Revision 5
117
August 2021
under the cell block to catch the plate as you release the last screw. Place the screws
in the storage box in the control cabinet.
13. Carefully remove the measurement cell block from the analyzer. Disconnect any
additional tubing as required to remove the measurement cell block, bearing in mind
the warning displayed in Figure 76.
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 77 while performing this procedure.
Figure 77: 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.
Содержание 943-TGXeNA
Страница 130: ...Revision 5 130 August 2021 Figure 82 Oven Cabinet Door Removed ...
Страница 131: ...Revision 5 131 August 2021 Figure 83 Control Cabinet Door Removed ...
Страница 132: ...Revision 5 132 August 2021 Figure 84 Power Steam Air Signals Connection Details ...
Страница 133: ...Revision 5 133 August 2021 Figure 85 AC Wiring Schematic ...
Страница 134: ...Revision 5 134 August 2021 Figure 86 DC Signals and Wiring Diagram ...
Страница 135: ...Revision 5 135 August 2021 Figure 87 Flow Diagram ...