Teledyne 9110TH - Nitrogen Oxides Analyzer - Manual (Page 274)

Model 9110TH NOx Analyzer Troubleshooting & Repair
Teledyne Analytical Instruments 254
QUESTION ANSWER
Can I use the DAS system in
place of a strip chart recorder or
data logger? Yes. Section 4.7 describes the setup and operation of the DAS system in
detail.
How often do I need to change
the particulate filter? Once per week or as needed. Table 6-1 contains a maintenance schedule
listing the most important, regular maintenance tasks. Highly polluted
sample air may require more frequent changes.
How long does the sample pump
last? The sample pump should last one to two years and the pump head should
be replaced when necessary. Use the RCEL pressure indicator on the front
panel to see if the pump needs replacement.
If this value goes above 10 in-Hg-A, on average, the pump head needs to
be rebuilt.
Why does my RS-232 serial
connection not work? There are several possible reasons:
 The wrong cable, please use the provided or a generic “straight-
through” cable (do not use a “null-modem” type cable),
 The DCE/DTE switch on the back of the analyzer is not set properly;
make sure that both green and red lights are on,
 The baud rate of the analyzer’s COM port does not match that of the
serial port of your computer/data logger. See Section 11.5.11 more
trouble-shooting information.
7.9. TECHNICAL ASSISTANCE
If this manual and its trouble-shooting / repair sections do not solve your problems,
technical assistance may be obtained from:
General Tech Support
(7:30 - 4:30 pm Pacific)
626-934-1673
Email: [email protected] .
If none of our on-line guides provide a solution, please contact our Customer Service
Department via email at [email protected] Please include the
following details in your email:
 Full name of the person placing the request
 Complete legal name of the company (No acronyms)
 Telephone and fax number with area code (country code for international
numbers)
 Company street address, city, state and country
 Model number and serial number of the Teledyne product
 Brief explanation of technical support request
 Advise product application or end-use