Galvanic Applied Sciences 943-TGS-CE, Operation Manual

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Revision 5 126 August 2021
drops into your hand. Set the window aside on a clean surface. Remove the bottom O-
Ring (if it didn’t drop into your hand with the window). A fine tipped tool may be required.
Discard the O-ring if there is any sign of damage or deformation.
The cell window may stick to the inner O-Ring and be difficult to remove. If
it is, cap all but one port on the top of the measurement cell and blow into
the open port, holding a hand under the cell end to catch the cell window.
The air pressure should be sufficient to loosen the cell window and allow it
to be removed.
5. Repeat Steps 1-4 for the other cell window. If the other cell window sticks to the inner
O-Ring, it may be removed by passing a soft tipped tool through the measurement cell
and pushing on it gently from the inside until it comes loose.
6. Inspect both windows for damage and/or contaminants. If the windows are damaged
(chipped, cracked, discoloured, etc.) discard and replace them with new ones. If the
windows are not damaged, they should be cleaned with isopropyl alcohol, using a non-
abrasive lint free tissue such as KimWipes
®
or a cotton swab. Thoroughly rinse the
cleaned surface with pharmaceutical grade distilled water. They should be wiped dry
using a soft, lint free cloth or tissue.
Commercially available lens or window cleaning solutions or prepackaged
lens cleaning wipes ARE NOT to be used. These products may contain a
compound which leaves an UV absorbing coating on the cell window, which
could lead to continued High Integration Period warnings.
7. Inspect the measurement cell body. Clean with isopropyl alcohol, using a nonabrasive
lint free tissue such as KimWipes® or a cotton swab. Thoroughly rinse the cleaned
surface with pharmaceutical grade distilled water and dry completely before
reassembly.
8. Hold the measurement cell vertically and install the new bottom O-Ring in the top
window recess, ensuring that it is centred and sitting in the O-Ring seat.
9. Insert the cell window. Handle the window by its edges to prevent fingerprints on the
transparent surfaces of the window.
10. Place the top O-ring onto the window and replace the cell end fitting. The O-Ring will
self-align as the end fitting is tightened. Tighten the end fitting to hand-tight only.
Do not overtighten the cell end fittings. Overtightening these fittings could
cause damage or break the windows. Also ensure that there is no cross-
threading to avoid damaging the interior threads on the sample cell
block.The cell end fitting should screw on smoothly. DO NOT FORCE!
11. Repeat steps 8 to 10 to install the O-rings and window for the other window. Look
through the cell and verify that there is an unobstructed light path, with no dirt or other
visible contaminants on the cell windows. It may be necessary to remove one or both
of the SMA connectors to check the light path. Replace the connectors to hand-tight
when done.
12. When both windows are installed, the measurement cell assembly is ready for
reinstallation as described in Section 7.8.