Ametek Dycor CG1000-RTP User Manual page 25

Figure 3-3 Calibration Gas Set-Up
1. set the 3-way valve on the back of the analyzer to OFF.
connect the calibration, span and zero gases to the 3-way valve.
1/8" using 1/8" tubing, connect the outlet of the 3-way valve to a 1/8" compres-
2.
tubing sion T-fitting. Using 1/8" tubing, connect one side of the T-fitting to the
CAL port on the back panel of the analyzer.
Cut a 9"-length piece of 1/8" tubing and connect it to the other side of the T-fitting.
3. This 9"-length tubing prevents air from getting back into the system and influencing
calibration gases.
4. Temporarily connect a mechanical flow meter to the end of the 9" length of tubing.
use the Setup/Display key on the analyzer front panel and select Flow Rate for one of
5.
the display lines.
You can skip
set the 3-way valve to the Span Gas position. Using the flow control
this step if
6. valve on the span gas cylinder, adjust the flow rate until the mechanical
using room
air as your
flow meter reads 2 SCFH.
span gas.
set the 3-way valve to the Zero Gas position. Using the flow control valve on the zero
7.
gas cylinder, adjust the flow rate until the mechanical flow meter reads 2 SCFH.
8. Remove the mechanical flow meter and set the 3-way valve to OFF.
Figure 3-4 Alternate Calibration Gas Set-Up
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Installation & Start-Up 3-5