Galvanic Applied Sciences 943-TGS-CE, Operation Manual

Page: 110 / 158

Revision 5 110 August 2021
7. Rinse the chamber with a small amount of new anti-solarant solution. Shake and
empty. Ensure that there are no solid deposits and the chamber windows are
completely clear.
8. Fill the fluid holder with new anti-solarant solution. Tilt and tap the fluid holder to
remove any air bubbles that may form. Leave a small amount of air space at the top of
the fluid holder to allow for thermal expansion.
Take care not to touch the Anti-Solarant Solution directly as the oils from
your hands will contaminate the solution.
9. Replace the fluid holder filler plug.
10. Replace the fluid holder into the bracket. Orient the fluid holder so that the face with
the word
LAMP
engraved on it faces the UV Source Lamp.
DO NOT touch the fluid holder windows as dirt, grease and human skin oil
will reduce their transparency to UV radiation.
11. Tighten the fluid holder locking screw (s) on the left-side of the fluid holder (#2 in Figure
72). Unless the analyzer is installed in a high-vibration environment, hand tight is
enough for these screws.
12. Reinstall the light shield and tighten the light shield retaining screws on the bottom
right-side of the fluid holder.(#4 in Figure 72).
13. Remove the protective plastic cap from the disconnected source fibre and reconnect it
to the fluid holder bracket (#1 in Figure 72). Hand tight is sufficient for this connection.
14. Reoptimize the spectrometer energy level as described in Section 6.4
6.4 Optimizing the Spectrometer Signal
Optimization of the Spectrometer signal is periodically required to maintain a sufficient signal to
noise ratio on the spectrometer output signal as the spectral output signal from the spectrometer
will degrade over time. Commonly seen causes of this degradation include:
• Degraded Anti-Solarant Solution
• Aging UV Source Lamp (output reduces over time)
•
Dirty measurement cell windows
•
Dirty optics
• Optical fibre problem
For convenience, the energy level of the spectrometer output signal is gauged by observing the
Peak Height as displayed on the Spectrum panel of the analyzer or the Spectrum page on the
Web GUI. When optimizing the spectrometer signal, the normal target value for the peak height
is 28000 counts (+/- 500).
The spectrometer energy level can be optimized manually (for special cases), or automatically
as a function of the analyzer. The automatic function will always target 28000 counts.