FCI FS10A Installation & Operation Manual
Also see for FS10A: Installation & operation guideInstallation & operation guide
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FS10 Series32 Fluid Components International LLC6 SAFETy INSTRUMENTED SySTEMS REQUIREMENTS (SIS)The safety-critical output of the FS10 is provided through the 4-20 mA signal representing flow and the SPDT relay or solid state output.Compliance through FMEDA (Failure Modes, Effects and Diagnostic Analysis)SIL (Safety Integrity Level): 2 – as a single deviceHFT (Hardware Fault Tolerance): 0Subsystem Type: BFS10 Safety IdentificationFirmware version 4.02 or greaterTo identify firmware version, use Fluid Components Intl PC Interface programInstallation in SIS applicationsInstallations are to be performed by qualified personnel. No special installation is required in addition to the standard installation practicesoutlined in this document. Environmental and operational limits are available on page 3, Technical Specifications.The supplied power should be designed so the terminal voltage does not drop below 21.5 Vdc. With the relay output option, current must belimited to 60% of the relay rating (600 mA) and provide transient voltage protection (refer to page 9 for inductive loads).Use the PC Interface tool to communicate with and verify configuration of the FS10. Use keypad lockout function (ref. page 18) to preventaccidental or deliberate change of configuration data during normal operation.NOTE: Transmitter output is not safety-rated during configuration changes. Alternative means should be used to ensure processsafety during transmitter configuration and maintenance activities.Alarm LevelsNamur: <3.6mA = Fault or >21mA = FaultProof TestThe suggested proof test described below will detect 95% of possible DU failures in the FS10 Flow Switch. The suggested proof test incombination with automatic diagnostics will detect 99% of possible DU failures in the FS10 Flow Swtich.The suggested proof test consists of setting the output to the min and max, and a calibration check.Suggested Proof TestStep Action1 Bypass the safety function and take appropriate action to avoid a false trip.2 Send a command through PC interface or function buttons to the FS10A to de-energize the relay or transistor or go to the highalarm current output. Verify that the relay or transistor changes state or that the analog current reaches that value.3 If the current output is used as the safety critical output, send a command through PC interface or function buttons to theFS10A to go to the low alarm current output and verify that the analog current reaches that value.4 Perform a two-point calibration of the transmitter over the full working range.5 Remove the bypass and otherwise restore normal operation.FMEDA report may be found at: www.fluidcomponents.com/safetyCalculation of average probability of failure on demand (PFDAVG)PFD AVG calculation may be found in the FMEDA report located at: www.fluidcomponents.com/safety. |
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