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Getting Started
Remotely by using the external digital control inputs (refer to Section 5.3.1.2 and Section
6.7.1), or
Remotely through the RS-232/485 serial I/O ports (refer to Appendix A-6 for the
appropriate commands).
3.5.4. PNEUMATIC LAYOUT FOR INTERNAL ZERO/SPAN (IZS) GAS
GENERATOR OPTION
EXHAUST GAS
OUTLET
SAMPLE GAS
INLET
ZERO/SPAN
VALVE
IZS
Permeation
Tube
SO
Source
2
ZERO AIR INLET
62
Sources of zero and span gas must be capable of supplying at least 1.55 L/min.
(maximum 2.5L/min). Both supply lines should be vented outside of the analyzer's
enclosure. In order to prevent back-diffusion and pressure effects, these vent lines
should be between 2 and 10 meters in length.
Figure 3-20 shows the internal, pneumatic connections for the analyzer with the IZS
option installed.
KICKER EXHAUST
PUMP
SAMPLE/CAL
VALVE
Figure 3-20:
Pneumatic Layout with IZS Options
The internal zero air and span gas generator (IZS) option includes a heated enclosure
(Section 3.5.4.1) for a permeation tube (permeation tube must be purchased separately;
see Section 1.3, in SO
2
3.5.4.3) for producing zero air and a set of valves for switching between the sample gas
inlet and the output of the zero/span subsystem, functionally very similar to the valves
included in the zero/span valve option.
Teledyne ML - T100 UV Fluorescence SO2 Analyzer
TO PUMP
HYDROCARBON
SCRUBBER
(KICKER)
EXHAUST TO OUTER LAYER
OF KICKER
CRITICAL
FLOW
ORIFICE
CRITICAL
FLOW
ORIFICE
IZS Permeation Tubes option), an external scrubber (Section
Chassis
SAMPLE
CHAMBER
PMT
FLOW
SENSOR
SAMPLE
PRESSURE
SENSOR
FLOW / PRESSURE
SENSOR PCA
UV
LAMP
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