Teledyne T200, Operation Manual, Page: 274 / 425

Troubleshooting & Service Teledyne API
– T200 NO/NO2/NOx Analyzer Operation Manual
272
12.8. SERVICE PROCEDURES
This section contains some procedures that may need to be performed when a major
component of the analyzer requires repair or replacement.
Note
Maintenance procedures (e.g., replacement of regularly changed expendables)
are discussed in Section 11 (Instrument Maintenance) and are not listed here).
Also, there may be more detailed service notes for some of the below
procedures. Contact Teledyne API's Customer Service Department.
WARNING
–
E
LECTRICAL
S
HOCK
H
AZARD
Unless the procedure being performed requires the instrument be operating, turn it
off and disconnect power before opening the analyzer and removing, adjusting or
repairing any of its components or subsystems.
C
AUTION
–
Q
UALIFIED
T
ECHNICIAN
The operations outlined in this chapter are to be performed by qualified
maintenance personnel only.
12.8.1. DISK-ON-MODULE REPLACEMENT PROCEDURE
Note Servicing of circuit components requires electrostatic discharge protection, i.e.
ESD grounding straps, mats and containers. Failure to use ESD protection when
working with electronic assemblies will void the instrument warranty. For
information on preventing ESD damage, refer to the manual, Fundamentals of
ESD, PN 04786, which can be downloaded from our website at
http://www.teledyne-api.com under Help Center > Product Manuals in the Special
Manuals section.
Replacing the Disk-on-Module (DOM) will cause loss of all DAS data; it may also
cause loss of some instrument configuration parameters unless the replacement DOM
carries the exact same firmware version. Whenever changing the version of installed
software, the memory must be reset. Failure to ensure that memory is reset can cause the
analyzer to malfunction, and invalidate measurements. After the memory is reset, the
A/D converter must be re-calibrated, and all information collected in Step 1 below must
be re-entered before the instrument will function correctly. Also, zero and span
calibration should be performed.
1. Document all analyzer parameters that may have been changed, such as range,
auto-cal, analog output, serial port and other settings before replacing the DOM.
2. Turn off power to the instrument, fold down the rear panel by loosening the
mounting screws.
06858E DCN7057