Revision 5
108
August 2021
Figure 72: Location of Cell Heater Fuse on ACTS
5. Open the oven cabinet door and remove the black cover on the oven enclosure.
The oven enclosure and all of its components are HOT (
150°C
). Wear
appropriate personal protective equipment (gloves, eye wear, clothing etc)
if working with hot surfaces or wait until surface have cooled to safe
temperatures before performing maintenance tasks.
6. Disconnect the fibres from both the top right and the bottom right of the measurement
cell block by unscrewing the nut and pulling out.
7. Joint the two loose ends of the optical fibres together by cutting the end off of one of
the orange fibre caps and connecting both fibres into the same cap. Press the fibres
into the cap so that both ends are in contact with one another.
8. Using the PANEL NEXT / PANEL PREV keys on the keypad, navigate to the
Spectrum
panel.
9. Use the FIELD NEXT / FIELD PREV keys to select
Optimize Integ. Time
and press
ENTER to optimize the integration period. It may be necessary to press ENTER more
than once to get a peak height ≈28000 A/D counts.
10. Use the FIELD NEXT / FIELD PREV keys to select
Show Factory Reference
and
press ENTER to display the factory reference spectrum.
11. Observe the indicated integration time. If the observed integration period is <100
milliseconds AND the shape of the red current spectrum has no major differences from
the factory spectrum, both fibres are undamaged and will not require replacement. If
the lamp was replaced <6 months ago, the
High Integration Period
warning is likely
due to dirty cell windows. Refer to Section 7.5 for cleaning / replacement procedure.
Do not reinstall the fibres at the measurement cell at this time. However, if the
integration period is >100 milliseconds OR the shape of indicated spectrum is
Summary of Contents for 943-TGXeNA
Page 130: ...Revision 5 130 August 2021 Figure 82 Oven Cabinet Door Removed ...
Page 131: ...Revision 5 131 August 2021 Figure 83 Control Cabinet Door Removed ...
Page 132: ...Revision 5 132 August 2021 Figure 84 Power Steam Air Signals Connection Details ...
Page 133: ...Revision 5 133 August 2021 Figure 85 AC Wiring Schematic ...
Page 134: ...Revision 5 134 August 2021 Figure 86 DC Signals and Wiring Diagram ...
Page 135: ...Revision 5 135 August 2021 Figure 87 Flow Diagram ...