Shutdown Procedure - Emerson Rosemount CT5100 Reference Manual

Shutdown procedure

May 2020
9.2 Shutdown procedure
WARNING
EXPLOSION HAZARD
Unauthorized operation of the gas handling system when maintenance is being
performed on the analyzer or on its associated pipes/hoses may result in gas being
released, causing fire or explosion. Failure to lock out the gas handling system may cause
death.
Always lock out the gas handling system when shutting down the analyzer.
Procedure
1. Shut down the gas handling system that conditions the sample gas and feeds it to
2. Purge any sample gas in the pipe/hose from the gas handling system to the analyzer
3. Turn off the gas used to purge the analyzer.
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the analyzer. Always lock-out the gas handling system to prevent its unauthorized
operation during maintenance, which may cause an escape of gas.
WARNING
EXPLOSION HAZARD
Failure to vent sample gas may cause death.
Vent the sample gas in the system to prevent fire or explosion during
maintenance and to prevent damage to the analyzer during shutdown.
Purge the sample gas in the pipes leading to the analyzer to prevent hazards to
personnel during maintenance.
Purge the sample gas in accordance with safe working procedures for the site.
Allow the analyzer and system for returning the sample gas to run for five
minutes to allow any sample gas in the analyzer to be returned to the exhaust.
using factory air or nitrogen supply.
WARNING
HIGH PRESSURE GAS AND AIR
The calibration gas supply and compressed air supply operate at a pressure that can
cause injury (e.g. damage to eyes and skin punctures from debris blown by the high
pressure gas or compressed air).
Reference Manual
00809-0100-4511
Emerson.com/Rosemount