Teledyne GFC-7001T - Trace CO Analyzer - Manual (Page 65)

Getting StartedTeledyne API – Model T300/T300M CO Analyzer
Teledyne Analytical Instruments 65
Table 3-8: Zero/Span Valve Operating States for Option 50A
MODE VALVE CONDITION
SAMPLE
(Normal
State)
Sample/Cal Open to SAMPLE inlet
Zero/Span Open to IZS inlet
ZERO CAL
Sample/Cal Open to ZERO/SPAN valve
Zero/Span Open to IZS inlet
SPAN CAL
Sample/Cal Open to ZERO/SPAN valve
Zero/Span Open to PRESSURE SPAN inlet
 PTEF tubing; minimum O.D 1/4”
 10 meters long max.
 Vented outside the analyzer’s enclosure
3.3.2.5. PNEUMATIC LAYOUT FOR INTERNAL ZERO/ SPAN VALVE OPTION
Figure 3-23: Internal Pneumatic Flow – Zero/Span/Shutoff Valves (Opt 50B)