Emerson Rosemount CT5100, Reference Manual

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If the PT100 LED (C) illuminates red, the air pressurization system is unserviceable,
and the start-up procedure must be halted immediately. To halt the start-up
procedure, set the external main circuit breaker to
Off
. Lock off or tag off the main
circuit breaker, turn off the compressed air supply, and report the fault to the
maintenance organization.
13. Observe the P/SV LED (B) on the purge control panel.
When the pre-set internal overpressure has been reached, the P/SV LED (B)
illuminates orange. If the P/SV LED (B) does not illuminate blue, the pressurization
system is unserviceable, and the start-up procedure must be halted immediately.
To halt the start-up procedure, set the external main circuit breaker to
Off , lock off
or tag off the main circuit breaker, turn off the compressed air supply, and report
the fault to the maintenance organization.
WARNING
FLAMMABLE/EXPLOSIVE GASES
The purge/pressurization cycle expels any flammable or explosive gases from the
analyzer's electrical compartment. The analyzer must be purged for a minimum of 2
minutes 30 seconds at a minimum flow rate of 280 L/m at 1.5 ± 0.5 bar to prevent
hazards to personnel during the startup process.
Only after the purge/pressurization cycle has been completed can electrical power
be applied to the rest of the analyzer.
14. Wait until the purge cycle is performed.
Do not switch on the secondary circuit breaker until the purge cycle is complete.
Observe the K1 LED (A) on the purge control panel, which will illuminate green
when the purge cycle is complete.
15. When the purge/pressurization cycle is complete, set the secondary circuit breaker
to On , which applies electrical power to the rest of the analyzer.
The analyzer begins its automatic start-up. The control PC that forms part of the
analyzer is configured to automatically load the necessary gas sensor software and
configuration files. The start-up sequence commences automatically under
software control.
After a few seconds, the Gas Sensor main screen ( Figure 7-3 ) appears on the display
controller. If it does not, report the fault to the maintenance organization.
Reference Manual Start-up procedure
00809-0100-4512 October 2019
Reference Manual 79