NIRS™ DA1650
User Manual 6008 1286 / Rev. 8 6:1
6 Troubleshooting
6.1 General
The NIRS DA1650 analyzer is designed to be a dependable, trouble-free instrument
with many years of use. In spite of the rugged design, problems may arise that require
attention.
There are no user-serviceable parts inside the instrument enclosure except the lamp.
Because of this design, we emphasize that under no circumstances should the user
attempt to open the instrument cabinet and service any part besides the lamp. Trying
to do so may damage or misalign components. Any diagnosis of internal functions
should be performed using software diagnostics, not by internal inspection. In the
event internal components should need replacement or other service such actions
must be done by a trained service engineer.
System failure can be detected by malfunctions and error messages. Follow the
recommendations and eliminate any possible causes listed.
When all recommendations have been checked, and if the instrument is still not
operating, please contact your local FOSS service representative or your local
authorized distributor.
To get a fast and accurate response when you are reporting a malfunction it is
essential that you try to report and describe as much relevant and specific information
as possible. Before calling for help, ask yourself the following questions:
• Can I already pinpoint the root cause of the problem myself?
• When did I first see the problem?
• Can I repeat the problem with a certain action, sequence or other method?
• Is the problem constant or is it occurring intermittently?
• Has it escalated in frequency or severity?
• Is the problem seen at specific times?
Environmental conditions shall also be considered, e.g. vibrations, electricity,
temperature, humidity etc.
If the problem is related to un-satisfactory results there are other questions that are
relevant too:
• Is it happening on all products or just one or some products?
• Is the instrument performing according to the application specification or not?
• Are the samples giving problems "normal" or extraordinary in any obvious way?
• Is the problem repeatable if I re-run the sample or re-pack the sample cup?
The Instrument Performance test and the consistent use of the Check Cell will prove
your instrument performance from day to day. Results and data from these test can
many times give a hint to where a problem origins from.
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