Teledyne 6400EH - Sulfur Dioxide Analyzer - Manual (Page 23)

UV Fluorescence SO2 Analyzer Getting Started
Teledyne Analytical Instruments 11
3.2 Pneumatic Connections
3.2.2 Pneumatic Connections to the 6400EH
Note: To prevent dust from getting into the analyzer, it was
shipped with small plugs inserted into each of the
pneumatic fittings on the rear panel. Make sure that all dust
plugs are removed before attaching exhaust
and supply gas lines.
Table 3-1: Inlet / Outlet Connector Nomenclature
REAR PANEL
LABEL
FUNCTION
Sample Connects the sample gas to the analyzer. When operating the analyzer without
zero/span option, this is also the inlet for any calibration gases.
Exhaust Connect an exhaust gas line to this port to the inlet of the external pump.
Zero Air
On Units with zero/span valve option installed, this port connects the zero air gas or the
zero air cartridge to the analyzer.
Figure 3-5 of the 6400E Manual shows the internal pneumatic flow
of the 6400E in its standard configuration. For a diagram of the internal
pneumatic flow of the 6400EH, see Figure 3-2 of this manual.
3.2.2.1 P NEUMATIC C ONNECTIONS TO 6400EH B ASIC C ONFIGURATION
The pneumatic connections for the 6400EH analyzer in its basic
configuration are nearly identical to those described the 6400E Manual
in Section 3.1.2.2 except that the 6400EH has an external pump.
Therefore:
 A pneumatic line of ¼” PTEF must be attached between the
analyzer’s exhaust port and the inlet port of the pump.
 The exhaust from must be vented outside the shelter or immediate
area surrounding the instrument using a maximum of 10 meters of
1/4” PTFE tubing.