Masoneilan Products SVI II ESD - GE Energy

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GE Energy Installation SVI II ESD Quick Start All issues related to installation are outlined below. SVI II ESD Installation Configurations Refer to “SVI II ESD Configurations” on page 33. Physical Location and Placement Guidelines Refer to “Physical Location and Placement Guidelines” on page 15. Pneumatic Connections Refer to “Pneumatic Connections” on page 27. Electrical Connections Refer to “Electrical Connection Guidelines” on page 32 Operation, Setup, Commissioning Refer to “Setup, Calibration and PST” on page 45. Maintenance Refer to “SVI II ESD Maintenance” on page 41. Diagnostics PST The SVI II ESD provides several types of diagnostic information: Continuous device diagnostics Self diagnostics of the pneumatics and the safety function that run every hour and require no user configuration Partial Stroke Testing (PST) diagnostics You can configure and run PST at runtime. For more information on PST refer to “Partial Stroke Testing” on page 57. 10
Safety Information Proof Test You can also manually run a proof test to detect failures within an SVI II ESD and ESD valve that are not detected by any automatic diagnostics of the system. Of main concern are undetected failures that prevent the safety instrumented function from performing its intended function. The frequency of proof testing, or the proof test interval, is to be determined in reliability calculations for the safety instrumented functions for which an SVI II ESD is applied. The proof tests must be performed more frequently or as frequently as specified in the calculation in order to maintain the required safety integrity of the safety instrumented function. The following proof test is recommended. Report any failures that are detected and that compromise functional safety to the factory. Table 1 Proof Test Steps PST Step Action 1 Read the SVI II ESD data record using a HART handheld device or ValVue ESD software. Resolve any active faults before proceeding. 2 Bypass the valve, or isolate or take other appropriate action to avoid a false trip, following company Management of Change (MOC) procedures 3 Inspect the SVI II ESD for dirty or clogged ports and other physical damage 4 De-energize the SVI II ESD and observe that the actuator and valve move. Energize the SVI II ESD after the valve has moved its full stroke length. 5 Inspect the SVI II ESD for dirt, corrosion or excessive moisture. Clean if necessary and take corrective action to properly clean the air supply. This is done to avoid incipient failures due to dirty air. 6 Record any failures in your company’s SIF inspection database. Restore the loop to full operation. 7 Remove the bypass or otherwise restore normal operation This test detects approximately 99% of possible DU failures in the SVI II ESD (Proof Test Coverage). The person (s) performing the proof test of an SVI II ESD must be trained in SIS operations, including bypass procedures, maintenance and company Management of Change procedures. No special tools are required. 11
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Masoneilan Products SVI II ESD - GE Energy

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