Emerson Rosemount 370XA System Reference Manual page 136

370XA Gas Chromatograph
APRIL 2014
8.
9.
10.
11.
NOTICE
When opening the valves for the various gases to the GC, listen for leaks. If a leak is
heard, isolate all of the gases and check that the o-rings in the spring-loaded feed-
through are installed correctly.
12.
13.
14.
15.
CAUTION
The hazardous area flame-path seal is a combination of the number of threads and
the o-ring seal and does not rely on the dome being tightened excessively;
therefore, do not over tightened the dome because this could result in difficulty when
removing the dome at a later stage. Hand-tightening the dome to the end of the
thread is all that is required.
16.
17.
After the firmware starts running, the GC will check the serial number
of the new module to determine if it matches the serial number of the
module that was in place when the GC was shut down. If it does not,
the GC will start the new module software assistant. If the serial
numbers do match, the GC will warm up and stay in idle mode.
Insert the four module mounting screws and hand tighten.
To ensure the module is installed square, tighten the mounting
screws in a cross-pattern as shown below.
Place the insulation cap over the heater cap.
Open the actuation gas isolation valve.
Set the carrier gas supply pressure to 60 PSIG (6.2 BarG) and
open the isolation valve on the carrier gas supply to the GC.
Set the calibration gas pressure to 15 PSIG (1 BarG) and open
the isolation valve on the calibration gas supply to the GC.
Set the sample gas(es) pressure to 15 PSIG (1 BarG) and
open the isolation valve to the GC.
Screw the dome over the analytical module and hand tighten.
Tighten the dome locking screw.
Power up the GC.
System Reference Manual
7P00370-H01
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