Revision 4
120
April 2020
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 75.
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 76 while performing this procedure.
Figure 76: 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.
Summary of Contents for 943-TGX-CE
Page 132: ...Revision 4 132 April 2020 Figure 81 Oven Cabinet Door Removed ...
Page 133: ...Revision 4 133 April 2020 Figure 82 Control Cabinet Door Removed ...
Page 134: ...Revision 4 134 April 2020 Figure 83 Power Steam Air Signals Connection Details ...
Page 135: ...Revision 4 135 April 2020 Figure 84 AC Wiring Schematic ...
Page 136: ...Revision 4 136 April 2020 Figure 85 DC Signals and Wiring Diagram ...
Page 137: ...Revision 4 137 April 2020 Figure 86 Flow Diagram ...