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Getting StartedTeledyne API – Model T300/T300M CO Analyzer
Teledyne Analytical Instruments 67
Span gas can by generated by a T700 Dynamic Dilution Calibrator.
Z
ERO AIR:
Zero air is supplied internally via a zero air scrubber that draws ambient air through
the ZERO AIR inlet.
I
NLET PRESSURE RATING/CONSIDERATION
This instrument has no significant internal restriction other than the flow control device
and pressure sensor shown in Figure 3-20. Sample must be introduced to the inlet fitting
at a fraction of a PSI above ambient pressure, just enough to drive the flow to the proper
value range.
If a pressurized source is used, both the zero air supply and sample gas line MUST be
vented in order to ensure that the gases input do not exceed the maximum inlet pressure
of the analyzer as well as to prevent back diffusion and pressure effects. These vents
should be:
At least 0.2m long;
No more than 2m long and;
Vented outside the shelter or immediate area surrounding the instrument.
A similar vent line should be connected to the VENT SPAN outlet on the back of the
analyzer.
E
XHAUST OUTLET
Attach an exhaust line to the analyzer’s EXHAUST outlet fitting. The exhaust line
should be:
PTEF tubing; minimum O.D 1/4”;
A maximum of 10 meters long;
Vented outside the analyzer’s enclosure.