Teledyne 6200E - Sulfides Analyzer - Manual (Page 239)

Model 6200E Instruction Manual TROUBLESHOOTING & REPAIR
M6200E Rev: A1 239
11. TROUBLESHOOTING & REPAIR
This section contains a variety of methods for identifying and solving performance problems with
the analyzer.
CAUTION
The operations outlined in this chapter must be performed by qualified
maintenance personnel only.
CAUTION
Risk of electrical shock. Some operations need to be carried out with the
analyzer open and running. Exercise caution to avoid electrical shocks and
electrostatic or mechanical damage to the analyzer. Do not drop tools into
the analyzer or leave those after your procedures. Do not shorten or touch
electric connections with metallic tools while operating inside the
analyzer. Use common sense when operating inside a running analyzer.
NOTE
The front panel of the analyzer is hinged at the bottom and may be opened to gain
access to various components mounted on the panel itself or located near the front of
the instrument (such as the particulate filter).
A locking screw located at the top center of the panel and two fasteners located in the
upper right and left corners of the panel lock it shut (Figure 3-9).
11.1. General Troubleshooting
The analyzer has been designed so that problems can be rapidly detected, evaluated and
repaired. During operation, the analyzer continuously performs diagnostic tests and provides the
ability to evaluate its key operating parameters without disturbing monitoring operations.
A systematic approach to troubleshooting will generally consist of the following five steps:
• Note any warning messages and take corrective action as necessary.
• Examine the values of all TEST functions and compare them to factory values. Note any
major deviations from the factory values and take corrective action.
• Use the internal electronic status LED’s to determine whether the electronic communication
channels are operating properly. Verify that the DC power supplies are operating properly
by checking the voltage test points on the relay board. Note that the analyzer’s DC power
wiring is color-coded and these colors match the color of the corresponding test points on
the relay board.
• Suspect a leak first! Customer service data indicate that half of all problems are eventually
traced to leaks in the pneumatic system of the analyzer (including the external pump), the