Troubleshooting And Diagnostics; Troubleshooting, Repairs, And Failure Diagnostics - Emerson Rosemount CT5800 Manual

Reference Manual
00809-0100-5800
7

Troubleshooting and diagnostics

7.1 Troubleshooting, repairs, and failure
diagnostics
To diagnose failures in the analyzer, you must interpret system fault messages shown on
the LCD display, visually examine the data, perform failure diagnostic tests, and download
performance data and send that data to Emerson for analysis.
In the failure diagnosis procedures, all controls and indicators are on the analyzer unless
otherwise indicated.
Observe and obey all safety precautions when performing preventative maintenance on
the analyzer.
Important
The troubleshooting and failure diagnosis procedures described in this chapter assume
that any host equipment provided by you is fully functional. Always make sure that the
host equipment is fully serviceable before performing failure diagnosis on the analyzer.
Failure diagnosis, repair, and maintenance must only be performed by:
• Maintenance engineers who have the necessary skills, training, and hazardous area Ex
training where applicable and who have been authorized to perform maintenance on
the analyzer.
• Emerson customer care engineers.
In all the cases described in this chapter, maintenance personnel must perform the repairs
by directly replacing the faulty item with a known serviceable spare part supplied by
Emerson. All other items must be repaired or replaced by the manufacturer.
NOTICE
As a general principle, if any optical component other than the cell assembly and the laser
module is unserviceable, the analyzer must be repaired by Emerson. Repair, replacement,
and alignment of the optical components require the use of special optical test/calibration
equipment and procedures.
DANGER
FLAMMABLE SUBSTANCES
This article is in accordance with IEC 60079-0: 2011 Clause 30.
Some parts of the analyzer may reach temperatures of 150 °F (65 °C) and may present an
igintion source. A fire may result if this precaution is not observed.
Exercise care when using oil, paint, cleaning rags, and other flammable substances
near the analyzer.
Always assume that the interior of an analyzer is hot unless it has been switched off and
allowed to cool down.
Rosemount CT5800
Troubleshooting and diagnostics
September 2019
91