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Optional Hardware and Software Teledyne API M100E Analyzer Operation Manual
58
5.7.2. INTERNAL ZERO/SPAN GAS GENERATOR (OPTION 51A)
The M100E can be equipped with an internal zero air and span gas generator (IZS). This option includes a
heated enclosure for a permeation tube, an external scrubber 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.
Figure 5-4 shows the internal pneumati
c
connections for a M100E with the IZS option installed. Table 5-5
describes the operational state of the valves associated with the IZS option during the analyzer’s various
operating modes.
EXHAUST TO OUTER LAYER
OF KICKER
VACUUM MANIFOLD
CRITICAL
FLOW
ORIFICE
CRITICAL
FLOW
ORIFICE
ZERO AIR
SCRUBBER
SAMPLE/CAL
VALVE
INSTRUMENT CHASSIS
EXHAUST GAS
OUTLET
SAMPLE GAS
INLET
KICKER EXHAUST
TO PUMP
HYDROCARBON
SCRUBBER
(KICKER)
SPAN GAS INLET
ZERO AIR INLET
UV
LAMP
PMT
SAMPLE
CHAMBER
FLOW
SENSOR
FLOW / PRESSURE
SENSOR PCA
SAMPLE
PRESSURE
SENSOR
PUMP
IZS
Permeation
Tube
SO
2
Source
ZERO/SPAN
VALVE
SAMPLE FILTER
Figure 5-4: Pneumatic Diagram of the M100E with IZS Options Installed
Table 5-5: IZS Valve Operating States
MODE VALVE CONDITION
Sample/Cal Open to SAMPLE inlet
SAMPLE
Zero/Span Open to ZERO AIR inlet
Sample/Cal Open to zero/span valve
ZERO CAL
Zero/Span Open to ZERO AIR inlet
Sample/Cal Open to zero/span valve
SPAN CAL
Zero/Span Open to SPAN GAS inlet
The state of the IZS valves can also be controlled:
04515F DCN6048