Emerson Rosemount CT5100 Ex, Quick Start Manual

Page: 49 / 86

9. Visually check that the vent cap is fitted to the purge vent ( Figure 1-4 ). UNDER NO
CIRCUMSTANCES must the analyzer be started with the protector cap fitted as this
will prevent the analyzer from venting during the purge process.
WARNING
FLAMMABLE/EXPLOSIVE GASES
The purge/pressurization cycle expels any flammable or explosive gases from the
electrical compartment of the . Wait until the purge/pressurization cycle is
complete before applying electrical power to the rest of the analyzer.
10. Turn on the compressed air supply to the Rosemount CT5100(Ex).
11. Set the main circuit breaker to
On . The air pressurization will begin its automatic
start-up and begin to purge the air inside the Rosemount CT5100(Ex).
Figure 4-3: Purge Control Panel
A. K1 LED
B. P/SV LED
C. PT100 LED
12. Observe the PT100 LED on the purge control panel ( Figure 4-3 ).
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
Quick Start Guide Start-up procedure
D-7010-0055 August 2018
Quick Start Guide 49