8. Run a single stream analysis on the stream associated with the HCG until the
readings stabilize.
9. Run a forced calibration on the stream associated with the HCG.
10. Run a normal calibration on the stream associated with the HCG.
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.
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
) with the diagnostic data file.
5.4.1
Maintenance checklist
Print the sample maintenance checklist in
for your records.
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.
Operation and maintenance
Reference Manual
June 2022
2-3-9000-744
102
Emerson.com/Rosemount
Summary of Contents for Rosemount 700XA
Page 1: ...Reference Manual 2 3 9000 744 Rev L June 2022 Rosemount 700XA Gas Chromatograph ...
Page 6: ...TxD TD or Sout Transmit data or signal out 6 ...
Page 30: ...Overview Reference Manual June 2022 2 3 9000 744 30 Emerson com Rosemount ...
Page 100: ...Installation and start up Reference Manual June 2022 2 3 9000 744 100 Emerson com Rosemount ...
Page 182: ...Operation and maintenance Reference Manual June 2022 2 3 9000 744 182 Emerson com Rosemount ...
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