Teledyne GFC-7001T - Trace CO Analyzer - Manual (Page 66)

Getting StartedTeledyne API – Model T300/T300M CO Analyzer
Teledyne Analytical Instruments 66
Table 3-9: Zero/Span Valve Operating States for Option 50B
MODE VALVE CONDITION
SAMPLE
(Normal
State)
Sample/Cal Open to SAMPLE inlet
Zero/Span Open to IZS inlet
Shutoff Valve Closed
ZERO CAL
Sample/Cal Open to ZERO/SPAN valve
Zero/Span Open to IZS inlet
Shutoff Valve Closed
SPAN CAL
Sample/Cal Open to ZERO/SPAN valve
Zero/Span Open to SHUTOFF valve
Shutoff Valve Open to PRESSURE SPAN Inlet
3.3.2.6. PNEUMATIC CONNECTIONS FOR ZERO SCRUBBER/PRESSURIZED
SPAN OPTION
Figure 3-24: Pneumatic Connections – Zero Scrubber/Pressurized Span Calibration Valves (Opt 50E)
S AMPLE G AS S OURCE
Attach a sample inlet line to the sample inlet port. The SAMPLE input line should not
be more than 2 meters long.
 Maximum pressure of any gas at the sample inlet should not exceed 1.5 in-hg above
ambient pressure and ideally should equal ambient atmospheric pressure.
 In applications where the sample gas is received from a pressurized manifold, a vent
must be placed on the sample gas before it enters the analyzer.
C ALIBRATION G AS S OURCES
S PAN G AS :
 Attach a gas line from the pressurized source of calibration gas (e.g. a bottle of
NIST-SRM gas) to the span inlet.