Troubleshooting And Repair; Routine Maintenance - Emerson Rosemount 700XA Reference Manual

Operation and maintenance
June 2022
8. Run a single stream analysis on the stream associated with the HCG until the
9. Run a forced calibration on the stream associated with the HCG.
10. Run a normal calibration on the stream associated with the HCG.
5.3

Troubleshooting and repair

The most efficient method for maintaining and repairing the Rosemount 700XA is a
component-replacement concept that allows you to return the system to operation as
quickly as possible.
Use troubleshooting test procedures to identify sources of trouble, such as printed-circuit
assemblies, valves, etc., and replace them with parts in known good working order.
5.4

Routine maintenance

The Rosemount 700XA will perform accurately for long periods with very little attention
(except for maintaining the carrier gas cylinders).
It helps to keep a bi-monthly record of certain parameters to assure that the gas
chromatograph (GC) is operating to specifications. Fill out the maintenance checklist bi-
monthly, date it, and keep it on file for access by maintenance technicians as necessary.
This gives a historical record of the operation of the Rosemount 700XA, enables a
maintenance technician to schedule replacement of gas cylinders at a convenient time,
and allows quick troubleshooting and repair when necessary.
Also, create a diagnostic file, which contains calibration and analysis chromatograms,
alarm and event logs, analysis reports, and the complete configuration file, and file it with
the checklist, furnishing a positive dated record of the Rosemount 700XA. You can
compare these chromatograms and reports to the chromatograms and reports run during
the troubleshooting process.
Before contacting Customer Care, connect to your GC and save the diagnostics data file.
From Rosemount MON2020, go to Tools → Save Diagnostic Data to save the diagnostic
data file.
Rosemount MON2020 prompts you to send an email to Customer Care (at
gc.csc@emerson.com) with the diagnostic data file.
5.4.1 Maintenance checklist
Print the sample maintenance checklist in
If you have a problem, please complete the checklist first and have the results available, as
well as the sales order number, when calling your Emerson Customer Care representative
for technical assistance. The sales order number is on the nameplate located on the front
of the Rosemount 700XA. Emerson files the chromatograms and reports archived when
your gas chromatograph (GC) left the factory by this number.
102
readings stabilize.
The GC is ready to analyze the sample or validation stream using the 2 Pt Exp with
the response factor that was calculated during the LCG and HCG runs.
Figure 5-1 for your records.
Reference Manual
2-3-9000-744
Emerson.com/Rosemount