Ametek Dycor CG1000-RTP User Manual page 23

Sample Gas Connection
1. close Valve 1 and Valve 2. set the pressure of P1 on the pressure con-
troller (on the vacuum generator) to zero (Figure 3-2).
2. set the three-way valve on the back of the analyzer to OFF (Figure 3-1).
connect the sample gas from Valve 1 to the sample gas
1/8"
3. inlet on the back panel of the analyzer using 1/8" tubing.
tubing
This connection is labeled Gas In (Figure 3-1).
For the best response time, ensure that the sample line between the analyzer
and sample gas is as short as possible and keep the sample tubing diameter
as small as possible.
4. connect 1/4" tubing from Gas Outlet on the back of the
1/4" analyzer to Valve 2.
tubing The outlet pressure should not exceed 3 PSIG (207 mil-
libar).
5. use the Setup/Display key on the analyzer front panel to select flow rate
for one of the display lines
Figure 3-2 sample gas set-up.
Keep the inlet pressure as low as possible to prevent
 damaging the cell or cell O-ring seal. If the cell temperature
changes too fast because of an excessive flow rate, it can
NOTE
crack the cell. If the inlet pressure exceeds 3 PSIG, it can
damage the cell O-ring seal.
6. Ensure that the pressure from the pressure controller is less than 3
Psig.open both Valve 1 and Valve 2.
set the three-way valve on the back of the analyzer to Gas-In.
7. Slowly increase the flow of the sample gas into the analyzer to 150 cc/
min. (200 cc/min. maximum) by slowly increasing the P1 pressure from
the pressure controller. View the flow rate on the display.
Keep the inlet pressure as low as possible.
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Installation & Start-Up 3-3