300 Level
Transmitter that have been considered for the hardware assessment, to which this section
applies.
• Models with the QS option code are supplied with a manufacturer’s prior use certificate
of FMEDA data.
• Models with the QT option code are IEC 61508 certified by an accredited 3
rd
party
agency for use in safety instrumented systems up to SIL 3. (For single use (1oo1)
capable up to SIL 2 and for redundant use (1oo2 or 2oo3) capable up to SIL 3.)
Table 2-1: Rosemount 5300 Series Safety-Certified Option Model Codes
Rosemount 5300 4-20 mA HART Guided Wave Radar Level and Interface Transmitter
Hardware Model 5301HxxxxxxxxxxxxxxZZ
Model 5302HxxxxxxxxxxxxxxZZ
Model 5303HxxxxxxxxxxxxxxZZ
Note
Transmitters will be marked with “QS” or “QT”
at the end of the model number in place of ZZ
above.
Software/Firmware 2.A1 or higher
Safety Manual Installation and commissioning
00809-1900-4530 September 2020
Rosemount 5300:SIS Level Transmitter 9
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