083730300A DCN8101 Getting Started 43
SAMPLE GAS SOURCE
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.
CALIBRATION GAS SOURCES
A vent may or may not be required when a T700-series is used with this option,
depending on how the T700-series model output manifold is configured.
SPAN GAS
• Attach a gas line from the source of calibration gas (e.g. a Teledyne API’s T700 Dynamic
Dilution Calibrator) to the SPAN inlet at 30 psig.
ZERO AIR
• Zero air is supplied via a zero air generator such as a Teledyne API’s T701.
• An adjustable valve is installed in the zero air supply line to regulate the gas flow.
INPUT GAS VENTING
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.
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 analyzer’s enclosure.
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