Revision 4
118
April 2020
procedure. If the
High Integration Period
warning is still present and the fibres have
already been tested as described in Section 7.3, however, it is likely that the cell
windows are dirty and/or damaged. Proceed to Section 7.5
– 7.6
35. 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
↵
.
36. Place the analyzer into sampling mode by highlighting the
Sample
checkbox using the
F4 / F3 keys, then press
↵
. Alternatively, press the F6 key.
37. Once normal operation has been confirmed, return the
Online
/
Offline
control toggle
on the
Analysis 2
panel back to
Online
(green).
7.5
Measurement Cell Block Removal
The measurement cell block will require removal only when there is a suspected sampling
problem or if it becomes necessary to clean or change the cell windows and/or O-Rings. A
sampling problem could be due to system plugging or collection of nongaseous material in the
measurement cell.
The measurement cell is to be removed by trained and authorized personnel only.
Follow the procedure to remove the measurement cell block from the analyzer.
1. Place the analyzer in Offline mode by toggling the
Online / Offline
control toggle
(Section 4.3.1) on the
Analysis 2
panel to
Offline
(red).
2. Place the analyzer in back purge mode by pressing the F6 key on the keypad OR by
placing the X in the
Back Purge
check box on the
Analysis 1
panel.
3. Access the purged control cabinet following proper user company and/or regulatory
agency procedure.
The control cabinet door may NOT be opened while the analyzer is
energized UNLESS the area is known to be non-hazardous. Observe all the
warning labels on the analyzer enclosures. The control cabinet door cannot
be opened while the analzyer is energized unless the purge control box is
first bypassed. Refer to section 3.3.
DO NOT look at the end of disconnected fibres connected to the UV lamp or
place them in contact with skin. The intense UV radiation transmitted
through these fibres can cause eye and skin damage. Fibres should be
capped immediately after disconnection to prevent acidental exposure to
UV radiation.
4. Turn the oven heaters off by locating the Heater AC Power fuse terminal on terminal
block ACTS:25. Lift the fuse terminal tab opening the terminal block and thus
disconnecting the Heater AC Power fuse, as shown in Figure 71.
5. Open the oven cabinet door and remove the black cover on the oven enclosure.
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 ...