TELEDYNE API T300M - Pneumatic Connections: Ambient Zero;Ambient Span Option; Figure 2-17. T300;T300 M Pneumatic Connections - Option 50 A: Zero;Span

42 Getting Started 083730300A DCN8101
EXHAUST OUTLET
Attach an exhaust line to the analyzer’s EXHAUST outlet fitting. The exhaust line
should be:
• PTFE tubing; minimum O.D ¼”;
• A maximum of 10 meters long;
• Vented outside the T300/T300M Analyzer’s enclosure.
2.3.2.3 PNEUMATIC CONNECTIONS: AMBIENT ZERO/AMBIENT SPAN OPTION
This valve option is intended for applications where:
• Zero air is supplied by a zero air generator like the Teledyne API’s T701 and;
• Span gas is supplied by a gas dilution calibrator like the Teledyne API’s T700.
Internal zero/span and sample/cal valves control the flow of gas through the instrument,
but because the generator and calibrator limit the flow of zero air and span gas, no shutoff
valves are required.
See Figure 2-2 for the location of gas inlets.
Source of
SAMPLE GAS
Removed during
calibration
MODEL 701
Zero Gas
Generator
Calibrated
CO Gas
at span gas
concentration
(Adjust to 30
psig)
VENT her e if input
is pressurized
PRESSURE/SPAN
AIR/IZS
SAMPLE
EXHAUST
VENT/SPAN
Model 700E gas
Dilution
Calibrator
VENT
VENT
Instrument
Chassi s
Exhaust must be
vented outside of
shelter or immediate
area surrounding
the instrument.
Figure 2-17. T300/T300M Pneumatic Connections – Option 50A: Zero/Span