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104595 Datasheet(PDF) 40 Page - PHOENIX CONTACT |
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104595 Datasheet(HTML) 40 Page - PHOENIX CONTACT |
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40 / 41 page  Appendix - Safety-related applications (SIL 2) en Version 04 PHOENIX CONTACT A-6 A1.6 Recurring checks (SIL 2) The function of the entire safety loop must be checked reg- ularly according to EN 61508 and EN 61511. The intervals for checking are specified by the intervals of each individual device within the safety loop. It is the operator's responsibility to select the type of checks and the checking intervals in the specified time period. The measuring transducers must be checked at least every 7 years (maximum proof test interval). Checking must be carried out in such a way that the correct function of the safety equipment in conjunction with all com- ponents can be verified. Possible procedure for recurring checks for discover- ing dangerous and undetected device failures. A calibrated sensor simulator (RTD/TC) and a calibrated digital multimeter are necessary for checking the measuring transducer. • Connect the sensor simulator to the input of the mea- suring transducer using the appropriate connection method. • Connect the digital multimeter to the output in current measuring mode (20 mA range). The measuring range limits and intermediate values are specified with the sensor simulator. The corresponding output values of the measuring trans- ducer must be checked on the digital multimeter. Line faults (break and short circuit) are to be simulated on the input terminals; the configured residual currents are to be determined on the output. If the function test result is negative, the measuring trans- ducer must be taken out of operation and the process put into a safe state by other measures. A1.7 Repair The devices have a long service life, are protected against malfunctions, and are maintenance-free. However, if a de- vice should fail, send it back to Phoenix Contact immedi- ately. The type of malfunction and possible cause must also be stated. Please use the original packaging or other suitable safe packaging when sending devices back for repairs or recali- bration. Phoenix Contact GmbH & Co KG Abteilung Service und Reparatur Flachsmarktstr. 8 D-32825 Blomberg GERMANY A1.8 Standards (SIL 2) The measuring transducers are developed and tested ac- cording to the following standards: EN 61508: 2001 Functional safety of electrical/electronic/ programmable electronic safety-related systems EN 61326-1: 2006 Electrical equipment for measurement, control and laboratory use – EMC re- quirements IEC 61326-3-2: 2006 Electrical equipment for measurement, control and laboratory use – EMC re- quirements – Part 3-2: Immunity require- ments for safety-related systems and for equipment intended to perform safety- related functions (functional safety) – In- dustrial applications with specified elec- tromagnetic environment |
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