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2.1.2. Emitter ageing
Figure 8: Spectrum is tilted showing signs of emitter ageing
The infrared emitter in the probe is expected to age over its lifetime. The results of this can be
seen in Figure 8: the spectrum is tilted; the absorbance is positive across the whole spectrum;
and the spectrum is not flat in the region 800-1800 cm
-1
(contrast with Figure 3, above). If
evidence of emitter ageing is seen, it may be required to take a new background scan to
remove this effect
– contact Keit for advice.
2.2. Remote health check
Keit can perform an annual examination of your system’s health data remotely to determine if
any servicing needs to be carried out. This includes review of internal diagnostics for warnings
and errors, component performance for signs of premature ageing, and evaluation of
background reference spectra history for signs of operator error or progressive damage.
Remote health checks are offered annually as a part of our MSP.
2.3. Cleaning the fibre optic data cable connectors
Once installed and in normal operation there should be no need to clean the fibre optic
connectors. If the instrument needs to be moved so the connectors are disconnected, it is
recommended that the connectors are cleaned before being re-connected.
The fibre connectors are cleaned with a cleaning pen as shown below.
Figure 9: Fibre-cleaning pen
