infrared industries IR-8400D, Operator'S Manual

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The sample-in and sample-out connections are made through 3/8-inch compression tube fittings, while
the span and zero gas inputs are made at the selector valve through 1/4-inch compression tube fittings.
To install tubing to these fittings, cut the tubing square, and deburr as necessary. Insert the tubing into
the fitting cap (cap in place) as far as it will go. Use one open-end wrench to hold the body of the fitting,
and another to rotate the cap 1 1/4 turns past finger-tight. DO NOT OVER TIGHTEN. When reinstalling
the tubing, rotate the cap no more than 1/8 turn past finger-tight.
In operation, the sample conditioner is designed to remove particulates and condensed vapors from the
sample gas. The pressure regulator reduces the sample pressure to approximately 8 psig while the
pressure relief valve limits the pressure to the flow meter to approximately 15 psig in case of regulator
failure. The flow meter monitors and is used to adjust the flow of gas to the analyzer to approximately 1
scfh.
Figure 5: IR1150/1151 Sample Conditioner
1) Input Gas Shut-Off Valve
2) High-Pressure Filter with Constant Drain Port
3) Pressure Regulator (5-15 PSI, set @ 10 PSI)
4) Pressure Relief Valve (set @ 20 PSI)
5) Low Pressure Filter
6) Water Drain
7) 4-Way Sample/Cal/Zero Valve
8) Zero Gas Input (5-10 PSI, set @ 10 PSIG)
9) Cal Gas Input (5-10 PSI, set @ 10 PSIG)
10) Flow Regulator (0-5.0 SCFH, set @ 2 SCFH)
11) 3/8” SS Tubing (316)