4-34 | Model 933S UV Analyzer
Measuring Cell (Oven) Temperature Control (Optional)
The Measuring Cell operating temperature is monitored (and controlled,
if the Measuring Cell is heated) and used to calculate the analyzer results.
For optional heated Measuring Cells, the (Measuring)
Cell
temperature
Setpoint
parameter should be at least 5 °C above the dewpoint tempera-
ture of the sample gas. If the Measuring Cell is unheated, the setpoint will
be 0 °C. In this case, the ambient temperature should be at least 5 °C above
the sample dewpoint temperature.
The
Cell
Too Hot
setpoint should be 5 °C to 10 °C
above
the
Cell
Setpoint
temperature. The
Cell
Too Cold
setpoint should be 5 °C to 10 °C
below
the
Cell
Setpoint
temperature.
The (Measuring)
Cell
temperature setpoints are
factory-set, based on
ambient temperature data specific to the application and location.
If the Measuring Cell temperature falls below its
Too Cold
Setpoint
or
exceeds its
Too Hot
Setpoint
, the “
w: Cell temperature out of range
” alarm
will be triggered and displayed in the software. The alarm can be either
a Fault or Warning alarm, depending on whether the analyzer is control-
ling the Measuring Cell. If the analyzer
is controlling
the Measuring Cell
(analyzers with a heated Measuring Cell), the “
f: Cell temperature out of
range
” alarm will be triggered and displayed in the software. If the ana-
lyzer
is not controlling
the Measuring Cell (analyzers with an unheated
Measuring Cell), the “
w: Cell temperature out of range
” alarm will be trig-
gered and displayed in the software.
The Measuring Cell temperature control is protected by an independent
over-temperature circuit, with a trip temperature of 170 °C. The default
Measuring
Cell
temperature
Setpoint
is factory-set, and is dependent
upon the stream temperature. Confirm the
Cell/Oven Setpoint
for your
system on the “Analyzer Programming Parameters” sheet (part of the ana-
lyzer Documentation Package).
Status (tab)
<<MC
Scode>>
NOTE
Содержание 933S
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Страница 52: ...3 6 Model 933S UV Analyzer Figure 3 1 Analyzer backpan dimensions European...
Страница 91: ...Installation and Start Up 3 45 Figure 3 24 Column Profile...
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Страница 187: ...Maintenance and Troubleshooting 6 11 Figure 6 2 Optical Bench Assembly with Standard Range Measuring Cell...
Страница 190: ...6 14 Model 933S UV Analyzer Figure 6 3 1 Standard Range Cell 40 cm or smaller...
Страница 191: ...Maintenance and Troubleshooting 6 15 Figure 6 3 2 Low Range White Cell 81 2 cm P N 100 1780 1A...
Страница 197: ...Maintenance and Troubleshooting 6 21 Figure 6 4 Column Block assembly...
Страница 229: ...Maintenance and Troubleshooting 6 53 Figure 6 14 Optical Bench Chopper Assembly Maintenance diagram 100 2313 1A...
Страница 246: ...6 70 Model 933S UV Analyzer Figure 6 18 Microcontroller board P N 100 1781 SW400...
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Страница 268: ...A 4 Model 933S UV Analyzer Sample Flow Diagram Plumbing Schematic North American Style WX 933NA 2...
Страница 272: ...A 8 Model 933S UV Analyzer Lower Enclosure Layout WX 14838...
Страница 274: ...A 10 Model 933S UV Analyzer RS 232 Communications Cable Connections 300 9480...
Страница 279: ...Appendix A Drawings A 15 Optical Bench Board P N 100 1662...
Страница 280: ...A 16 Model 933S UV Analyzer PMT Buffer Board 100 0140...
Страница 285: ...Appendix A Drawings A 21 Inlet and Vent Flame Arrestor Locations Environmental Purge Option 100 1783 1A...
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