Teledyne T360 Manual de usuario Pagina 54

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Getting Started Teledyne API Model T360/T360M Operation Manual
52
Figure 3-19: Internal Pneumatic Flow – Ambient Zero/Pressurized Span Valves
The following table describes the state of each valve during the analyzer’s
various operational modes.
Table 3-10: Ambient Zero/Pressurized Span Valve Operating States
MODE VALVE CONDITION
Sample/Cal Open to SAMPLE inlet
Zero/Span Open to IZS inlet
SAMPLE
(Normal State)
Shutoff Valve Closed
Sample/Cal Open to ZERO/SPAN valve
Zero/Span Open to IZS inlet
ZERO CAL
Shutoff Valve Closed
Sample/Cal Open to ZERO/SPAN valve
Zero/Span Open to SHUTOFF valve
SPAN CAL
Shutoff Valve Open to PRESSURE SPAN Inlet
The minimum span gas flow rate required for this option is 800 cm
3
/min.
The state of the zero/span valves can also be controlled:
Manually from the analyzer’s front panel by using the SIGNAL I/O controls
located under the
DIAG Menu (Section 4.13.2)
By activating the instrument’s AutoCal feature (Section 5.6)
Remotely by usin
g the external digital control inputs (Section 4.15.1.2)
Remotely through the
RS-232/485 serial I/O ports (see Appendix A-6 for the
appropriate commands).
07272B DCN6552
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