8.2
Shutdown procedure
To shut down the analyzer:
DANGER
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 gas handling system may cause
death.
Always lock 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
the analyzer. Always lock-out the gas handling system to prevent its unauthorized
operation during maintenance, which may cause an escape of gas.
DANGER
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.
2. Purge any sample gas in the pipe/hose from the gas handling system to the analyzer
using factory air or nitrogen supply.
3. Allow the analyzer to run for five minutes with the purge gas connected, so that any
sample gas in the analyzer is vented to the exhaust. On the display controller, check
that the gas concentrations read
0 ppm
before stopping the purge flow.
WARNING
HIGH PRESSURE GAS AND AIR
This article is in accordance with IEC 60079-0: 2011 Clause 30.
The calibration gas supply and compressed air operate at a pressure that can cause
injury (e.g., damage to eyes and skin punctures from debris blown by the high
pressure has or compressed air).
Always lock off or tag off the calibration gas supply and compressed air supply when
shutting down the analyzer.
Shutdown procedure
Reference Manual
September 2019
00809-0100-5800
164
Emerson.com/Rosemount
Summary of Contents for Rosemount CT5800
Page 20: ...Contents Reference Manual September 2019 00809 0100 5800 xx Emerson com Rosemount ...
Page 34: ...Plan Reference Manual September 2019 00809 0100 5800 34 Emerson com Rosemount ...
Page 60: ...Startup procedure Reference Manual September 2019 00809 0100 5800 60 Emerson com Rosemount ...
Page 90: ...Gas calibration Reference Manual September 2019 00809 0100 5800 90 Emerson com Rosemount ...
Page 168: ...Shutdown procedure Reference Manual September 2019 00809 0100 5800 168 Emerson com Rosemount ...
Page 178: ...Theory of operation Reference Manual September 2019 00809 0100 5800 178 Emerson com Rosemount ...
Page 180: ...Spare parts list Reference Manual September 2019 00809 0100 5800 180 Emerson com Rosemount ...