Gas Detectors Loop Checks Procedure

We discuss about Gas Detectors Loop Checks Procedure. This involves Distributed control systems (DCS) loop checks, Emergency Shutdown System (ESD) loop checks and Gas Detectors loop checks.

Gas Detectors Loop Checks Procedure

  1. Check and verify the DCS / ESD configuration for applicable points.

  2. Proceed the verification of gas detector by introducing the applicable sample gas for H2S and LEL.

  3. If no calibration gas available on the time of testing hart communicator or test magnet provided by vendor will be used to perform the linearity check and the exception log will be maintained.

  4. Check the beacon status at high alarm condition.

  5. Check the horn status at high alarm condition.

  6. In gas detector process, zero will be confirmed using span gas or zero gas or any other means before applying / tuning the actual zero.

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