Galvanic Applied Sciences 943-TGS-CE, Руководство по эксплуатации

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Revision 5 125 August 2021
7.6 Cell Windows Cleaning / Replacement
Under normal operating conditions, cell window replacement is necessary only when the
particular window becomes cracked, chipped, etched or stained to a non-cleanable degree.
However, under normal operating conditions, it is possible for the cell windows to become
sufficiently dirty to reduce their transparency to ultraviolet radiation, which can lead to a
High
Integration Period warning.
Cleaning or changing the cell windows is most easily accomplished by removing the entire
measurement cell assembly from the oven enclosure, as described in Section 7.6. It is
recommended that the measurement cell assembly is opened in a clean environment such as
a bench top.
Follow the procedure below to open up the measurement cell and clean / replace the cell
windows and their associated O-rings. Refer to Figure 79 while performing this procedure.
Figure 79: Measurement Cell Block (Exploded VIew)
1. Remove the cell as described in Section 7.5.
2. With the measurement cell in a vertical position, remove the top cell end fitting. Leave
the SMA fibre connector in place in the cell end fitting body.
3. Remove the top O-ring. If it is not on the cell window, then it will be in the end cap O-
ring groove. Discard if there is any sign of damage or deformation. A fine tipped tool
may be required to remove the O-Ring from the groove in the cell end fitting. The cell
window may also stick to the cell end fitting when it is removed.
4. If the cell window did not come out with the cell end fitting, turn the measurement cell
over, holding your hand over the open end, and gently shake until the cell window