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Model 300E Carbon Monoxide Analyzer
Instruction Manual
Getting Started
P/N 04288 REV: A
29
4.
Once the appropriate pneumatic connections have been made, check all
pneumatic fittings for leaks using a procedure similar to that defined in
Section 9.3.3.
No Valve Options Installed
MODEL
300E
Sample
Exhaust
Pressure Span
Vent Span
IZS
MODEL 700
Gas Dilution
Calibrator
MODEL 701
Zero Air Generator
VENT
Calibrated
CO Gas
Source of
SAMPLE Gas
Removed
during
Calibration
MODEL
300E
Sample
Exhaust
Pressure Span
Vent Span
IZS
MODEL 701
Zero Air Generator
VENT
Calibrated
CO Gas
Source of
SAMPLE Gas
Removed
during
Calibration
Valve
OR
Needle Valve to
control Flow
Figure 3–3: Basic Pneumatic Connections Flow Diagram
NOTE
The Inlet/Outlet labels appearing in the various pneumatic diagrams found in this
manual (such as Figure 3–3).
The order in which they appear in the illustrations IS NOT necessarily the same order
in which they are arranged on the rear panel of the instrument.
CAUTION
Sample Gas pressure must equal ambient atmospheric pressure.
In applications where the sample gas is received from a pressurized
manifold, a vent must be placed as shown to equalize the sample gas
with ambient atmospheric pressure before it enters the analyzer.
This vent line must be:
q
At least 0.2m long
q
No more than 2m long
q
Vented outside the shelter or immediate area surrounding the
instrument