Endress+Hauser Raman Rxn2 - Page 43

Raman Rxn2 Operating Instructions
Endress+Hauser 43
Symptom
Possible cause
Description (if applicable)
Troubleshooting
Raman
RunTime
reports a
detector
temperature
warning
The camera has not
had time to cool down.
The camera usually requires 15 to 20 minutes from
the time it is powered up until it has cooled down to
the proper temperature.
Allow time for cool
down.
Several sharp
artifact peaks
appear in all
Raman spectra
The room lights are
introducing an
emission line spectrum
into the spectrograph.
Turn off any fluorescent lights during future experiments. Cover reactor with
aluminum or other light-blocking material to prevent light entering.
The number of
intensity counts
from
verification is
significantly
less than
specification
The sample is not in
the focal plane of the
fiber-optic probe.
Adjust the position of the sample with respect to the probe focus.
The fiber-optic cable is
not attached correctly
to the Raman Rxn2
base unit.
Check fibers for proper engagement and that they are latched.
The laser power
reaching the sample is
too low.
Measure the laser power at the sample and compare it to the normal power for
your configuration.
Contact Technical Service.
Spectrum sits
on top of a
broad
featureless halo
Probe tip may be
fouled.
Pull probe from process and clean the probe per the appropriate service manual
instructions.
Contact Technical Service.
No laser light
reaches the
sample
The laser is not on.
Check to see if the laser key is in place and the indicator is lit.
The laser is not lasing.
Contact Technical Service.
The internal power
plug has disconnected
from the laser.
Open the Raman Rxn2 base unit enclosure. The computer-style power cord
should be firmly plugged into its socket on the laser.
The fiber-optic cable is
not attached correctly
to the Raman Rxn2
base unit.
Check hybrid fibers for proper engagement and that they are latched.
The laser injector is
misaligned.
Contact Technical Service.
The remote interlock
connector shorting
plug is unplugged.
Make sure the remote interlock connector shorting plugs for all channels are
installed.
Make sure the corresponding front panel interlock indicators are illuminated.
The probe fiber is
broken.
The interlock cuts power to the system if the cable is broken.
Contact Technical Service.
The Calibration
Switching Module has
failed.
Contact Technical Service.
The laser has failed.
Check Options > Diagnostics for laser diode current and power.
Raman
RunTime
indicates an
excessive
number of
tracks found
during
Recalibrate All
Stray light from
connected probes are
entering spectrograph
during camera
alignment.
Cover all connected probe optics to prevent any stray light from entering the
spectrograph.