Revision 4
125
April 2020
8. Re-install the oven enclosure cover. Ensure that the fibre optic cables are still routed
in the indent in the oven enclosure frame to avoid damage when the oven enclosure
cover is installed.
9. Steam Purge the Sample Probe for between 15 and 30 minutes.
10. When purging is complete, remove the oven enclosure cover.
11. Switch valves V2 and V4 to the OFF position.
12. Disconnect the steam supply lines from the Probe Access ports on the left side of the
analyzer cabinet. Replace any sections of tubing that connect the measurement cell to
valves V1 and V3 that may have been disconnected prior to the steam purge to allow
the back purge air to begin flowing through the probe.
13. Re-install the oven enclosure cover. Ensure that the fibre optic cables are still routed
in the indent in the oven enclosure frame to avoid damage when the oven enclosure
cover is installed.
14. Close and latch the oven cabinet door.
15. Allow the back purge to continue for five to ten minutes.
20. Once the measurement cell temperature rises to >140°C, and the
Cell Temperature
fault has cleared, use the F2 / F1 keys to navigate to the
Analysis 1
panel. Perform a
manual zero calibration cycle by using the F4 / F3 keys to highlight
Manual Zero
, then
press
↵
..
21. Once the manual zero calibration cycle is complete, place the analyzer into sampling
mode by highlighting the
Sample
checkbox using the F4 / F3 keys, then press
↵
.
Alternatively, press the F6 key.
22. Once normal operation has been confirmed, return the
Online
/
Offline
control toggle
on the
Analysis 2
panel back to
Online
(green).
The oven can take up to two hours to reach operating temperature. While
the cell temperature is below the Low Cell Temperature fault set point, the
system will continue to back purge and maintain a fault indication to the
control room.
7.10
Spectrometer Replacement
In very rare cases it may be necessary to replace the analyzer spectrometer. To replace the
analyzer spectrometer, refer to Figure 77 while following the procedure below.
Replacing the spectrometer is to be performed by trained and authorized personnel
only.
Содержание 943-TGX-CE
Страница 132: ...Revision 4 132 April 2020 Figure 81 Oven Cabinet Door Removed ...
Страница 133: ...Revision 4 133 April 2020 Figure 82 Control Cabinet Door Removed ...
Страница 134: ...Revision 4 134 April 2020 Figure 83 Power Steam Air Signals Connection Details ...
Страница 135: ...Revision 4 135 April 2020 Figure 84 AC Wiring Schematic ...
Страница 136: ...Revision 4 136 April 2020 Figure 85 DC Signals and Wiring Diagram ...
Страница 137: ...Revision 4 137 April 2020 Figure 86 Flow Diagram ...