Revision 4
42
April 2020
An analyzer with at least one fault condition present will be unable to carry out sampling
and analysis of the process gas. When the fault condition clears, the analyzer will
automatically perform an auto-zero calibration and then return to normal sampling mode.
3.5.2.2
Service
The
Service
output indicates whether there is an issue with the analyzer that requires
operator attention. Table 4 describes the Service relay states.
Table 4: Service Relay States
Condition
Display Indicator Colour
Explanation
Normal
Green
All monitored system parameters are
within normal limits. No faults are present
Warning
Red
At least ONE of the following conditions
is true:
•
Control
cabinet
interior
temperature is outside specified
range
•
Spectrometer integration period
>500 ms
•
Sample Absorbance >2.0 AU
•
Sulfur
vapour
concentration
exceeds specified warning set
point
•
Spectrometer peak height at last
zero calibration is too low
An analyzer with any active warnings will continue in sampling mode and provide valid
analysis results, although warnings indicate that there is an issue with the analyzer that,
if left unchecked, could lead to a fault condition. The warning condition will clear when the
parameter that caused the warning condition returns to its normal range.
3.5.2.3
Mode
The
Mode
output indicates when a zero calibration, either manually requested or
automatic, is in progress. Table 5 describes the Mode relay states.
Table 5: Mode Relay States
Condition
Display Indicator Colour
Explanation
Run
Green
Analyzer is not performing a zero-
calibration
run,
either
manual
or
according to an automated schedule.
Calibrate
Yellow
One of the following conditions is true:
•
A clock-triggered automatic zero
calibration cycle is in progress
•
A manually requested zero
calibration cycle is in progress
•
Analyzer power is off
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 ...